org.apache.ignite.internal.processors.cache

Interface GridCacheConcurrentMap

All Known Implementing Classes:

GridCacheConcurrentMapImpl, GridCacheLocalConcurrentMap, GridCachePartitionedConcurrentMap, GridDhtLocalPartition, GridNoStorageCacheMap

public interface GridCacheConcurrentMap

Concurrent cache map.

Method Summary

Methods

Modifier and Type	Method and Description
Iterable<GridCacheMapEntry>	allEntries(CacheEntryPredicate... filter)
void	decrementPublicSize(GridCacheEntryEx e) Decrements public size.
Iterable<GridCacheMapEntry>	entries(CacheEntryPredicate... filter)
Set<GridCacheMapEntry>	entrySet(CacheEntryPredicate... filter)
GridCacheMapEntry	getEntry(KeyCacheObject key) Returns the entry associated with the specified key in the HashMap.
void	incrementPublicSize(GridCacheEntryEx e) Increments public size.
Set<KeyCacheObject>	keySet(CacheEntryPredicate... filter)
int	publicSize() Returns the number of publicly available key-value mappings in this map.
GridCacheMapEntry	putEntryIfObsoleteOrAbsent(AffinityTopologyVersion topVer, KeyCacheObject key, CacheObject val, boolean create, boolean touch)
boolean	removeEntry(GridCacheEntryEx entry) Removes passed in entry if it presents in the map.
int	size() Returns the number of key-value mappings in this map.

Method Detail

getEntry

@Nullable
GridCacheMapEntry getEntry(KeyCacheObject key)

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

Parameters:

key - Key.

Returns:

Entry.

putEntryIfObsoleteOrAbsent

@Nullable
GridCacheMapEntry putEntryIfObsoleteOrAbsent(AffinityTopologyVersion topVer,
                                                    KeyCacheObject key,
                                                    @Nullable
                                                    CacheObject val,
                                                    boolean create,
                                                    boolean touch)

Parameters:

topVer - Topology version.

key - Key.

val - Value.

create - Create 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 Will return null if entry is obsolete or absent and create flag is set to false.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.

removeEntry

boolean removeEntry(GridCacheEntryEx entry)

Removes passed in entry if it presents in the map.

Parameters:

entry - Entry to remove.

Returns:

True if remove happened.

size

int size()

Returns the number of key-value mappings in this map. It does not include entries from underlying data store.

Returns:

the number of key-value mappings in this map.

publicSize

int publicSize()

Returns the number of publicly available key-value mappings in this map. It excludes entries that are marked as deleted. It also does not include entries from underlying data store.

Returns:

the number of publicly available key-value mappings in this map.

incrementPublicSize

void incrementPublicSize(GridCacheEntryEx e)

Increments public size.

Parameters:

e - Entry that caused public size change.

decrementPublicSize

void decrementPublicSize(GridCacheEntryEx e)

Decrements public size.

Parameters:

e - Entry that caused public size change.

keySet

Set<KeyCacheObject> keySet(CacheEntryPredicate... filter)

Returns:

Random entry out of hash map.

entries

Iterable<GridCacheMapEntry> entries(CacheEntryPredicate... filter)

Parameters:

filter - Filter.

Returns:

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

allEntries

Iterable<GridCacheMapEntry> allEntries(CacheEntryPredicate... filter)

Parameters:

filter - Filter.

Returns:

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

entrySet

Set<GridCacheMapEntry> entrySet(CacheEntryPredicate... filter)

Parameters:

filter - Filter.

Returns:

Set of the mappings contained in this map.