IgniteKernal (Ignite 2.15.0)

java.lang.Object
- org.apache.ignite.internal.IgniteKernal

All Implemented Interfaces:

Externalizable, Serializable, AutoCloseable, Ignite, IgniteEx
```
public class IgniteKernal
extends Object
implements IgniteEx, Externalizable
```
This class represents an implementation of the main Ignite API Ignite which is expanded by additional methods of IgniteEx for the internal Ignite needs. It also controls the Ignite life cycle, checks thread pools state for starvation, detects long JVM pauses and prints out the local node metrics.
Please, refer to the wiki http://en.wikipedia.org/wiki/Kernal for the information on the misspelling.

Starting
The main entry point for all the Ignite instances creation is the method - start(org.apache.ignite.configuration.IgniteConfiguration, org.apache.ignite.internal.util.lang.GridAbsClosure, org.apache.ignite.internal.worker.WorkersRegistry, java.lang.Thread.UncaughtExceptionHandler, org.apache.ignite.internal.util.TimeBag).
It starts internal Ignite components (see GridComponent), for instance:
- GridManager - a layer of indirection between kernal and SPI modules.
- GridProcessor - an objects responsible for particular internal process implementation.
- IgnitePlugin - an Ignite addition of user-provided functionality.
The start method also performs additional validation of the provided IgniteConfiguration and prints some suggestions such as:
- Ignite configuration optimizations (e.g. disabling EventType events).
- JvmConfigurationSuggestions optimizations.
- OsConfigurationSuggestions optimizations.
Stopping
To stop Ignite instance the stop(boolean) method is used. The cancel argument of this method is used:
- With true value. To interrupt all currently acitve GridComponents related to the Ignite node. For instance, ComputeJob will be interrupted by calling ComputeJob.cancel() method. Note that just like with Thread.interrupt(), it is up to the actual job to exit from execution.
- With false value. To stop the Ignite node gracefully. All jobs currently running will not be interrupted. The Ignite node will wait for the completion of all GridComponents running on it before stopping.
See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`CFG_VIEW` Name of the configuration system view.
`static String`	`CFG_VIEW_DESC` Description of the configuration system view.
`static String`	`COORDINATOR_PROPERTIES_SEPARATOR` The separator is used for coordinator properties formatted as a string.
`static boolean`	`DFLT_LOG_CLASSPATH_CONTENT_ON_STARTUP`
`static long`	`DFLT_LONG_OPERATIONS_DUMP_TIMEOUT` Default timeout in milliseconds for dumping long running operations.
`static long`	`DFLT_PERIODIC_STARVATION_CHECK_FREQ` Default interval of checking thread pool state for the starvation.
`static String`	`NL` System line separator.
`static String`	`SITE` Ignite web-site that is shown in log messages.

Constructor Summary

Constructors
Constructor and Description

IgniteKernal()
No-arg constructor is required by externalization.

IgniteKernal(@Nullable GridSpringResourceContext rsrcCtx)

