gate.jape.constraint
Class AnnotationFeatureAccessor

java.lang.Object
  gate.jape.constraint.AnnotationFeatureAccessor

All Implemented Interfaces:

AnnotationAccessor, Serializable

public class AnnotationFeatureAccessor
extends Object
implements AnnotationAccessor

Accessor that returns a named feature value.

Version:

$Revision$

Author:

esword

See Also:

Serialized Form

Field Summary

protected String

featureName

Constructor Summary

AnnotationFeatureAccessor()

AnnotationFeatureAccessor(Object key)

Method Summary

boolean	equals(Object obj)
Object	getKey() Return the key for this accessor.
Object	getValue(Annotation annot, AnnotationSet context) Obtain a named feature
int	hashCode()
void	setKey(Object key) Store a key or name for the accessor to reference when it attempts to obtain the value of an object.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

featureName

protected String featureName

Constructor Detail

AnnotationFeatureAccessor

public AnnotationFeatureAccessor()

AnnotationFeatureAccessor

public AnnotationFeatureAccessor(Object key)

Method Detail

getValue

public Object getValue(Annotation annot,
                       AnnotationSet context)

Obtain a named feature

Specified by:

getValue in interface AnnotationAccessor

context - optional parameter with information about the context in which the annotation has meaning. Normally this would be a Document. Not all accessors will require the context information so it may be null. Some accessor implementations may throw an exception without it.

Returns:

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

setKey

public void setKey(Object key)

Description copied from interface: AnnotationAccessor

Store a key or name for the accessor to reference when it attempts to obtain the value of an object. Different implementors will have different uses for the key. For example, it could be the name of the feature that should be returned. It could also be the name of a property to invoke on the Annotation object.

Specified by:

setKey in interface AnnotationAccessor

getKey

public Object getKey()

Description copied from interface: AnnotationAccessor

Return the key for this accessor.

Specified by:

getKey in interface AnnotationAccessor

Returns: