org.eclipse.ocl.ecore.delegate

Class AbstractDelegatedBehavior.ExpressionCacheAdapter

java.lang.Object

org.eclipse.emf.common.notify.impl.AdapterImpl

org.eclipse.ocl.ecore.delegate.AbstractDelegatedBehavior.ExpressionCacheAdapter

All Implemented Interfaces:

org.eclipse.emf.common.notify.Adapter, org.eclipse.emf.common.notify.Adapter.Internal

Enclosing class:

AbstractDelegatedBehavior<E extends org.eclipse.emf.ecore.EModelElement,R,F>

protected static class AbstractDelegatedBehavior.ExpressionCacheAdapter
extends org.eclipse.emf.common.notify.impl.AdapterImpl

Caches a single OCL expression in an adapter that can be attached, e.g., to an Ecore object without "modifying" the object to which the adapter gets attached.

Since:

3.1

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.emf.common.notify.Adapter

org.eclipse.emf.common.notify.Adapter.Internal

Field Summary

Fields inherited from class org.eclipse.emf.common.notify.impl.AdapterImpl

target

Constructor Summary

Constructors

Constructor and Description
ExpressionCacheAdapter(OCLExpression expression)

Method Summary

Modifier and Type	Method and Description
static void	cacheOCLExpression(org.eclipse.emf.ecore.EModelElement modelElement, OCLExpression e) Creates an ExpressionCacheAdapter for expression e and adds it to modelElement's adapter list so that getCachedOCLExpression(EModelElement) will return e when called for modelElement.
static OCLExpression	getCachedOCLExpression(org.eclipse.emf.ecore.EModelElement modelElement) Looks for an ExpressionCacheAdapter attached to modelElement.
OCLExpression	getExpression()
boolean	isAdapterForType(java.lang.Object type)

Methods inherited from class org.eclipse.emf.common.notify.impl.AdapterImpl

getTarget, notifyChanged, setTarget, unsetTarget

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionCacheAdapter

public ExpressionCacheAdapter(OCLExpression expression)

Method Detail

cacheOCLExpression

public static void cacheOCLExpression(org.eclipse.emf.ecore.EModelElement modelElement,
                                      OCLExpression e)

Creates an ExpressionCacheAdapter for expression e and adds it to modelElement's adapter list so that getCachedOCLExpression(EModelElement) will return e when called for modelElement. To achieve this, any other ExpressionCacheAdapter in modelElement's adapter list is removed.

Parameters:

e - if null, any existing cache entry is removed and no new entry is created. getCachedOCLExpression(EModelElement) will then return null.

getCachedOCLExpression

public static OCLExpression getCachedOCLExpression(org.eclipse.emf.ecore.EModelElement modelElement)

Looks for an ExpressionCacheAdapter attached to modelElement. If such an adapter is found, its cached expression is returned. The cached expression may be a reserved expression indicating that no OCL expression exists and that an unsuccessful attempt to obtain one has been made before. AbstractDelegatedBehavior.isNoOCLDefinition(OCLExpression) should be used to check for the reserved expression. null is returned if no cached expression is available.

getExpression

public OCLExpression getExpression()

isAdapterForType

public boolean isAdapterForType(java.lang.Object type)

Specified by:

isAdapterForType in interface org.eclipse.emf.common.notify.Adapter

Overrides:

isAdapterForType in class org.eclipse.emf.common.notify.impl.AdapterImpl