Constructors
Constructor and Description
`IgniteKernal()` No-arg constructor is required by externalization.
`IgniteKernal(@Nullable GridSpringResourceContext rsrcCtx)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`active()` Checks Ignite grid is active or not active.
`void`	`active(boolean active)` Changes Ignite grid state to active or inactive.
`<K,V> void`	`addCacheConfiguration(CacheConfiguration<K,V> cacheCfg)` Adds cache configuration template.
`<K> Affinity<K>`	`affinity(String cacheName)` Gets affinity service to provide information about data partitioning and distribution.
`boolean`	`allEventsUserRecordable(int[] types)` Checks whether all provided events are user-recordable.
`@Nullable IgniteAtomicLong`	`atomicLong(String name, AtomicConfiguration cfg, long initVal, boolean create)` Will get a atomic long from cache and create one if it has not been created yet and `create` flag is `true`.
`@Nullable IgniteAtomicLong`	`atomicLong(String name, long initVal, boolean create)` Will get a atomic long from cache and create one if it has not been created yet and `create` flag is `true`.
`<T> IgniteAtomicReference<T>`	`atomicReference(String name, AtomicConfiguration cfg, T initVal, boolean create)` Will get a atomic reference from cache and create one if it has not been created yet and `create` flag is `true`.
`<T> @Nullable IgniteAtomicReference<T>`	`atomicReference(String name, T initVal, boolean create)` Will get a atomic reference from cache and create one if it has not been created yet and `create` flag is `true`.
`@Nullable IgniteAtomicSequence`	`atomicSequence(String name, AtomicConfiguration cfg, long initVal, boolean create)` Will get an atomic sequence from cache and create one if it has not been created yet and `create` flag is `true`.
`@Nullable IgniteAtomicSequence`	`atomicSequence(String name, long initVal, boolean create)` Will get an atomic sequence from cache and create one if it has not been created yet and `create` flag is `true`.
`<T,S> IgniteAtomicStamped<T,S>`	`atomicStamped(String name, AtomicConfiguration cfg, T initVal, S initStamp, boolean create)` Will get a atomic stamped from cache and create one if it has not been created yet and `create` flag is `true`.
`<T,S> @Nullable IgniteAtomicStamped<T,S>`	`atomicStamped(String name, T initVal, S initStamp, boolean create)` Will get a atomic stamped from cache and create one if it has not been created yet and `create` flag is `true`.
`IgniteBinary`	`binary()` Gets an instance of `IgniteBinary` interface.
`<K,V> IgniteCache<K,V>`	`cache(String name)` Gets an instance of `IgniteCache` API for the given name if one is configured or `null` otherwise.
`Collection<String>`	`cacheNames()` Gets the collection of names of currently available caches.
`Collection<IgniteCacheProxy<?,?>>`	`caches()`
`Collection<IgniteInternalCache<?,?>>`	`cachesx(IgnitePredicate<? super IgniteInternalCache<?,?>>[] p)` Gets configured cache instance that satisfy all provided predicates including non-public caches.
`<K,V> IgniteInternalCache<K,V>`	`cachex(String name)` Gets the cache instance for the given name if one is configured or `null` otherwise returning even non-public caches.
`void`	`close()` Closes `this` instance of grid.
`IgniteClusterEx`	`cluster()` Gets an instance of `IgniteCluster` interface.
`IgniteCompute`	`compute()` Gets `compute` facade over all cluster nodes started in server mode.
`IgniteCompute`	`compute(ClusterGroup grp)` Gets `compute` facade over the specified cluster group.
`IgniteConfiguration`	`configuration()` Gets the configuration of this Ignite instance.
`GridKernalContext`	`context()` It's intended for use by internal marshalling implementation only.
`@Nullable IgniteCountDownLatch`	`countDownLatch(String name, int cnt, boolean autoDel, boolean create)` Gets or creates count down latch.
`<K,V> IgniteCache<K,V>`	`createCache(CacheConfiguration<K,V> cacheCfg)` Dynamically starts new cache with the given cache configuration.
`<K,V> IgniteCache<K,V>`	`createCache(CacheConfiguration<K,V> cacheCfg, NearCacheConfiguration<K,V> nearCfg)` Dynamically starts new cache with the given cache configuration.
`<K,V> IgniteCache<K,V>`	`createCache(String cacheName)` Dynamically starts new cache using template configuration.
`Collection<IgniteCache>`	`createCaches(Collection<CacheConfiguration> cacheCfgs)` Dynamically starts new caches with the given cache configurations.
`<K,V> IgniteCache<K,V>`	`createNearCache(String cacheName, NearCacheConfiguration<K,V> nearCfg)` Starts a near cache on local node if cache was previously started with one of the `Ignite.createCache(CacheConfiguration)` or `Ignite.createCache(CacheConfiguration, NearCacheConfiguration)` methods.
`Collection<DataRegionMetrics>`	`dataRegionMetrics()` Returns a collection of `DataRegionMetrics` that reflects page memory usage on this Apache Ignite node instance.
`@Nullable DataRegionMetrics`	`dataRegionMetrics(String memPlcName)` Returns the latest `DataRegionMetrics` snapshot for the memory region of the given name.
`void`	`dataStorageReport()`
`<K,V> IgniteDataStreamer<K,V>`	`dataStreamer(String cacheName)` Gets a new instance of data streamer associated with given cache name.
`void`	`destroyCache(String cacheName)` Destroys a cache with the given name and cleans data that was written to the cache.
`boolean`	`destroyCache0(String cacheName, boolean sql)` Stops dynamically started cache.
`IgniteInternalFuture<Boolean>`	`destroyCacheAsync(String cacheName, boolean sql, boolean checkThreadTx)`
`void`	`destroyCaches(Collection<String> cacheNames)` Destroys caches with the given names and cleans data that was written to the caches.
`IgniteInternalFuture<?>`	`destroyCachesAsync(Collection<String> cacheNames, boolean checkThreadTx)`
`void`	`dumpDebugInfo()` Dumps debug information for the current node.
`IgniteEncryption`	`encryption()` Gets an instance of `IgniteEncryption` interface.
`IgniteEvents`	`events()` Gets `events` facade over all cluster nodes.
`IgniteEvents`	`events(ClusterGroup grp)` Gets `events` facade over nodes within the cluster group.
`boolean`	`eventUserRecordable(int type)` Checks if the event type is user-recordable.
`ExecutorService`	`executorService()` Creates a new `ExecutorService` which will execute all submitted `Callable` and `Runnable` jobs on all cluster nodes.
`ExecutorService`	`executorService(ClusterGroup grp)` Creates a new `ExecutorService` which will execute all submitted `Callable` and `Runnable` jobs on nodes in the specified cluster group.
`<K,V> IgniteInternalCache<K,V>`	`getCache(String name)`
`<K,V> IgniteCache<K,V>`	`getOrCreateCache(CacheConfiguration<K,V> cacheCfg)` Gets existing cache with the given name or creates new one with the given configuration.
`<K,V> IgniteCache<K,V>`	`getOrCreateCache(CacheConfiguration<K,V> cacheCfg, NearCacheConfiguration<K,V> nearCfg)` Gets existing cache with the given cache configuration or creates one if it does not exist.
`<K,V> IgniteCache<K,V>`	`getOrCreateCache(String cacheName)` Gets existing cache with the given name or creates new one using template configuration.
`<K,V> IgniteBiTuple<IgniteCache<K,V>,Boolean>`	`getOrCreateCache0(CacheConfiguration<K,V> cacheCfg, boolean sql)` Gets existing cache with the given name or creates new one with the given configuration.
`IgniteInternalFuture<?>`	`getOrCreateCacheAsync(String cacheName, String templateName, CacheConfigurationOverride cfgOverride, boolean checkThreadTx)`
`Collection<IgniteCache>`	`getOrCreateCaches(Collection<CacheConfiguration> cacheCfgs)` Gets existing caches with the given name or created one with the given configuration.
`<K,V> IgniteCache<K,V>`	`getOrCreateNearCache(String cacheName, NearCacheConfiguration<K,V> nearCfg)` Gets existing near cache with the given name or creates a new one.
`<K,V> GridCacheAdapter<K,V>`	`internalCache(String name)` USED ONLY FOR TESTING.
`boolean`	`isJmxRemoteEnabled()` Whether or not remote JMX management is enabled for this node.
`boolean`	`isRebalanceEnabled()` Get rebalance enabled flag.
`boolean`	`isRestartEnabled()` Whether or not node restart is enabled.
`boolean`	`isStopping()`
`String`	`latestVersion()` Get latest version in string form.
`ClusterNode`	`localNode()` Gets local grid node.
`UUID`	`localNodeId()`
`IgniteLogger`	`log()` Gets grid's logger.
`Collection<MemoryMetrics>`	`memoryMetrics()`
`@Nullable MemoryMetrics`	`memoryMetrics(String memPlcName)`
`IgniteMessaging`	`message()` Gets `messaging` facade over all cluster nodes.
`IgniteMessaging`	`message(ClusterGroup prj)` Gets `messaging` facade over nodes within the cluster group.
`String`	`name()` Gets the name of the Ignite instance.
`void`	`onDisconnected()` Method is responsible for handling the `EventType.EVT_CLIENT_NODE_DISCONNECTED` event.
`void`	`onReconnected(boolean clusterRestarted)`
`<T extends IgnitePlugin> T`	`plugin(String name)` Gets an instance of deployed Ignite plugin.
`<T> @Nullable IgniteQueue<T>`	`queue(String name, int cap, CollectionConfiguration cfg)` Will get a named queue from cache and create one if it has not been created yet and `cfg` is not `null`.
`void`	`readExternal(ObjectInput in)`
`protected Object`	`readResolve()`
`void`	`rebalanceEnabled(boolean rebalanceEnabled)` Set rebalance enable flag on node.
`@Nullable IgniteLock`	`reentrantLock(String name, boolean failoverSafe, boolean fair, boolean create)` Gets or creates reentrant lock.
`void`	`resetLostPartitions(Collection<String> cacheNames)` Clears partition's lost state and moves caches to a normal mode.
`IgniteScheduler`	`scheduler()` Gets an instance of cron-based scheduler.
`@Nullable IgniteSemaphore`	`semaphore(String name, int cnt, boolean failoverSafe, boolean create)` Gets or creates semaphore.
`IgniteInternalFuture`	`sendIoTest(ClusterNode node, byte[] payload, boolean procFromNioThread)`
`IgniteInternalFuture`	`sendIoTest(List<ClusterNode> nodes, byte[] payload, boolean procFromNioThread)`
`IgniteServices`	`services()` Gets `services` facade over all cluster nodes started in server mode.
`IgniteServices`	`services(ClusterGroup grp)` Gets `services` facade over nodes within the cluster group.
`<T> @Nullable IgniteSet<T>`	`set(String name, CollectionConfiguration cfg)` Will get a named set from cache and create one if it has not been created yet and `cfg` is not `null`.
`<T> IgniteSet<T>`	`set(String name, int cacheId, boolean collocated, boolean separated)` Gets a set from cache by known cache id.
`IgniteSnapshot`	`snapshot()`
`void`	`start(IgniteConfiguration cfg, GridAbsClosure errHnd, WorkersRegistry workerRegistry, Thread.UncaughtExceptionHandler hnd, TimeBag startTimer)`
`void`	`stop(boolean cancel)` Stops Ignite instance.
`String`	`toString()`
`@NotNull TracingConfigurationManager`	`tracingConfiguration()` Returns the `TracingConfigurationManager` instance that allows to Configure tracing parameters such as sampling rate for the specific tracing coordinates such as scope and label.
`IgniteTransactions`	`transactions()` Gets grid transactions facade.
`String`	`upTimeFormatted()`
`<K extends GridCacheUtilityKey,V> IgniteInternalCache<K,V>`	`utilityCache()` Gets utility cache.
`IgniteProductVersion`	`version()` Gets Ignite version.
`String`	`vmName()`
`void`	`writeExternal(ObjectOutput out)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - SITE
```
public static final String SITE
```
    Ignite web-site that is shown in log messages.
    
