jpa/plugins/org.eclipse.jpt.eclipselink.core/src/org/eclipse/jpt/eclipselink/core/internal/context/java/AbstractEclipseLinkJavaPersistentAttribute.java

/*******************************************************************************
 * Copyright (c) 2009 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.eclipselink.core.internal.context.java;

import org.eclipse.jpt.core.context.PersistentType;
import org.eclipse.jpt.core.internal.context.java.AbstractJavaPersistentAttribute;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentAttribute;
import org.eclipse.jpt.utility.internal.CollectionTools;

/**
 * 
 */
public abstract class AbstractEclipseLinkJavaPersistentAttribute
	extends AbstractJavaPersistentAttribute
{

	protected AbstractEclipseLinkJavaPersistentAttribute(PersistentType parent, JavaResourcePersistentAttribute jrpa) {
		super(parent, jrpa);
	}

	/**
	 * Return whether the specified type is a subclass of java.util.Date or java.util.Calendar.
	 */
	public boolean typeIsDateOrCalendar() {
		return this.resourcePersistentAttribute.typeIsSubTypeOf(DATE_TYPE_NAME)
				|| this.resourcePersistentAttribute.typeIsSubTypeOf(CALENDAR_TYPE_NAME);
	}
	protected static final String DATE_TYPE_NAME = java.util.Date.class.getName();
	protected static final String CALENDAR_TYPE_NAME = java.util.Calendar.class.getName();

	public boolean typeIsSerializable() {
		return this.resourcePersistentAttribute.typeIsVariablePrimitive()
				|| this.resourcePersistentAttribute.typeIsSubTypeOf(SERIALIZABLE_TYPE_NAME);
	}

	public boolean typeIsValidForVariableOneToOne() {
		return this.resourcePersistentAttribute.typeIsInterface()
				&& this.interfaceIsValidForVariableOneToOne(this.resourcePersistentAttribute.getTypeName());
	}

	protected boolean interfaceIsValidForVariableOneToOne(String interfaceName) {
		return ! this.interfaceIsInvalidForVariableOneToOne(interfaceName);
	}

	protected boolean interfaceIsInvalidForVariableOneToOne(String interfaceName) {
		return CollectionTools.contains(INVALID_VARIABLE_ONE_TO_ONE_INTERFACE_NAMES, interfaceName);
	}

	// TODO we could probably add more interfaces to this list...
	private static final String[] INVALID_VARIABLE_ONE_TO_ONE_INTERFACE_NAMES =
		CollectionTools.add(CONTAINER_TYPE_NAMES, "org.eclipse.persistence.indirection.ValueHolderInterface"); //$NON-NLS-1$

}