net.openhft.chronicle.map.impl.stage.map

Class MapEntryOperationsDelegation<K,V,R>

java.lang.Object

net.openhft.chronicle.map.impl.stage.map.MapEntryOperationsDelegation<K,V,R>

All Implemented Interfaces:

HashContext<K>, DefaultValueProvider<K,V>, MapContext<K,V,R>, MapEntryOperations<K,V,R>, SetContext<K,R>, SetEntryOperations<K,R>

public abstract class MapEntryOperationsDelegation<K,V,R>
extends Object
implements MapContext<K,V,R>

Constructor Summary

Constructors

Constructor and Description
MapEntryOperationsDelegation()

Method Summary

Modifier and Type	Method and Description
Data<V>	defaultValue(MapAbsentEntry<K,V> absentEntry) Returns the "nil" value, which should be inserted into the map, in the given absentEntry context.
R	insert(MapAbsentEntry<K,V> absentEntry, Data<V> value) Inserts the new entry into the map, of the key from the given insertion context (absentEntry) and the given value.
R	remove(MapEntry<K,V> entry) Removes the given entry from the map.
R	replaceValue(MapEntry<K,V> entry, Data<V> newValue) Replaces the given entry's value with the new one.

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.openhft.chronicle.map.MapContext

hash, map, wrapValueAsData, wrapValueBytesAsData

Methods inherited from interface net.openhft.chronicle.set.SetContext

set

Methods inherited from interface net.openhft.chronicle.set.SetEntryOperations

insert, remove

Constructor Detail

MapEntryOperationsDelegation

public MapEntryOperationsDelegation()

Method Detail

replaceValue

public R replaceValue(@NotNull
                      MapEntry<K,V> entry,
                      Data<V> newValue)

Description copied from interface: MapEntryOperations

Replaces the given entry's value with the new one. Note: default implementation calls entry.doReplaceValue(newValue) and returns null.

Specified by:

replaceValue in interface MapEntryOperations<K,V,R>

Parameters:

entry - the entry to replace the value in

Returns:

result of operation, understandable by higher-level SPIs, e. g. custom MapMethods implementation

remove

public R remove(@NotNull
                MapEntry<K,V> entry)

Description copied from interface: MapEntryOperations

Removes the given entry from the map. Note: default implementation calls MapEntry.doRemove() on the given entry and returns null.

Specified by:

remove in interface MapEntryOperations<K,V,R>

Parameters:

entry - the entry to remove

Returns:

result of operation, understandable by higher-level SPIs, e. g. custom MapMethods implementation

defaultValue

public Data<V> defaultValue(@NotNull
                            MapAbsentEntry<K,V> absentEntry)

Description copied from interface: DefaultValueProvider

Returns the "nil" value, which should be inserted into the map, in the given absentEntry context. This is primarily used in ChronicleMap.acquireUsing(K, V) operation implementation, i. e. MapMethods.acquireUsing(net.openhft.chronicle.map.MapQueryContext<K, V, R>, net.openhft.chronicle.map.ReturnValue<V>).

The default implementation simply delegates to MapAbsentEntry.defaultValue().

Specified by:

defaultValue in interface DefaultValueProvider<K,V>

insert

public R insert(@NotNull
                MapAbsentEntry<K,V> absentEntry,
                Data<V> value)

Description copied from interface: MapEntryOperations

Inserts the new entry into the map, of the key from the given insertion context (absentEntry) and the given value. Note: default implementation calls absentEntry.doInsert(value) and returns null.

Specified by:

insert in interface MapEntryOperations<K,V,R>

Returns:

result of operation, understandable by higher-level SPIs, e. g. custom MapMethods implementation