    See Also:
    
    Constant Field Values
  - NL
```
public static final String NL
```
    System line separator.
  - CFG_VIEW
```
public static final String CFG_VIEW
```
    Name of the configuration system view.
    
    See Also:
    
    Constant Field Values
  - CFG_VIEW_DESC
```
public static final String CFG_VIEW_DESC
```
    Description of the configuration system view.
    
    See Also:
    
    Constant Field Values
  - DFLT_PERIODIC_STARVATION_CHECK_FREQ
```
public static final long DFLT_PERIODIC_STARVATION_CHECK_FREQ
```
    Default interval of checking thread pool state for the starvation. Will be used only if the IgniteSystemProperties.IGNITE_STARVATION_CHECK_INTERVAL system property is not set.
    Value is 30 sec.
    
    See Also:
    
    Constant Field Values
  - COORDINATOR_PROPERTIES_SEPARATOR
```
public static final String COORDINATOR_PROPERTIES_SEPARATOR
```
    The separator is used for coordinator properties formatted as a string.
    
    See Also:
    
    Constant Field Values
  - DFLT_LONG_OPERATIONS_DUMP_TIMEOUT
```
public static final long DFLT_LONG_OPERATIONS_DUMP_TIMEOUT
```
    Default timeout in milliseconds for dumping long running operations. Will be used if the IgniteSystemProperties.IGNITE_LONG_OPERATIONS_DUMP_TIMEOUT is not set.
    Value is 60 sec.
    
    See Also:
    
    Constant Field Values
  - DFLT_LOG_CLASSPATH_CONTENT_ON_STARTUP
```
public static final boolean DFLT_LOG_CLASSPATH_CONTENT_ON_STARTUP
```
    See Also:
    
    IgniteSystemProperties.IGNITE_LOG_CLASSPATH_CONTENT_ON_STARTUP, Constant Field Values
- Constructor Detail
  - IgniteKernal
```
public IgniteKernal()
```
    No-arg constructor is required by externalization.
  - IgniteKernal
```
public IgniteKernal(@Nullable
                    @Nullable GridSpringResourceContext rsrcCtx)
```
    Parameters:
    
    rsrcCtx - Optional Spring application context.
- Method Detail
  - cluster
```
public IgniteClusterEx cluster()
```
    Gets an instance of IgniteCluster interface.
    
    Specified by:
    
    cluster in interface Ignite
    
    Specified by:
    
    cluster in interface IgniteEx
    
    Returns:
    
    Instance of IgniteCluster interface.
  - localNode
```
public ClusterNode localNode()
```
    Gets local grid node.
    
    Specified by:
    
    localNode in interface IgniteEx
    
    Returns:
    
    Local grid node.
  - compute
```
public IgniteCompute compute()
```
    Gets compute facade over all cluster nodes started in server mode.
    
    Specified by:
    
    compute in interface Ignite
    
    Returns:
    
    Compute instance over all cluster nodes started in server mode.
  - message
```
public IgniteMessaging message()
```
    Gets messaging facade over all cluster nodes.
    
    Specified by:
    
    message in interface Ignite
    
    Returns:
    
    Messaging instance over all cluster nodes.
  - events
```
public IgniteEvents events()
```
    Gets events facade over all cluster nodes.
    
    Specified by:
    
    events in interface Ignite
    
    Returns:
    
    Events instance over all cluster nodes.
  - services
```
public IgniteServices services()
```
    Gets services facade over all cluster nodes started in server mode.
    
    Specified by:
    
    services in interface Ignite
    
    Returns:
    
    Services facade over all cluster nodes started in server mode.
  - executorService
```
public ExecutorService executorService()
```
    Creates a new ExecutorService which will execute all submitted Callable and Runnable jobs on all cluster nodes. This essentially creates a Distributed Thread Pool that can be used as a replacement for local thread pools.
    
    Specified by:
    
    executorService in interface Ignite
    
    Returns:
    
    Grid-enabled ExecutorService.
  - compute
```
public final IgniteCompute compute(ClusterGroup grp)
```
    Gets compute facade over the specified cluster group. All operations on the returned IgniteCompute instance will only include nodes from this cluster group.
    
    Specified by:
    
    compute in interface Ignite
    
    Parameters:
    
    grp - Cluster group.
    
    Returns:
    
    Compute instance over given cluster group.
  - message
```
public final IgniteMessaging message(ClusterGroup prj)
```
    Gets messaging facade over nodes within the cluster group. All operations on the returned IgniteMessaging instance will only include nodes from the specified cluster group.
    
    Specified by:
    
    message in interface Ignite
    
    Parameters:
    
    prj - Cluster group.
    
    Returns:
    
    Messaging instance over given cluster group.
  - events
```
public final IgniteEvents events(ClusterGroup grp)
```
    Gets events facade over nodes within the cluster group. All operations on the returned IgniteEvents instance will only include nodes from the specified cluster group.
    
    Specified by:
    
    events in interface Ignite
    
    Parameters:
    
    grp - Cluster group.
    
    Returns:
    
    Events instance over given cluster group.
  - services
```
public IgniteServices services(ClusterGroup grp)
```
    Gets services facade over nodes within the cluster group. All operations on the returned IgniteMessaging instance will only include nodes from the specified cluster group.
    
    Specified by:
    
    services in interface Ignite
    
    Parameters:
    
    grp - Cluster group.
    
    Returns:
    
    Services functionality over given cluster group.
  - executorService
```
public ExecutorService executorService(ClusterGroup grp)
```
    Creates a new ExecutorService which will execute all submitted Callable and Runnable jobs on nodes in the specified cluster group. This essentially creates a Distributed Thread Pool that can be used as a replacement for local thread pools.
    
    Specified by:
    
    executorService in interface Ignite
    
    Parameters:
    
    grp - Cluster group.
    
    Returns:
    
    ExecutorService which will execute jobs on nodes in given cluster group.
  - name
```
public String name()
```
    Gets the name of the Ignite instance. The name allows having multiple Ignite instances with different names within the same Java VM.
    If default Ignite instance is used, then null is returned. Refer to Ignition documentation for information on how to start named ignite Instances.
    
