| /******************************************************************************* |
| * Copyright (c) 2001, 2004 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 org.eclipse.jst.j2ee.ejb.CMPAttribute; |
| import org.eclipse.jst.j2ee.ejb.ContainerManagedEntity; |
| /** |
| * This filter will return a subset of the persistentAttributes from the |
| * ContainerManagedEntityExtension that is passed as an argument to the filter |
| * method. It will remove any inherited persistentAttributes and any |
| * persistentAttributes that are held by EjbRelationshipRole objects (including |
| * inherited EjbRelationshipRole attributes). That means the returned list of |
| * CMPAttributes will be attributes that were defined locally minus all |
| * inherited attributes and minus any attributes pointed to by |
| * EjbRelationshipRoles, thus the attributes will only be attributes that were |
| * defined locally by the user. Creation date: (11/28/2000 7:31:42 PM) @author: |
| * Administrator |
| */ |
| public class LocalModelledPersistentAttributeFilter extends SupertypeCMPAttributeFilter { |
| private static LocalModelledPersistentAttributeFilter singleton; |
| /** |
| * Return the proper list of attributes from cmpExt. Return local |
| * attributes minus those added due to Relationship Roles. |
| */ |
| protected java.util.List getSourceAttributes(ContainerManagedEntity cmp) { |
| java.util.List local = null, localRoleAttributes; |
| local = cmp.getFilteredFeatures(LocalPersistentAttributeFilter.singleton()); |
| localRoleAttributes = cmp.getFilteredFeatures(LocalRelationshipRoleAttributeFilter.singleton()); |
| if(local != null) |
| local.removeAll(localRoleAttributes); |
| return local; |
| } |
| /** |
| * Return a boolean indicating whether anAttribute also exists in the |
| * superEntity. For this filter, only the name has to be the same. |
| */ |
| protected boolean isSupertypeAttribute(ContainerManagedEntity superEntity, CMPAttribute anAttribute) { |
| CMPAttribute found = superEntity.getPersistentAttribute(anAttribute.getName()); |
| return found != null; |
| } |
| /** |
| * Insert the method's description here. Creation date: (11/28/2000 5:36:00 |
| * PM) |
| * |
| * @return com.ibm.ejs.models.base.extensions.ejbext.impl.LocalModelledPersistentAttributeFilter |
| */ |
| public static LocalModelledPersistentAttributeFilter singleton() { |
| if (singleton == null) |
| singleton = new LocalModelledPersistentAttributeFilter(); |
| return singleton; |
| } |
| } |