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/*******************************************************************************
* Copyright (c) 2007, 2010 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.core.internal.resource.java.source;
import java.util.HashSet;
import java.util.Iterator;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.IBinding;
import org.eclipse.jdt.core.dom.Modifier;
import org.eclipse.jpt.common.core.utility.jdt.Member;
import org.eclipse.jpt.core.resource.java.Annotation;
import org.eclipse.jpt.core.resource.java.JavaResourceNode;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentMember;
import org.eclipse.jpt.utility.Filter;
import org.eclipse.jpt.utility.internal.CollectionTools;
import org.eclipse.jpt.utility.internal.iterators.FilteringIterator;
/**
* Java source persistent member (annotations, "persistable")
*/
abstract class SourcePersistentMember<M extends Member>
extends SourceAnnotatedElement<M>
implements JavaResourcePersistentMember
{
/**
* We can cache this setting because its value is not affected by any API
* calls - it can only be affected by changes to the Java source.
* @see org.eclipse.jpt.common.core.internal.utility.jdt.JPTTools#typeIsPersistable(org.eclipse.jpt.common.core.internal.utility.jdt.JPTTools.TypeAdapter)
*/
boolean persistable;
boolean final_; // 'final' is a reserved word
// ********** construction/initialization **********
SourcePersistentMember(JavaResourceNode parent, M member) {
super(parent, member);
}
@Override
public void initialize(CompilationUnit astRoot) {
super.initialize(astRoot);
this.persistable = this.buildPersistable(astRoot);
IBinding binding = this.annotatedElement.getBinding(astRoot);
this.final_ = this.buildFinal(binding);
}
@Override
public void synchronizeWith(CompilationUnit astRoot) {
super.synchronizeWith(astRoot);
this.syncPersistable(this.buildPersistable(astRoot));
IBinding binding = this.annotatedElement.getBinding(astRoot);
this.syncFinal(this.buildFinal(binding));
}
// ********** annotations **********
public Annotation setPrimaryAnnotation(String primaryAnnotationName, Iterable<String> supportingAnnotationNames) {
HashSet<String> annotationNames = CollectionTools.set(supportingAnnotationNames);
if (primaryAnnotationName != null) {
annotationNames.add(primaryAnnotationName);
}
for (Annotation annotation : this.getAnnotations()) {
if ( ! annotationNames.contains(annotation.getAnnotationName())) {
this.annotations.remove(annotation);
annotation.removeAnnotation();
}
}
Annotation newPrimaryAnnotation = null;
if ((primaryAnnotationName != null) && (this.getAnnotation(primaryAnnotationName) == null)) {
newPrimaryAnnotation = this.buildAnnotation(primaryAnnotationName);
this.annotations.add(newPrimaryAnnotation);
newPrimaryAnnotation.newAnnotation();
}
return newPrimaryAnnotation;
}
// ********** persistable **********
public boolean isPersistable() {
return this.persistable;
}
private void syncPersistable(boolean astPersistable) {
boolean old = this.persistable;
this.persistable = astPersistable;
this.firePropertyChanged(PERSISTABLE_PROPERTY, old, astPersistable);
}
private boolean buildPersistable(CompilationUnit astRoot) {
return this.annotatedElement.isPersistable(astRoot);
}
// ***** final
public boolean isFinal() {
return this.final_;
}
private void syncFinal(boolean astFinal) {
boolean old = this.final_;
this.final_ = astFinal;
this.firePropertyChanged(FINAL_PROPERTY, old, astFinal);
}
private boolean buildFinal(IBinding binding) {
return (binding == null) ? false : Modifier.isFinal(binding.getModifiers());
}
// ********** miscellaneous **********
public boolean isFor(String memberName, int occurrence) {
return this.annotatedElement.matches(memberName, occurrence);
}
public void resolveTypes(CompilationUnit astRoot) {
this.syncPersistable(this.buildPersistable(astRoot));
}
/**
* convenience method
*/
<T extends JavaResourcePersistentMember> Iterator<T> persistableMembers(Iterator<T> members) {
@SuppressWarnings("unchecked")
Filter<T> filter = (Filter<T>) PERSISTABLE_MEMBER_FILTER;
return new FilteringIterator<T>(members, filter);
}
}
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