    Specified by:
    
    name in interface Ignite
    
    Returns:
    
    Name of the Ignite instance, or null for default Ignite instance.
  - isRebalanceEnabled
```
public boolean isRebalanceEnabled()
```
    Get rebalance enabled flag.
    
    Specified by:
    
    isRebalanceEnabled in interface IgniteEx
    
    Returns:
    
    True if rebalance enabled on node, False otherwise.
  - rebalanceEnabled
```
public void rebalanceEnabled(boolean rebalanceEnabled)
```
    Set rebalance enable flag on node.
    
    Specified by:
    
    rebalanceEnabled in interface IgniteEx
    
    Parameters:
    
    rebalanceEnabled - rebalance enabled flag.
  - upTimeFormatted
```
public String upTimeFormatted()
```
    Returns:
    
    String representation of the uptime.
  - vmName
```
public String vmName()
```
    Returns:
    
    Name of the VM.
  - localNodeId
```
public UUID localNodeId()
```
    Returns:
    
    Id of the local node.
  - start
```
public void start(IgniteConfiguration cfg,
                  GridAbsClosure errHnd,
                  WorkersRegistry workerRegistry,
                  Thread.UncaughtExceptionHandler hnd,
                  TimeBag startTimer)
           throws IgniteCheckedException
```
    Parameters:
    
    cfg - Ignite configuration to use.
    
    errHnd - Error handler to use for notification about startup problems.
    
    workerRegistry - Worker registry.
    
    hnd - Default uncaught exception handler used by thread pools.
    
    Throws:
    
    IgniteCheckedException - Thrown in case of any errors.
  - dataStorageReport
```
public void dataStorageReport()
```
  - stop
```
public void stop(boolean cancel)
```
    Stops Ignite instance.
    
    Parameters:
    
    cancel - Whether or not to cancel running jobs.
  - isStopping
```
public boolean isStopping()
```
    Returns:
    
    True if node started shutdown sequence.
  - internalCache
```
public <K,V> GridCacheAdapter<K,V> internalCache(String name)
```
    USED ONLY FOR TESTING.
    
    Type Parameters:
    
    K - Key type.
    
    V - Value type.
    
    Parameters:
    
    name - Cache name.
    
    Returns:
    
    Internal cache instance.
  - context
```
public GridKernalContext context()
```
    It's intended for use by internal marshalling implementation only.
    
    Specified by:
    
    context in interface IgniteEx
    
    Returns:
    
    Kernal context.
  - isJmxRemoteEnabled
```
public boolean isJmxRemoteEnabled()
```
    Whether or not remote JMX management is enabled for this node. Remote JMX management is enabled when the following system property is set:
    - com.sun.management.jmxremote
    Specified by:
    
    isJmxRemoteEnabled in interface IgniteEx
    
    Returns:
    
    True if remote JMX management is enabled - false otherwise.
  - isRestartEnabled
```
public boolean isRestartEnabled()
```
    Whether or not node restart is enabled. Node restart us supported when this node was started with bin/ignite.{sh|bat} script using -r argument. Node can be programmatically restarted using Ignition.restart(boolean)} method.
    
    Specified by:
    
    isRestartEnabled in interface IgniteEx
    
    Returns:
    
    True if restart mode is enabled, false otherwise.
    
    See Also:
    
    Ignition.restart(boolean)
  - configuration
```
public IgniteConfiguration configuration()
```
    Gets the configuration of this Ignite instance.
    NOTE:
    SPIs obtains through this method should never be used directly. SPIs provide internal view on the subsystem and is used internally by Ignite kernal. In rare use cases when access to a specific implementation of this SPI is required - an instance of this SPI can be obtained via this method to check its configuration properties or call other non-SPI methods.
    
    Specified by:
    
    configuration in interface Ignite
    
    Returns:
    
    Ignite configuration instance.
  - log
```
public IgniteLogger log()
```
    Gets grid's logger.
    
    Specified by:
    
    log in interface Ignite
    
    Returns:
    
    Grid's logger.
  - eventUserRecordable
```
public boolean eventUserRecordable(int type)
```
    Checks if the event type is user-recordable.
    
    Specified by:
    
    eventUserRecordable in interface IgniteEx
    
    Parameters:
    
    type - Event type to check.
    
    Returns:
    
    true if passed event should be recorded, false - otherwise.
  - allEventsUserRecordable
```
public boolean allEventsUserRecordable(int[] types)
```
    Checks whether all provided events are user-recordable.
    Note that this method supports only predefined Ignite events.
    
    Specified by:
    
    allEventsUserRecordable in interface IgniteEx
    
    Parameters:
    
    types - Event types.
    
    Returns:
    
    Whether all events are recordable.
  - transactions
```
public IgniteTransactions transactions()
```
    Gets grid transactions facade.
    
    Specified by:
    
    transactions in interface Ignite
    
    Returns:
    
    Grid transactions facade.
  - getCache
```
public <K,V> IgniteInternalCache<K,V> getCache(String name)
```
    Parameters:
    
    name - Cache name.
    
    Returns:
    
    Ignite internal cache instance related to the given name.
  - cache
```
public <K,V> IgniteCache<K,V> cache(String name)
```
    Gets an instance of IgniteCache API for the given name if one is configured or null otherwise. IgniteCache is a fully-compatible implementation of JCache (JSR 107) specification.
    
    Specified by:
    
    cache in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    name - Cache name.
    
    Returns:
    
    Instance of the cache for the specified name or null if one does not exist.
  - createCache
```
public <K,V> IgniteCache<K,V> createCache(CacheConfiguration<K,V> cacheCfg)
```
    Dynamically starts new cache with the given cache configuration.
    If local node is an affinity node, this method will return the instance of started cache. Otherwise, it will create a client cache on local node.
    If a cache with the same name already exists in the grid, an exception will be thrown regardless whether the given configuration matches the configuration of the existing cache or not.
    
    Specified by:
    
    createCache in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    cacheCfg - Cache configuration to use.
    
    Returns:
    
    Instance of started cache.
  - createCaches
```
public Collection<IgniteCache> createCaches(Collection<CacheConfiguration> cacheCfgs)
```
    Dynamically starts new caches with the given cache configurations.
    If local node is an affinity node, this method will return the instance of started caches. Otherwise, it will create a client caches on local node.
    If for one of configurations a cache with the same name already exists in the grid, an exception will be thrown regardless whether the given configuration matches the configuration of the existing cache or not.
    
    Specified by:
    
    createCaches in interface Ignite
    
    Parameters:
    
    cacheCfgs - Collection of cache configuration to use.
    
    Returns:
    
    Collection of instances of started caches.
  - createCache
```
public <K,V> IgniteCache<K,V> createCache(String cacheName)
```
    Dynamically starts new cache using template configuration.
    If local node is an affinity node, this method will return the instance of started cache. Otherwise, it will create a client cache on local node.
    If a cache with the same name already exists in the grid, an exception will be thrown.
    
    Specified by:
    
    createCache in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    cacheName - Cache name.
    
