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/*******************************************************************************
* Copyright (c) 2006, 2008 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.core.internal.utility.jdt;
import org.eclipse.jdt.core.dom.Annotation;
import org.eclipse.jdt.core.dom.Expression;
import org.eclipse.jdt.core.dom.MemberValuePair;
import org.eclipse.jdt.core.dom.SingleMemberAnnotation;
import org.eclipse.jpt.common.core.utility.jdt.DeclarationAnnotationAdapter;
import org.eclipse.jpt.common.core.utility.jdt.ModifiedDeclaration;
/**
* Manipulate an annotation that is embedded as an element within
* another annotation, e.g.
* <pre>
* @Outer(foo=@Inner)
* private int id;
* outerAnnotationAdapter = AnnotationAdapter<@Outer>
* elementName = "foo"
* annotationName = "Inner"
* </pre>
*/
public class NestedDeclarationAnnotationAdapter
extends AbstractNestedDeclarationAnnotationAdapter
{
// ********** constructors **********
/**
* The default element name is <code>value</code>.
*/
public NestedDeclarationAnnotationAdapter(DeclarationAnnotationAdapter outerAnnotationAdapter, String annotationName) {
super(outerAnnotationAdapter, annotationName);
}
/**
* default behavior is to remove the outer annotation when it is empty
*/
public NestedDeclarationAnnotationAdapter(DeclarationAnnotationAdapter outerAnnotationAdapter, String elementName, String annotationName) {
super(outerAnnotationAdapter, elementName, annotationName);
}
// ********** AbstractNestedDeclarationAnnotationAdapter implementation **********
@Override
protected Annotation getAnnotation(Expression value) {
return this.annotationValue(value);
}
@Override
protected Expression buildNewInnerExpression(Annotation inner) {
return inner;
}
/**
* the annotation is the expression itself, so the annotation cannot be
* "removed" from itself - return 'false'
*/
@Override
protected boolean removeAnnotation(ModifiedDeclaration declaration, Annotation outer, Expression value) {
return false;
}
/**
* <pre>
* @Outer("lorem ipsum") => @Outer(@Inner)
* </pre>
*/
@Override
protected void modifyAnnotationValue(SingleMemberAnnotation outer, Annotation inner) {
// replace(?) the current element value
outer.setValue(inner);
}
/**
* Simply set the pair's value.
*/
@Override
protected void modifyMemberValuePair(MemberValuePair pair, Annotation inner) {
pair.setValue(inner);
}
}
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