/*******************************************************************************
 * Copyright (c) 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.eclipselink.core.context;


/**
 * 
 * 
 * Provisional API: This interface is part of an interim API that is still
 * under development and expected to change significantly before reaching
 * stability. It is available at this early stage to solicit feedback from
 * pioneering adopters on the understanding that any code that uses this API
 * will almost certainly be broken (repeatedly) as the API evolves.
 * 
 * @version 2.1
 * @since 2.1
 */
public enum ExistenceType {

    CHECK_CACHE,
    CHECK_DATABASE,
    ASSUME_EXISTENCE,
    ASSUME_NON_EXISTENCE;
	

	public static ExistenceType fromJavaResourceModel(org.eclipse.jpt.eclipselink.core.resource.java.ExistenceType javaExistenceType) {
		if (javaExistenceType == null) {
			return null;
		}
		switch (javaExistenceType) {
			case CHECK_CACHE:
				return CHECK_CACHE;
			case CHECK_DATABASE:
				return CHECK_DATABASE;
			case ASSUME_EXISTENCE:
				return ASSUME_EXISTENCE;
			case ASSUME_NON_EXISTENCE:
				return ASSUME_NON_EXISTENCE;
			default:
				throw new IllegalArgumentException("unknown existence type: " + javaExistenceType); //$NON-NLS-1$
		}
	}

	public static org.eclipse.jpt.eclipselink.core.resource.java.ExistenceType toJavaResourceModel(ExistenceType existenceType) {
		if (existenceType == null) {
			return null;
		}
		switch (existenceType) {
			case CHECK_CACHE:
				return org.eclipse.jpt.eclipselink.core.resource.java.ExistenceType.CHECK_CACHE;
			case CHECK_DATABASE:
				return org.eclipse.jpt.eclipselink.core.resource.java.ExistenceType.CHECK_DATABASE;
			case ASSUME_EXISTENCE:
				return org.eclipse.jpt.eclipselink.core.resource.java.ExistenceType.ASSUME_EXISTENCE;
			case ASSUME_NON_EXISTENCE:
				return org.eclipse.jpt.eclipselink.core.resource.java.ExistenceType.ASSUME_NON_EXISTENCE;
			default:
				throw new IllegalArgumentException("unknown existence type: " + existenceType); //$NON-NLS-1$
		}
	}
	

	public static ExistenceType fromOrmResourceModel(org.eclipse.jpt.eclipselink.core.resource.orm.ExistenceType ormExistenceType) {
		if (ormExistenceType == null) {
			return null;
		}
		switch (ormExistenceType) {
			case CHECK_CACHE:
				return CHECK_CACHE;
			case CHECK_DATABASE:
				return CHECK_DATABASE;
			case ASSUME_EXISTENCE:
				return ASSUME_EXISTENCE;
			case ASSUME_NON_EXISTENCE:
				return ASSUME_NON_EXISTENCE;
			default:
				throw new IllegalArgumentException("unknown existence type: " + ormExistenceType); //$NON-NLS-1$
		}
	}
	
	public static org.eclipse.jpt.eclipselink.core.resource.orm.ExistenceType toOrmResourceModel(ExistenceType existenceType) {
		if (existenceType == null) {
			return null;
		}
		switch (existenceType) {
			case CHECK_CACHE:
				return org.eclipse.jpt.eclipselink.core.resource.orm.ExistenceType.CHECK_CACHE;
			case CHECK_DATABASE:
				return org.eclipse.jpt.eclipselink.core.resource.orm.ExistenceType.CHECK_DATABASE;
			case ASSUME_EXISTENCE:
				return org.eclipse.jpt.eclipselink.core.resource.orm.ExistenceType.ASSUME_EXISTENCE;
			case ASSUME_NON_EXISTENCE:
				return org.eclipse.jpt.eclipselink.core.resource.orm.ExistenceType.ASSUME_NON_EXISTENCE;
			default:
				throw new IllegalArgumentException("unknown existence type: " + existenceType); //$NON-NLS-1$
		}
	}

}