    Returns:
    
    Instance of started cache.
  - getOrCreateCache
```
public <K,V> IgniteCache<K,V> getOrCreateCache(CacheConfiguration<K,V> cacheCfg)
```
    Gets existing cache with the given name or creates new one with the given configuration.
    If a cache with the same name already exist, this method will not check that the given configuration matches the configuration of existing cache and will return an instance of the existing cache.
    
    Specified by:
    
    getOrCreateCache in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    cacheCfg - Cache configuration to use.
    
    Returns:
    
    Existing or newly created cache.
  - getOrCreateCache0
```
public <K,V> IgniteBiTuple<IgniteCache<K,V>,Boolean> getOrCreateCache0(CacheConfiguration<K,V> cacheCfg,
                                                                       boolean sql)
```
    Gets existing cache with the given name or creates new one with the given configuration.
    If a cache with the same name already exists, this method will not check that the given configuration matches the configuration of existing cache and will return an instance of the existing cache.
    
    Specified by:
    
    getOrCreateCache0 in interface IgniteEx
    
    Parameters:
    
    cacheCfg - Cache configuration to use.
    
    sql - true if this call is triggered by SQL command CREATE TABLE, false otherwise.
    
    Returns:
    
    Tuple [Existing or newly created cache; true if cache was newly crated, false otherwise]
  - getOrCreateCaches
```
public Collection<IgniteCache> getOrCreateCaches(Collection<CacheConfiguration> cacheCfgs)
```
    Gets existing caches with the given name or created one with the given configuration.
    If a cache with the same name already exist, this method will not check that the given configuration matches the configuration of existing cache and will return an instance of the existing cache.
    
    Specified by:
    
    getOrCreateCaches in interface Ignite
    
    Parameters:
    
    cacheCfgs - Collection of cache configuration to use.
    
    Returns:
    
    Collection of existing or newly created caches.
  - createCache
```
public <K,V> IgniteCache<K,V> createCache(CacheConfiguration<K,V> cacheCfg,
                                          NearCacheConfiguration<K,V> nearCfg)
```
    Dynamically starts new cache with the given cache configuration.
    If local node is an affinity node, this method will return the instance of started cache. Otherwise, it will create a near cache with the given configuration on local node.
    If a cache with the same name already exists in the grid, an exception will be thrown regardless whether the given configuration matches the configuration of the existing cache or not.
    
    Specified by:
    
    createCache in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    cacheCfg - Cache configuration to use.
    
    nearCfg - Near cache configuration to use on local node in case it is not an affinity node.
    
    Returns:
    
    Instance of started cache.
  - getOrCreateCache
```
public <K,V> IgniteCache<K,V> getOrCreateCache(CacheConfiguration<K,V> cacheCfg,
                                               NearCacheConfiguration<K,V> nearCfg)
```
    Gets existing cache with the given cache configuration or creates one if it does not exist.
    If a cache with the same name already exist, this method will not check that the given configuration matches the configuration of existing cache and will return an instance of the existing cache.
    If local node is not an affinity node and a client cache without near cache has been already started on this node, an exception will be thrown.
    
    Specified by:
    
    getOrCreateCache in interface Ignite
    
    Type Parameters:
    
    K - type.
    
    V - type.
    
    Parameters:
    
    cacheCfg - Cache configuration.
    
    nearCfg - Near cache configuration for client.
    
    Returns:
    
    IgniteCache instance.
  - createNearCache
```
public <K,V> IgniteCache<K,V> createNearCache(String cacheName,
                                              NearCacheConfiguration<K,V> nearCfg)
```
    Starts a near cache on local node if cache was previously started with one of the Ignite.createCache(CacheConfiguration) or Ignite.createCache(CacheConfiguration, NearCacheConfiguration) methods.
    
    Specified by:
    
    createNearCache in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    cacheName - Cache name.
    
    nearCfg - Near cache configuration.
    
    Returns:
    
    Cache instance.
  - getOrCreateNearCache
```
public <K,V> IgniteCache<K,V> getOrCreateNearCache(String cacheName,
                                                   NearCacheConfiguration<K,V> nearCfg)
```
    Gets existing near cache with the given name or creates a new one.
    
    Specified by:
    
    getOrCreateNearCache in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    cacheName - Cache name.
    
    nearCfg - Near configuration.
    
    Returns:
    
    IgniteCache instance.
  - destroyCache
```
public void destroyCache(String cacheName)
```
    Destroys a cache with the given name and cleans data that was written to the cache. The call will deallocate all resources associated with the given cache on all nodes in the cluster. There is no way to undo the action and recover destroyed data.
    All existing instances of IgniteCache will be invalidated, subsequent calls to the API will throw exceptions.
    If a cache with the specified name does not exist in the grid, the operation has no effect.
    
    Specified by:
    
    destroyCache in interface Ignite
    
    Parameters:
    
    cacheName - Cache name to destroy.
  - destroyCache0
```
public boolean destroyCache0(String cacheName,
                             boolean sql)
                      throws javax.cache.CacheException
```
    Stops dynamically started cache.
    
    Specified by:
    
    destroyCache0 in interface IgniteEx
    
    Parameters:
    
    cacheName - Cache name to stop.
    
    sql - true if only cache created with SQL command CREATE TABLE should be affected, false otherwise.
    
    Returns:
    
    true if cache has been stopped as the result of this call, false otherwise.
    
    Throws:
    
    javax.cache.CacheException - If error occurs.
  - destroyCaches
```
public void destroyCaches(Collection<String> cacheNames)
```
    Destroys caches with the given names and cleans data that was written to the caches. The call will deallocate all resources associated with the given caches on all nodes in the cluster. There is no way to undo the action and recover destroyed data.
    All existing instances of IgniteCache will be invalidated, subsequent calls to the API will throw exceptions.
    If the specified collection contains null or an empty value, this method will throw IllegalArgumentException and the caches will not be destroyed.
    If a cache with the specified name does not exist in the grid, the specified value will be skipped.
    
    Specified by:
    
    destroyCaches in interface Ignite
    
    Parameters:
    
    cacheNames - Collection of cache names to destroy.
  - destroyCacheAsync
```
public IgniteInternalFuture<Boolean> destroyCacheAsync(String cacheName,
                                                       boolean sql,
                                                       boolean checkThreadTx)
```
    Parameters:
    
    cacheName - Cache name.
    
    sql - If the cache needs to be destroyed only if it was created by SQL CREATE TABLE command.
    
    checkThreadTx - If true checks that current thread does not have active transactions.
    
    Returns:
    
    Ignite future.
  - destroyCachesAsync
```
public IgniteInternalFuture<?> destroyCachesAsync(Collection<String> cacheNames,
                                                  boolean checkThreadTx)
```
    Parameters:
    
    cacheNames - Collection of cache names.
    
    checkThreadTx - If true checks that current thread does not have active transactions.
    
    Returns:
    
    Ignite future which will be completed when cache is destored.
  - getOrCreateCache
```
public <K,V> IgniteCache<K,V> getOrCreateCache(String cacheName)
```
    Gets existing cache with the given name or creates new one using template configuration.
    
    Specified by:
    
    getOrCreateCache in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    cacheName - Cache name.
    
