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com.tangosol.net.cache
Class ReadWriteBackingMap.EvictingBackupMap

java.lang.Object
com.tangosol.util.Base
com.tangosol.util.AbstractKeyBasedMap
com.tangosol.net.cache.ReadWriteBackingMap.EvictingBackupMap

All Implemented Interfaces:

Map

Enclosing class:

ReadWriteBackingMap

public static class ReadWriteBackingMap.EvictingBackupMap

extends AbstractKeyBasedMap

A Map implementation used for a backup map that evicts all data that has been successfully written.

Since:

Coherence 3.4

Nested Class Summary

Nested classes/interfaces inherited from class com.tangosol.util.AbstractKeyBasedMap

AbstractKeyBasedMap.EntrySet, AbstractKeyBasedMap.KeySet, AbstractKeyBasedMap.ValuesCollection

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry

Constructor Summary

ReadWriteBackingMap.EvictingBackupMap()
Default constructor.

Method Summary

Object	get(Object oKey) Returns the value to which this map maps the specified key.
protected Iterator	iterateKeys() Create an iterator over the keys in this Map.
Object	put(Object oKey, Object oValue) Associates the specified value with the specified key in this map.
Object	remove(Object oKey) Removes the mapping for this key from this map if present.

Methods inherited from class com.tangosol.util.AbstractKeyBasedMap

clear, clone, containsKey, containsValue, entrySet, equals, getAll, hashCode, instantiateEntrySet, instantiateKeySet, instantiateValues, isEmpty, keySet, putAll, removeBlind, size, toString, values

Constructor Detail

ReadWriteBackingMap.EvictingBackupMap

public ReadWriteBackingMap.EvictingBackupMap()

Default constructor.

Method Detail

get

public Object get(Object oKey)

Returns the value to which this map maps the specified key.

Specified by:

get in interface Map

Specified by:

get in class AbstractKeyBasedMap

Parameters:

oKey - the key object

Returns:

the value to which this map maps the specified key, or null if the map contains no mapping for this key

See Also:

Map.containsKey(Object)

put

public Object put(Object oKey,
                  Object oValue)

Associates the specified value with the specified key in this map.

Specified by:

put in interface Map

Overrides:

put in class AbstractKeyBasedMap

Parameters:

oKey - key with which the specified value is to be associated

oValue - value to be associated with the specified key

Returns:

previous value associated with specified key, or null if there was no mapping for key

remove

public Object remove(Object oKey)

Removes the mapping for this key from this map if present. Expensive: updates both the underlying cache and the local cache.

Specified by:

remove in interface Map

Overrides:

remove in class AbstractKeyBasedMap

Parameters:

oKey - key whose mapping is to be removed from the map

Returns:

previous value associated with specified key, or null if there was no mapping for key. A null return can also indicate that the map previously associated null with the specified key, if the implementation supports null values.

iterateKeys

protected Iterator iterateKeys()

Create an iterator over the keys in this Map. The Iterator must support remove() if the Map supports removal.

Specified by:

iterateKeys in class AbstractKeyBasedMap

Returns:

a new instance of an Iterator over the keys in this Map

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