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/*******************************************************************************
* 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 persistentAttributes from the
* ContainerManagedEntityExtension that is passed as an argument to the filter method.
* It will remove 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
* and all inherited attributes minus any attributes pointed to by EjbRelationshipRoles, thus the
* attributes will only be attributes that were defined by the user.
* Creation date: (11/28/2000 7:31:42 PM)
* @author: Administrator
*/
public class ModelledPersistentAttributeFilter extends ContainerManagedEntityFilter {
private static ModelledPersistentAttributeFilter 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, roleAttributes;
all = new java.util.ArrayList(cmp.getPersistentAttributes());
roleAttributes = cmp.getFilteredFeatures(RelationshipRoleAttributeFilter.singleton());
filterRoleAttributesByName(all, roleAttributes);
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.ModelledPersistentAttributeFilter
*/
public static ModelledPersistentAttributeFilter singleton() {
if (singleton == null)
singleton = new ModelledPersistentAttributeFilter();
return singleton;
}
}
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