org.trimou.engine.context

Class ValueWrapper

java.lang.Object

org.trimou.engine.resource.AbstractReleaseCallbackContainer

org.trimou.engine.context.ValueWrapper

All Implemented Interfaces:

ResolutionContext, ReleaseCallbackContainer

@Internal
public final class ValueWrapper
extends AbstractReleaseCallbackContainer
implements ResolutionContext

Wrapper for the resolved value object and release callbacks. It is not thread-safe. The AbstractReleaseCallbackContainer.release() method must be always called after the wrapper is used, even if the resolved object is null (there might be still some callbacks registered).

Author:

Martin Kouba

Constructor Summary

Constructors

Constructor and Description
ValueWrapper(String key)

Method Summary

Modifier and Type	Method and Description
Object	get()
String	getKey()
int	getKeyPartIndex()
boolean	isNull()

Methods inherited from class org.trimou.engine.resource.AbstractReleaseCallbackContainer

registerReleaseCallback, release

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.trimou.engine.resource.ReleaseCallbackContainer

registerReleaseCallback

Constructor Detail

ValueWrapper

public ValueWrapper(String key)

Parameters:

key -

Method Detail

get

public Object get()

Returns:

the resolved object or null if no such object exists

isNull

public boolean isNull()

Returns:

true if there is no wrapped value (resolved object), false otherwise

getKey

public String getKey()

Specified by:

getKey in interface ResolutionContext

Returns:

the variable tag key

getKeyPartIndex

public int getKeyPartIndex()

Specified by:

getKeyPartIndex in interface ResolutionContext

Returns:

the index of the part of the key which is currently processed