/*******************************************************************************
* Copyright (c) 2009, 2011 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.jpa.core.internal.jpa2.resource.java.source;

import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.common.core.internal.utility.jdt.AnnotatedElementAnnotationElementAdapter;
import org.eclipse.jpt.common.core.internal.utility.jdt.EnumDeclarationAnnotationElementAdapter;
import org.eclipse.jpt.common.core.resource.java.JavaResourceAnnotatedElement;
import org.eclipse.jpt.common.core.utility.TextRange;
import org.eclipse.jpt.common.core.utility.jdt.AnnotatedElement;
import org.eclipse.jpt.common.core.utility.jdt.AnnotationElementAdapter;
import org.eclipse.jpt.common.core.utility.jdt.DeclarationAnnotationElementAdapter;
import org.eclipse.jpt.common.core.utility.jdt.IndexedAnnotationAdapter;
import org.eclipse.jpt.common.core.utility.jdt.IndexedDeclarationAnnotationAdapter;
import org.eclipse.jpt.jpa.core.internal.resource.java.source.SourceNamedQueryAnnotation;
import org.eclipse.jpt.jpa.core.jpa2.resource.java.JPA2_0;
import org.eclipse.jpt.jpa.core.jpa2.resource.java.LockModeType_2_0;
import org.eclipse.jpt.jpa.core.jpa2.resource.java.NamedQuery2_0Annotation;

/**
 * <code>javax.persistence.NamedQuery</code>
 */
public final class SourceNamedQuery2_0Annotation
	extends SourceNamedQueryAnnotation
	implements NamedQuery2_0Annotation
{
	private DeclarationAnnotationElementAdapter<String> lockModeDeclarationAdapter;
	private AnnotationElementAdapter<String> lockModeAdapter;
	private LockModeType_2_0 lockMode;

	public static SourceNamedQuery2_0Annotation buildSourceNamedQueryAnnotation(JavaResourceAnnotatedElement parent, AnnotatedElement annotatedElement, int index) {
		IndexedDeclarationAnnotationAdapter idaa = buildNamedQueryDeclarationAnnotationAdapter(index);
		IndexedAnnotationAdapter iaa = buildNamedQueryAnnotationAdapter(annotatedElement, idaa);
		return new SourceNamedQuery2_0Annotation(
			parent,
			annotatedElement,
			idaa,
			iaa);
	}

	private SourceNamedQuery2_0Annotation(
			JavaResourceAnnotatedElement parent,
			AnnotatedElement annotatedElement,
			IndexedDeclarationAnnotationAdapter daa,
			IndexedAnnotationAdapter annotationAdapter) {
		super(parent, annotatedElement, daa, annotationAdapter);
		this.lockModeDeclarationAdapter = this.buildLockModeDeclarationAdapter();
		this.lockModeAdapter = this.buildLockModeAdapter();
	}

	private String getLockModeElementName() {
		return JPA2_0.NAMED_QUERY__LOCK_MODE;
	}

	@Override
	public void initialize(CompilationUnit astRoot) {
		super.initialize(astRoot);
		this.lockMode = this.buildLockMode(astRoot);
	}

	@Override
	public void synchronizeWith(CompilationUnit astRoot) {
		super.synchronizeWith(astRoot);
		this.syncLockMode(this.buildLockMode(astRoot));
	}


	// ********** NamedQuery2_0Annotation implementation **********

	public LockModeType_2_0 getLockMode() {
		return this.lockMode;
	}

	public void setLockMode(LockModeType_2_0 lockMode) {
		if (this.attributeValueHasChanged(this.lockMode, lockMode)) {
			this.lockMode = lockMode;
			this.lockModeAdapter.setValue(LockModeType_2_0.toJavaAnnotationValue(lockMode));
		}
	}

	private void syncLockMode(LockModeType_2_0 astLockMode) {
		LockModeType_2_0 old = this.lockMode;
		this.lockMode = astLockMode;
		this.firePropertyChanged(LOCK_MODE_PROPERTY, old, astLockMode);
	}

	private LockModeType_2_0 buildLockMode(CompilationUnit astRoot) {
		return LockModeType_2_0.fromJavaAnnotationValue(this.lockModeAdapter.getValue(astRoot));
	}

	public TextRange getLockModeTextRange(CompilationUnit astRoot) {
		return this.getElementTextRange(this.lockModeDeclarationAdapter, astRoot);
	}

	public boolean lockModeTouches(int pos, CompilationUnit astRoot) {
		return this.elementTouches(this.lockModeDeclarationAdapter, pos, astRoot);
	}

	private DeclarationAnnotationElementAdapter<String> buildLockModeDeclarationAdapter() {
		return new EnumDeclarationAnnotationElementAdapter(this.daa, this.getLockModeElementName());
	}

	private AnnotationElementAdapter<String> buildLockModeAdapter() {
		return new AnnotatedElementAnnotationElementAdapter<String>(this.annotatedElement, this.lockModeDeclarationAdapter);
	}
	

	// ********** misc **********

	@Override
	public boolean isUnset() {
		return super.isUnset() &&
				(this.lockMode == null);
	}

}