org.apache.ignite.internal.processors.cache

Class GridCacheConcurrentMapImpl

java.lang.Object

org.apache.ignite.internal.processors.cache.GridCacheConcurrentMapImpl

All Implemented Interfaces:

GridCacheConcurrentMap

Direct Known Subclasses:

GridCacheLocalConcurrentMap, GridDhtLocalPartition

public abstract class GridCacheConcurrentMapImpl
extends Object
implements GridCacheConcurrentMap

Implementation of concurrent cache map.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.ignite.internal.processors.cache.GridCacheConcurrentMap

GridCacheConcurrentMap.CacheMapHolder

Constructor Summary

Constructors

Constructor and Description
GridCacheConcurrentMapImpl(GridCacheMapEntryFactory factory) Creates a new, empty map with the specified initial capacity.

Method Summary

Modifier and Type	Method and Description
Collection<GridCacheMapEntry>	entries(int cacheId, CacheEntryPredicate... filter)
protected abstract @Nullable GridCacheConcurrentMap.CacheMapHolder	entriesMap(GridCacheContext cctx)
protected abstract @Nullable GridCacheConcurrentMap.CacheMapHolder	entriesMapIfExists(Integer cacheId)
Set<GridCacheMapEntry>	entrySet(int cacheId, CacheEntryPredicate... filter)
@Nullable GridCacheMapEntry	getEntry(GridCacheContext ctx, KeyCacheObject key) Returns the entry associated with the specified key in the HashMap.
protected GridCacheMapEntry	putEntryIfObsoleteOrAbsent(@Nullable GridCacheConcurrentMap.CacheMapHolder hld, GridCacheContext ctx, AffinityTopologyVersion topVer, KeyCacheObject key, boolean create, boolean skipReserve)
GridCacheMapEntry	putEntryIfObsoleteOrAbsent(GridCacheContext ctx, AffinityTopologyVersion topVer, KeyCacheObject key, boolean create, boolean skipReserve)
protected void	release()
protected void	release(int sizeChange, GridCacheConcurrentMap.CacheMapHolder hld, GridCacheEntryEx e)
boolean	removeEntry(GridCacheEntryEx entry) Removes passed in entry if it presents in the map.
protected boolean	reserve()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.ignite.internal.processors.cache.GridCacheConcurrentMap

decrementPublicSize, incrementPublicSize, internalSize, publicSize

Constructor Detail

GridCacheConcurrentMapImpl

public GridCacheConcurrentMapImpl(GridCacheMapEntryFactory factory)

Creates a new, empty map with the specified initial capacity.

Parameters:

factory - Entry factory.

Throws:

IllegalArgumentException - if the initial capacity is negative.

Method Detail

getEntry

@Nullable
public @Nullable GridCacheMapEntry getEntry(GridCacheContext ctx,
                                                      KeyCacheObject key)

Returns the entry associated with the specified key in the HashMap. Returns null if the HashMap contains no mapping for this key.

Specified by:

getEntry in interface GridCacheConcurrentMap

Parameters:

ctx - Cache context.

key - Key.

Returns:

Entry.

putEntryIfObsoleteOrAbsent

public GridCacheMapEntry putEntryIfObsoleteOrAbsent(GridCacheContext ctx,
                                                    AffinityTopologyVersion topVer,
                                                    KeyCacheObject key,
                                                    boolean create,
                                                    boolean skipReserve)

Specified by:

putEntryIfObsoleteOrAbsent in interface GridCacheConcurrentMap

Parameters:

ctx - Cache context.

topVer - Topology version.

key - Key.

create - Create flag.

skipReserve - Skip partition reservation flag.

Returns:

Existing or new GridCacheMapEntry. Will return null if entry is obsolete or absent and create flag is set to false. Will also return null if create flag is set to true, but entry couldn't be created.

putEntryIfObsoleteOrAbsent

protected final GridCacheMapEntry putEntryIfObsoleteOrAbsent(@Nullable
                                                             @Nullable GridCacheConcurrentMap.CacheMapHolder hld,
                                                             GridCacheContext ctx,
                                                             AffinityTopologyVersion topVer,
                                                             KeyCacheObject key,
                                                             boolean create,
                                                             boolean skipReserve)

Parameters:

hld - Holder.

ctx - Context.

topVer - Topology version.

key - Key.

create - Create flag.

skipReserve - True if a partition reservation should be skipped.

entriesMap

@Nullable
protected abstract @Nullable GridCacheConcurrentMap.CacheMapHolder entriesMap(GridCacheContext cctx)

Parameters:

cctx - Cache context.

Returns:

Map for given cache ID.

entriesMapIfExists

@Nullable
protected abstract @Nullable GridCacheConcurrentMap.CacheMapHolder entriesMapIfExists(Integer cacheId)

Parameters:

cacheId - Cache ID.

Returns:

Map for given cache ID.

reserve

protected boolean reserve()

release

protected void release()

release

protected void release(int sizeChange,
                       GridCacheConcurrentMap.CacheMapHolder hld,
                       GridCacheEntryEx e)

Parameters:

sizeChange - Size delta.

hld - Map holder.

e - Map entry.

removeEntry

public boolean removeEntry(GridCacheEntryEx entry)

Removes passed in entry if it presents in the map.

Specified by:

removeEntry in interface GridCacheConcurrentMap

Parameters:

entry - Entry to remove.

Returns:

True if remove happened.

entries

public Collection<GridCacheMapEntry> entries(int cacheId,
                                             CacheEntryPredicate... filter)

Specified by:

entries in interface GridCacheConcurrentMap

Parameters:

cacheId - Cache ID.

filter - Filter.

Returns:

Iterable of the mappings contained in this map, excluding entries in unvisitable state.

entrySet

public Set<GridCacheMapEntry> entrySet(int cacheId,
                                       CacheEntryPredicate... filter)

Specified by:

entrySet in interface GridCacheConcurrentMap

Parameters:

cacheId - Cache ID.

filter - Filter.

Returns:

Set of the mappings contained in this map.