    Returns:
    
    Existing or newly created cache.
  - getOrCreateCacheAsync
```
public IgniteInternalFuture<?> getOrCreateCacheAsync(String cacheName,
                                                     String templateName,
                                                     CacheConfigurationOverride cfgOverride,
                                                     boolean checkThreadTx)
```
    Parameters:
    
    cacheName - Cache name.
    
    templateName - Template name.
    
    cfgOverride - Cache config properties to override.
    
    checkThreadTx - If true checks that current thread does not have active transactions.
    
    Returns:
    
    Future that will be completed when cache is deployed.
  - addCacheConfiguration
```
public <K,V> void addCacheConfiguration(CacheConfiguration<K,V> cacheCfg)
```
    Adds cache configuration template.
    
    Specified by:
    
    addCacheConfiguration in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    cacheCfg - Cache configuration template.
  - caches
```
public Collection<IgniteCacheProxy<?,?>> caches()
```
    Returns:
    
    Collection of public cache instances.
  - cacheNames
```
public Collection<String> cacheNames()
```
    Gets the collection of names of currently available caches.
    
    Specified by:
    
    cacheNames in interface Ignite
    
    Returns:
    
    Collection of names of currently available caches or an empty collection if no caches are available.
  - utilityCache
```
public <K extends GridCacheUtilityKey,V> IgniteInternalCache<K,V> utilityCache()
```
    Gets utility cache.
    
    Specified by:
    
    utilityCache in interface IgniteEx
    
    Returns:
    
    Utility cache.
  - cachex
```
public <K,V> IgniteInternalCache<K,V> cachex(String name)
```
    Gets the cache instance for the given name if one is configured or null otherwise returning even non-public caches.
    
    Specified by:
    
    cachex in interface IgniteEx
    
    Type Parameters:
    
    K - Key type.
    
    V - Value type.
    
    Parameters:
    
    name - Cache name.
    
    Returns:
    
    Cache instance for given name or null if one does not exist.
  - cachesx
```
public Collection<IgniteInternalCache<?,?>> cachesx(IgnitePredicate<? super IgniteInternalCache<?,?>>[] p)
```
    Gets configured cache instance that satisfy all provided predicates including non-public caches. If no predicates provided - all configured caches will be returned.
    
    Specified by:
    
    cachesx in interface IgniteEx
    
    Parameters:
    
    p - Predicates. If none provided - all configured caches will be returned.
    
    Returns:
    
    Configured cache instances that satisfy all provided predicates.
  - dataStreamer
```
public <K,V> IgniteDataStreamer<K,V> dataStreamer(String cacheName)
```
    Gets a new instance of data streamer associated with given cache name. Data streamer is responsible for loading external data into in-memory data grid. For more information refer to IgniteDataStreamer documentation.
    
    Specified by:
    
    dataStreamer in interface Ignite
    
    Type Parameters:
    
    K - Type of the cache key.
    
    V - Type of the cache value.
    
    Parameters:
    
    cacheName - Cache name.
    
    Returns:
    
    Data streamer.
  - plugin
```
public <T extends IgnitePlugin> T plugin(String name)
                                  throws PluginNotFoundException
```
    Gets an instance of deployed Ignite plugin.
    
    Specified by:
    
    plugin in interface Ignite
    
    Type Parameters:
    
    T - Plugin type.
    
    Parameters:
    
    name - Plugin name.
    
    Returns:
    
    Plugin instance.
    
    Throws:
    
    PluginNotFoundException - If plugin for the given name was not found.
  - binary
```
public IgniteBinary binary()
```
    Gets an instance of IgniteBinary interface.
    
    Specified by:
    
    binary in interface Ignite
    
    Returns:
    
    Instance of IgniteBinary interface.
  - version
```
public IgniteProductVersion version()
```
    Gets Ignite version.
    
    Specified by:
    
    version in interface Ignite
    
    Returns:
    
    Ignite version.
  - latestVersion
```
public String latestVersion()
```
    Get latest version in string form.
    
    Specified by:
    
    latestVersion in interface IgniteEx
    
    Returns:
    
    Latest version.
  - scheduler
```
public IgniteScheduler scheduler()
```
    Gets an instance of cron-based scheduler.
    
    Specified by:
    
    scheduler in interface Ignite
    
    Returns:
    
    Instance of scheduler.
  - close
```
public void close()
           throws IgniteException
```
    Closes this instance of grid. This method is identical to calling G.stop(igniteInstanceName, true).
    The method is invoked automatically on objects managed by the try-with-resources statement.
    
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Ignite
    
    Throws:
    
    IgniteException - If failed to stop grid.
  - affinity
```
public <K> Affinity<K> affinity(String cacheName)
```
    Gets affinity service to provide information about data partitioning and distribution.
    
    Specified by:
    
    affinity in interface Ignite
    
    Type Parameters:
    
    K - Cache key type.
    
    Parameters:
    
    cacheName - Cache name.
    
    Returns:
    
    Affinity.
  - active
```
public boolean active()
```
    Checks Ignite grid is active or not active.
    
    Specified by:
    
    active in interface Ignite
    
    Returns:
    
    True if grid is active. False If grid is not active.
  - active
```
public void active(boolean active)
```
    Changes Ignite grid state to active or inactive.
    NOTE: Deactivation clears in-memory caches (without persistence) including the system caches.
    
    Specified by:
    
    active in interface Ignite
    
    Parameters:
    
    active - If True start activation process. If False start deactivation process.
  - resetLostPartitions
```
public void resetLostPartitions(Collection<String> cacheNames)
```
    Clears partition's lost state and moves caches to a normal mode.
    To avoid permanent data loss for persistent caches it's recommended to return all previously failed baseline nodes to the topology before calling this method.
    
    Specified by:
    
    resetLostPartitions in interface Ignite
    
    Parameters:
    
    cacheNames - Name of the caches for which lost partitions is reset.
  - dataRegionMetrics
```
public Collection<DataRegionMetrics> dataRegionMetrics()
```
    Returns a collection of DataRegionMetrics that reflects page memory usage on this Apache Ignite node instance. Returns the collection that contains the latest snapshots for each memory region configured with configuration on this Ignite node instance.
    
    Specified by:
    
    dataRegionMetrics in interface Ignite
    
    Returns:
    
    Collection of DataRegionMetrics snapshots.
  - dataRegionMetrics
```
@Nullable
public @Nullable DataRegionMetrics dataRegionMetrics(String memPlcName)
```
    Returns the latest DataRegionMetrics snapshot for the memory region of the given name. To get the metrics for the default memory region use DataStorageConfiguration.DFLT_DATA_REG_DEFAULT_NAME as the name or a custom name if the default memory region has been renamed.
    
    Specified by:
    
    dataRegionMetrics in interface Ignite
    
    Parameters:
    
    memPlcName - Name of memory region configured with config.
    
