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Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. /
 package org.apache.cayenne.modeler.action;
 import  org.apache.cayenne.project.ProjectPath;
 import  org.apache.cayenne.util.EntityMergeSupport;

Action that synchronizes all ObjEntities with the current state of the selected DbEntity.
 public class DbEntitySyncAction extends CayenneAction {
     public static String getActionName() {
         return "Sync Dependent ObjEntities with DbEntity";
     public DbEntitySyncAction(Application application) {
         super(getActionName(), application);
     public String getIconName() {
         return "icon-sync.gif";


See also:
     public void performAction(ActionEvent e) {
     protected void synchDbEntity() {
         ProjectController mediator = getProjectController();
         DbEntity dbEntity = mediator.getCurrentDbEntity();
         if (dbEntity != null) {
             Iterator it = dbEntity.getDataMap().getMappedEntities(dbEntity).iterator();
             if (!it.hasNext()) {
             EntityMergeSupport merger = new EntitySyncController(Application
                     .getFrameController(), dbEntity).createMerger();
             if (merger == null) {
             DbEntitySyncUndoableEdit undoableEdit = new DbEntitySyncUndoableEdit(mediator
                     .getCurrentDataDomain(), mediator.getCurrentDataMap());
             while (it.hasNext()) {
                 ObjEntity entity = (ObjEntity);
                 DbEntitySyncUndoableEdit.EntitySyncUndoableListener listener = EntitySyncUndoableListener(
                 if (merger.isRemoveMeaningfulFKs()) {
                     undoableEdit.addEdit( MeaningfulFKsUndoableEdit(
                if (merger.synchronizeWithDbEntity(entity)) {
                    mediator.fireObjEntityEvent(new EntityEvent(

Returns true if path contains a ObjEntity object.
    public boolean enableForPath(ProjectPath path) {
        if (path == null) {
            return false;
        return path.firstInstanceOf(DbEntity.class) != null;
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