jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/context/base/IJoinColumn.java

/*******************************************************************************
 * Copyright (c) 2007 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.context.base;

public interface IJoinColumn extends IAbstractColumn, IAbstractJoinColumn
{
	IJoinColumn.Owner owner();

	/**
	 * interface allowing join columns to be used in multiple places
	 * (e.g. 1:1 mappings and join tables)
	 */
	interface Owner extends IAbstractJoinColumn.Owner, IAbstractColumn.Owner
	{
		/**
		 * return whether the specified table cannot be explicitly specified
		 * in the join column's 'table' element
		 */
		boolean tableNameIsInvalid(String tableName);

		/**
		 * return whether the join column's table can be specified explicitly
		 */
		boolean tableIsAllowed();

		/**
		 * return the entity referenced by the join column
		 */
		IEntity targetEntity();

		/**
		 * return the join column's attribute name
		 */
		String attributeName();

		/**
		 * return the relationship mapping for this join column
		 */
		IRelationshipMapping relationshipMapping();
	}
}