| /******************************************************************************* |
| * Copyright (c) 2001, 2005 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.j2ee.ejb.internal.impl; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.jst.j2ee.ejb.CommonRelationshipRole; |
| import org.eclipse.jst.j2ee.ejb.ContainerManagedEntity; |
| |
| |
| /** |
| * This filter will return a subset of the relationshipRoles (this includes |
| * inherited EjbRelationshipRoles) from the ContainerManagedEntityExtension |
| * that is passed as an argument to the filter method. It will remove any |
| * EjbRelationshipRole that is inherited and it will return the opposite role. |
| * Creation date: (11/28/2000 7:14:57 PM) @author: Administrator |
| */ |
| public class LocalOppositeRelationshipRoleFilter extends ContainerManagedEntityFilter { |
| |
| private static LocalOppositeRelationshipRoleFilter singleton; |
| |
| /** |
| * Return a List with the opposite roles for the local relationship roles. |
| */ |
| public List filter(ContainerManagedEntity cmp) { |
| List oppositeRoles = new ArrayList(); |
| Iterator it = getLocalRelationshipRoles(cmp).iterator(); |
| CommonRelationshipRole role, opposite; |
| while (it != null && it.hasNext()) { |
| role = (CommonRelationshipRole) it.next(); |
| opposite = role.getOppositeAsCommonRole(); |
| if (opposite != null) oppositeRoles.add(opposite); |
| } |
| return oppositeRoles; |
| } |
| |
| /** |
| * Insert the method's description here. Creation date: (11/28/2000 7:15:37 |
| * PM) |
| * |
| * @return com.ibm.ejs.models.base.extensions.ejbext.impl.LocalOppositeRelationshipRoleFilter |
| */ |
| public static LocalOppositeRelationshipRoleFilter singleton() { |
| if (singleton == null) singleton = new LocalOppositeRelationshipRoleFilter(); |
| return singleton; |
| } |
| } |