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/*******************************************************************************
* Copyright (c) 2012 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.jaxb.eclipselink.core.internal.context.java;
import java.util.StringTokenizer;
import org.eclipse.jpt.common.utility.internal.iterables.ArrayIterable;
import org.eclipse.jpt.common.utility.internal.iterables.CompositeIterable;
import org.eclipse.jpt.jaxb.core.context.JaxbPersistentAttribute;
import org.eclipse.jpt.jaxb.core.context.java.DefaultJavaAttributeMappingDefinition;
import org.eclipse.jpt.jaxb.core.internal.context.java.JavaXmlAttributeMappingDefinition;
import org.eclipse.jpt.jaxb.eclipselink.core.resource.java.ELJaxb;
import org.eclipse.jpt.jaxb.eclipselink.core.resource.java.XmlPathAnnotation;
public class ELJavaXmlAttributeMappingDefinition
extends JavaXmlAttributeMappingDefinition
implements DefaultJavaAttributeMappingDefinition {
// singleton
private static final ELJavaXmlAttributeMappingDefinition INSTANCE =
new ELJavaXmlAttributeMappingDefinition();
private static final String[] SUPPORTING_ANNOTATION_NAMES =
{
ELJaxb.XML_KEY,
ELJaxb.XML_PATH };
/**
* Return the singleton.
*/
public static DefaultJavaAttributeMappingDefinition instance() {
return INSTANCE;
}
/**
* Enforce singleton usage
*/
protected ELJavaXmlAttributeMappingDefinition() {
super();
}
@Override
public Iterable<String> getSupportingAnnotationNames() {
return new CompositeIterable<String>(
super.getSupportingAnnotationNames(),
new ArrayIterable<String>(SUPPORTING_ANNOTATION_NAMES));
}
public boolean isDefault(JaxbPersistentAttribute persistentAttribute) {
// test whether annotated with @XmlPath, and if so, if last segment starts with "@"
// (presence of "@" elsewhere may be a node select clause)
XmlPathAnnotation xmlPathAnnotation =
(XmlPathAnnotation) persistentAttribute.getJavaResourceAttribute().getAnnotation(0, ELJaxb.XML_PATH);
if (xmlPathAnnotation == null) {
return false;
}
String value = xmlPathAnnotation.getValue();
if (value == null) {
return false;
}
StringTokenizer tokenizer = new StringTokenizer(value, "/");
while (tokenizer.hasMoreTokens()) {
String token = tokenizer.nextToken();
if (! tokenizer.hasMoreTokens()) {
return token.startsWith("@");
}
}
return false;
}
}
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