    Returns:
    
    DataRegionMetrics snapshot or null if no memory region is configured under specified name.
  - tracingConfiguration
```
@NotNull
public @NotNull TracingConfigurationManager tracingConfiguration()
```
    Returns the TracingConfigurationManager instance that allows to
    - Configure tracing parameters such as sampling rate for the specific tracing coordinates such as scope and label.
    - Retrieve the most specific tracing parameters for the specified tracing coordinates (scope and label)
    - Restore the tracing parameters for the specified tracing coordinates to the default.
    - List all pairs of tracing configuration coordinates and tracing configuration parameters.
    Specified by:
    
    tracingConfiguration in interface Ignite
    
    Returns:
    
    TracingConfigurationManager instance.
  - encryption
```
public IgniteEncryption encryption()
```
    Gets an instance of IgniteEncryption interface.
    
    Specified by:
    
    encryption in interface Ignite
    
    Returns:
    
    Instance of IgniteEncryption interface.
  - snapshot
```
public IgniteSnapshot snapshot()
```
    Specified by:
    
    snapshot in interface Ignite
    
    Returns:
    
    Snapshot manager.
  - memoryMetrics
```
public Collection<MemoryMetrics> memoryMetrics()
```
    Specified by:
    
    memoryMetrics in interface Ignite
    
    Returns:
    
    Collection of MemoryMetrics snapshots.
  - memoryMetrics
```
@Nullable
public @Nullable MemoryMetrics memoryMetrics(String memPlcName)
```
    Specified by:
    
    memoryMetrics in interface Ignite
    
    Parameters:
    
    memPlcName - Name of the data region.
    
    Returns:
    
    MemoryMetrics snapshot or null if no memory region is configured under specified name.
  - atomicSequence
```
@Nullable
public @Nullable IgniteAtomicSequence atomicSequence(String name,
                                                               long initVal,
                                                               boolean create)
```
    Will get an atomic sequence from cache and create one if it has not been created yet and create flag is true. It will use configuration from IgniteConfiguration.getAtomicConfiguration().
    
    Specified by:
    
    atomicSequence in interface Ignite
    
    Parameters:
    
    name - Sequence name.
    
    initVal - Initial value for sequence. Ignored if create flag is false.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Sequence for the given name.
  - atomicSequence
```
@Nullable
public @Nullable IgniteAtomicSequence atomicSequence(String name,
                                                               AtomicConfiguration cfg,
                                                               long initVal,
                                                               boolean create)
                                                        throws IgniteException
```
    Will get an atomic sequence from cache and create one if it has not been created yet and create flag is true.
    
    Specified by:
    
    atomicSequence in interface Ignite
    
    Parameters:
    
    name - Sequence name.
    
    cfg - Configuration.
    
    initVal - Initial value for sequence. Ignored if create flag is false.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Sequence for the given name.
    
    Throws:
    
    IgniteException - If sequence could not be fetched or created.
  - atomicLong
```
@Nullable
public @Nullable IgniteAtomicLong atomicLong(String name,
                                                       long initVal,
                                                       boolean create)
```
    Will get a atomic long from cache and create one if it has not been created yet and create flag is true.
    
    Specified by:
    
    atomicLong in interface Ignite
    
    Parameters:
    
    name - Name of atomic long.
    
    initVal - Initial value for atomic long. Ignored if create flag is false.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Atomic long.
  - atomicLong
```
@Nullable
public @Nullable IgniteAtomicLong atomicLong(String name,
                                                       AtomicConfiguration cfg,
                                                       long initVal,
                                                       boolean create)
                                                throws IgniteException
```
    Will get a atomic long from cache and create one if it has not been created yet and create flag is true.
    
    Specified by:
    
    atomicLong in interface Ignite
    
    Parameters:
    
    name - Name of atomic long.
    
    cfg - Configuration.
    
    initVal - Initial value for atomic long. Ignored if create flag is false.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Atomic long.
    
    Throws:
    
    IgniteException - If atomic long could not be fetched or created.
  - atomicReference
```
@Nullable
public <T> @Nullable IgniteAtomicReference<T> atomicReference(String name,
                                                                        @Nullable
                                                                        T initVal,
                                                                        boolean create)
```
    Will get a atomic reference from cache and create one if it has not been created yet and create flag is true. It will use configuration from IgniteConfiguration.getAtomicConfiguration().
    
    Specified by:
    
    atomicReference in interface Ignite
    
    Type Parameters:
    
    T - Type of object referred to by this reference.
    
    Parameters:
    
    name - Atomic reference name.
    
    initVal - Initial value for atomic reference. Ignored if create flag is false.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Atomic reference for the given name.
  - atomicReference
```
public <T> IgniteAtomicReference<T> atomicReference(String name,
                                                    AtomicConfiguration cfg,
                                                    @Nullable
                                                    T initVal,
                                                    boolean create)
                                             throws IgniteException
```
    Will get a atomic reference from cache and create one if it has not been created yet and create flag is true.
    
    Specified by:
    
    atomicReference in interface Ignite
    
    Type Parameters:
    
    T - Type of object referred to by this reference.
    
    Parameters:
    
    name - Atomic reference name.
    
    cfg - Configuration.
    
    initVal - Initial value for atomic reference. Ignored if create flag is false.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Atomic reference for the given name.
    
    Throws:
    
    IgniteException - If atomic reference could not be fetched or created.
  - atomicStamped
```
@Nullable
public <T,S> @Nullable IgniteAtomicStamped<T,S> atomicStamped(String name,
                                                                        @Nullable
                                                                        T initVal,
                                                                        @Nullable
                                                                        S initStamp,
                                                                        boolean create)
```
    Will get a atomic stamped from cache and create one if it has not been created yet and create flag is true.
    
    Specified by:
    
    atomicStamped in interface Ignite
    
    Type Parameters:
    
    T - Type of object referred to by this atomic.
    
    S - Type of stamp object.
    
    Parameters:
    
    name - Atomic stamped name.
    
    initVal - Initial value for atomic stamped. Ignored if create flag is false.
    
    initStamp - Initial stamp for atomic stamped. Ignored if create flag is false.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Atomic stamped for the given name.
  - atomicStamped
```
public <T,S> IgniteAtomicStamped<T,S> atomicStamped(String name,
                                                    AtomicConfiguration cfg,
                                                    @Nullable
                                                    T initVal,
                                                    @Nullable
                                                    S initStamp,
                                                    boolean create)
                                             throws IgniteException
```
    Will get a atomic stamped from cache and create one if it has not been created yet and create flag is true.
    
    Specified by:
    
    atomicStamped in interface Ignite
    
    Type Parameters:
    
    T - Type of object referred to by this atomic.
    
    S - Type of stamp object.
    
    Parameters:
    
    name - Atomic stamped name.
    
    cfg - Configuration.
    
    initVal - Initial value for atomic stamped. Ignored if create flag is false.
    
    initStamp - Initial stamp for atomic stamped. Ignored if create flag is false.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Atomic stamped for the given name.
    
    Throws:
    
    IgniteException - If atomic stamped could not be fetched or created.
  - countDownLatch
```
@Nullable
public @Nullable IgniteCountDownLatch countDownLatch(String name,
                                                               int cnt,
                                                               boolean autoDel,
                                                               boolean create)
```
    Gets or creates count down latch. If count down latch is not found in cache and create flag is true, it is created using provided name and count parameter.
    
