| /******************************************************************************* |
| * 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.List; |
| |
| import org.eclipse.jst.j2ee.ejb.ContainerManagedEntity; |
| |
| /** |
| * This filter will return a subset of the keyAttributes from the |
| * ContainerManagedEntityExtension that is passed as an argument to the filter method. |
| * It will remove any keyAttributes that are held by EjbRelationshipRole objects (including |
| * inherited EjbRelationshipRole attributes). |
| * That means the returned list of CMPAttributes will be key attributes that were defined locally |
| * and all inherited key attributes minus any key attributes pointed to by EjbRelationshipRoles, thus the |
| * key attributes will only be key attributes that were defined by the user. |
| * Creation date: (11/28/2000 8:09:10 PM) |
| * @author: Administrator |
| */ |
| public class ModelledKeyAttributeFilter extends ContainerManagedEntityFilter { |
| private static ModelledKeyAttributeFilter singleton; |
| /** |
| * filter method comment. |
| */ |
| public List filter(ContainerManagedEntity cmp) { |
| return getSourceAttributes(cmp); |
| } |
| /** |
| * Return the proper list of attributes from cmpExt. |
| * Return all attributes minus those added due to Relationship Roles. |
| */ |
| protected java.util.List getSourceAttributes(ContainerManagedEntity cmp) { |
| java.util.List all, localRoleKeyAttributes; |
| all = new java.util.ArrayList(cmp.getKeyAttributes()); |
| localRoleKeyAttributes = cmp.getFilteredFeatures(KeyRelationshipRoleAttributeFilter.singleton()); |
| filterRoleAttributesByName(all, localRoleKeyAttributes); |
| return all; |
| } |
| /** |
| * Insert the method's description here. |
| * Creation date: (11/28/2000 5:36:00 PM) |
| * @return com.ibm.ejs.models.base.extensions.ejbext.impl.ModelledKeyAttributeFilter |
| */ |
| public static ModelledKeyAttributeFilter singleton() { |
| if (singleton == null) |
| singleton = new ModelledKeyAttributeFilter(); |
| return singleton; |
| } |
| } |
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