| /******************************************************************************* |
| * 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; |
| |
| |
| public class RequiredRelationshipRoleFilter extends ContainerManagedEntityFilter { |
| |
| private static RequiredRelationshipRoleFilter singleton; |
| |
| protected List filterNotcached(ContainerManagedEntity cmp) { |
| List roles = new ArrayList(); |
| Iterator it = getRelationshipRoles(cmp).iterator(); |
| CommonRelationshipRole role; |
| while (it.hasNext()) { |
| role = (CommonRelationshipRole) it.next(); |
| if (shouldAddFilteredResult(role)) roles.add(role); |
| } |
| return roles; |
| } |
| |
| /** |
| * Return true if the multiplicity for @aRole is required. |
| */ |
| protected boolean shouldAddFilteredResult(CommonRelationshipRole aRole) { |
| return aRole.isRequired(); |
| } |
| |
| /** |
| * Insert the method's description here. Creation date: (8/6/2001 11:27:25 |
| * AM) |
| * |
| * @return com.ibm.ejs.models.base.extensions.ejbext.impl.RequiredRelationshipRoleFilter |
| */ |
| public static RequiredRelationshipRoleFilter singleton() { |
| if (singleton == null) singleton = new RequiredRelationshipRoleFilter(); |
| return singleton; |
| } |
| } |