| /******************************************************************************* |
| * 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 not part of the key. Creation date: (11/28/2000 |
| * 7:14:57 PM) @author: Administrator |
| */ |
| public class KeyRelationshipRoleFilter extends ContainerManagedEntityFilter { |
| |
| private static KeyRelationshipRoleFilter singleton; |
| |
| /** |
| * filter method comment. |
| */ |
| public java.util.List filter(ContainerManagedEntity cmp) { |
| List keyRoles = new ArrayList(); |
| Iterator it = getRelationshipRoles(cmp).iterator(); |
| CommonRelationshipRole role; |
| while (it.hasNext()) { |
| role = (CommonRelationshipRole) it.next(); |
| if (role.isKey()) keyRoles.add(role); |
| } |
| return keyRoles; |
| } |
| |
| /** |
| * Insert the method's description here. Creation date: (11/28/2000 7:15:37 |
| * PM) |
| * |
| * @return com.ibm.ejs.models.base.extensions.ejbext.impl.KeyRelationshipRoleFilter |
| */ |
| public static KeyRelationshipRoleFilter singleton() { |
| if (singleton == null) singleton = new KeyRelationshipRoleFilter(); |
| return singleton; |
| } |
| } |