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oracle.odi.domain.xrefs.expression.contexts
Class CachingExpressionContextDecorator

java.lang.Object
oracle.odi.domain.xrefs.expression.contexts.CachingExpressionContextDecorator

All Implemented Interfaces:

IExpressionContext

public class CachingExpressionContextDecorator

extends java.lang.Object

implements IExpressionContext

Implementation of IExpressionContext that provides caching of SnpsExpressionTags for a concrete IExpressionContext instance.

This implementation guarantee that multiple calls to getSnpsExpressionTags(SnpsLanguage) will compute expression tags only once until caller invoke resetCache() or resetCache(SnpsLanguage).

Since:

11.1.1.3.0

Constructor Summary

CachingExpressionContextDecorator(IExpressionContext pContext)
Construct a new CachingExpressionContextDecorator.

Method Summary

com.sunopsis.language.parser.SnpsExpressionTag[]	getSnpsExpressionTags(com.sunopsis.language.SnpsLanguage pSnpsLanguage) Obtains the expression tags relative to this context.
boolean	isCachePopulated(com.sunopsis.language.SnpsLanguage pSnpsLanguage)
void	resetCache() Reset cache of expression tags for all languages.
void	resetCache(com.sunopsis.language.SnpsLanguage pSnpsLanguage) Reset cache of expression tags for the given language.

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingExpressionContextDecorator

public CachingExpressionContextDecorator(IExpressionContext pContext)

Construct a new CachingExpressionContextDecorator.

Parameters:

pContext - the context to manage caching for

Method Detail

getSnpsExpressionTags

public com.sunopsis.language.parser.SnpsExpressionTag[] getSnpsExpressionTags(com.sunopsis.language.SnpsLanguage pSnpsLanguage)

Description copied from interface: IExpressionContext

Obtains the expression tags relative to this context.

Specified by:

getSnpsExpressionTags in interface IExpressionContext

Parameters:

pSnpsLanguage - the language that will be used when manipulating the expression tags (i.e. when building the Expression)

Returns:

an array of expression tags

isCachePopulated

public boolean isCachePopulated(com.sunopsis.language.SnpsLanguage pSnpsLanguage)

resetCache

public void resetCache(com.sunopsis.language.SnpsLanguage pSnpsLanguage)

Reset cache of expression tags for the given language.

Parameters:

pSnpsLanguage - the language

resetCache

public void resetCache()

Reset cache of expression tags for all languages.

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