    Specified by:
    
    countDownLatch in interface Ignite
    
    Parameters:
    
    name - Name of the latch.
    
    cnt - Count for new latch creation. Ignored if create flag is false.
    
    autoDel - True to automatically delete latch from cache when its count reaches zero. Ignored if create flag is false.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Count down latch for the given name.
  - semaphore
```
@Nullable
public @Nullable IgniteSemaphore semaphore(String name,
                                                     int cnt,
                                                     boolean failoverSafe,
                                                     boolean create)
```
    Gets or creates semaphore. If semaphore is not found in cache and create flag is true, it is created using provided name and count parameter.
    
    Specified by:
    
    semaphore in interface Ignite
    
    Parameters:
    
    name - Name of the semaphore.
    
    cnt - Count for new semaphore creation. Ignored if create flag is false.
    
    failoverSafe - True to create failover safe semaphore which means that if any node leaves topology permits already acquired by that node are silently released and become available for alive nodes to acquire. If flag is false then all threads waiting for available permits get interrupted.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    Semaphore for the given name.
  - reentrantLock
```
@Nullable
public @Nullable IgniteLock reentrantLock(String name,
                                                    boolean failoverSafe,
                                                    boolean fair,
                                                    boolean create)
```
    Gets or creates reentrant lock. If reentrant lock is not found in cache and create flag is true, it is created using provided name.
    
    Specified by:
    
    reentrantLock in interface Ignite
    
    Parameters:
    
    name - Name of the lock.
    
    failoverSafe - True to create failover safe lock which means that if any node leaves topology, all locks already acquired by that node are silently released and become available for other nodes to acquire. If flag is false then all threads on other nodes waiting to acquire lock are interrupted.
    
    fair - If True, fair lock will be created.
    
    create - Boolean flag indicating whether data structure should be created if does not exist.
    
    Returns:
    
    ReentrantLock for the given name.
  - queue
```
@Nullable
public <T> @Nullable IgniteQueue<T> queue(String name,
                                                    int cap,
                                                    CollectionConfiguration cfg)
```
    Will get a named queue from cache and create one if it has not been created yet and cfg is not null. If queue is present already, queue properties will not be changed. Use collocation for CacheMode.PARTITIONED caches if you have lots of relatively small queues as it will make fetching, querying, and iteration a lot faster. If you have few very large queues, then you should consider turning off collocation as they simply may not fit in a single node's memory.
    
    Specified by:
    
    queue in interface Ignite
    
    Type Parameters:
    
    T - Type of the elements in queue.
    
    Parameters:
    
    name - Name of queue.
    
    cap - Capacity of queue, 0 for unbounded queue. Ignored if cfg is null.
    
    cfg - Queue configuration if new queue should be created.
    
    Returns:
    
    Queue with given properties.
  - set
```
@Nullable
public <T> @Nullable IgniteSet<T> set(String name,
                                                CollectionConfiguration cfg)
```
    Will get a named set from cache and create one if it has not been created yet and cfg is not null.
    
    Specified by:
    
    set in interface Ignite
    
    Type Parameters:
    
    T - Type of the elements in set.
    
    Parameters:
    
    name - Set name.
    
    cfg - Set configuration if new set should be created.
    
    Returns:
    
    Set with given properties.
  - set
```
public <T> IgniteSet<T> set(String name,
                            int cacheId,
                            boolean collocated,
                            boolean separated)
                     throws IgniteException
```
    Gets a set from cache by known cache id. Does not create new sets.
    
    Specified by:
    
    set in interface IgniteEx
    
    Type Parameters:
    
    T - Type of the elements in set.
    
    Parameters:
    
    name - Set name.
    
    cacheId - Cache id.
    
    collocated - Colocated mode flag.
    
    separated - Separated cache flag.
    
    Returns:
    
    Set with given properties.
    
    Throws:
    
    IgniteException - If set could not be fetched or created.
  - onDisconnected
```
public void onDisconnected()
```
    Method is responsible for handling the EventType.EVT_CLIENT_NODE_DISCONNECTED event. Notify all the GridComponents that the such even has been occurred (e.g. if the local client node disconnected from the cluster components will be notified with a future which will be completed when the client is reconnected).
  - onReconnected
```
public void onReconnected(boolean clusterRestarted)
```
    Parameters:
    
    clusterRestarted - True if all cluster nodes restarted while client was disconnected.
  - readExternal
```
public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException
```
    Specified by:
    
    readExternal in interface Externalizable
    
    Throws:
    
    IOException
    
    ClassNotFoundException
  - writeExternal
```
public void writeExternal(ObjectOutput out)
                   throws IOException
```
    Specified by:
    
    writeExternal in interface Externalizable
    
    Throws:
    
    IOException
  - readResolve
```
protected Object readResolve()
                      throws ObjectStreamException
```
    Returns:
    
    IgniteKernal instance.
    
    Throws:
    
    ObjectStreamException - If failed.
  - dumpDebugInfo
```
public void dumpDebugInfo()
```
    Dumps debug information for the current node.
  - sendIoTest
```
public IgniteInternalFuture sendIoTest(ClusterNode node,
                                       byte[] payload,
                                       boolean procFromNioThread)
```
    Parameters:
    
    node - Node.
    
    payload - Message payload.
    
    procFromNioThread - If true message is processed from NIO thread.
    
    Returns:
    
    Response future.
  - sendIoTest
```
public IgniteInternalFuture sendIoTest(List<ClusterNode> nodes,
                                       byte[] payload,
                                       boolean procFromNioThread)
```
    Parameters:
    
    nodes - Nodes.
    
    payload - Message payload.
    
    procFromNioThread - If true message is processed from NIO thread.
    
    Returns:
    
    Response future.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class IgniteKernal

Starting

Stopping

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

SITE

NL

CFG_VIEW

CFG_VIEW_DESC

DFLT_PERIODIC_STARVATION_CHECK_FREQ

COORDINATOR_PROPERTIES_SEPARATOR

DFLT_LONG_OPERATIONS_DUMP_TIMEOUT

DFLT_LOG_CLASSPATH_CONTENT_ON_STARTUP

Constructor Detail

IgniteKernal

IgniteKernal

Method Detail

cluster

localNode

compute

message

events

services

executorService

compute

message

events

services

executorService

name

isRebalanceEnabled

rebalanceEnabled

upTimeFormatted

vmName

localNodeId

start

dataStorageReport

stop

isStopping

internalCache

context

isJmxRemoteEnabled

isRestartEnabled

configuration

log

eventUserRecordable

allEventsUserRecordable

transactions

getCache

cache

createCache

createCaches

createCache

getOrCreateCache

getOrCreateCache0

getOrCreateCaches

createCache

getOrCreateCache

createNearCache

getOrCreateNearCache

destroyCache

destroyCache0

destroyCaches

destroyCacheAsync

destroyCachesAsync

getOrCreateCache

getOrCreateCacheAsync

addCacheConfiguration

caches

cacheNames

utilityCache

cachex

cachesx

dataStreamer

plugin

binary

version