Package org.eclipse.emf.compare.internal.adapterfactory.context

Class ContextUtil

java.lang.Object

org.eclipse.emf.compare.internal.adapterfactory.context.ContextUtil

public final class ContextUtil
extends Object

Utility class for evaluating context testers in adapter factory descriptors.

Since:

4.3

Method Summary

Modifier and Type	Method	Description
static boolean	apply(ComposedAdapterFactory.Descriptor adapterFactoryDescriptor, Map<Object,Object> context)	Returns whether the adapter factory should be applied in the given context.
static boolean	isNullContext(Map<Object,Object> context)	Evaluates whether the given context is a null context, i.e., the context itself is null, it has no entries or all its values are null.

Methods inherited from class java.lang.Object

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

Method Details

apply

public static boolean apply(ComposedAdapterFactory.Descriptor adapterFactoryDescriptor,
 Map<Object,Object> context)

Returns whether the adapter factory should be applied in the given context.

Parameters:

adapterFactoryDescriptor - the ComposedAdapterFactory.Descriptor containing the adapter factory and possibly a context tester

context - the context

Returns:

false if the descriptor's context tester indicates no responsibility for the given comparison, true otherwise.

See Also:

• IContextTester.apply(Map)

isNullContext

public static boolean isNullContext(Map<Object,Object> context)

Evaluates whether the given context is a null context, i.e., the context itself is null, it has no entries or all its values are null.

Parameters:

context - the context

Returns:

true if the context is null, empty or all its values are null, false otherwise.