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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 http://www.apache.org/licenses/LICENSE-2.0 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.map.DataMap;
 import  org.apache.cayenne.map.DbAttribute;
 import  org.apache.cayenne.map.DbEntity;
 import  org.apache.cayenne.map.DbRelationship;
 import  org.apache.cayenne.map.Embeddable;
 import  org.apache.cayenne.map.EmbeddableAttribute;
 import  org.apache.cayenne.map.ObjAttribute;
 import  org.apache.cayenne.map.ObjEntity;
 import  org.apache.cayenne.map.ObjRelationship;
 import  org.apache.cayenne.map.Procedure;
 import  org.apache.cayenne.map.ProcedureParameter;
 import  org.apache.cayenne.project.ProjectPath;
 import  org.apache.cayenne.query.Query;
 import  org.apache.cayenne.util.XMLEncoder;
 import  org.apache.cayenne.util.XMLSerializable;

Action for copying entities, queries etc. into system buffer
 
 public class CopyAction extends CayenneAction {
     public static String getActionName() {
         return "Copy";
     }

    
Constructor for CopyAction
 
     public CopyAction(Application application) {
         this(getActionName(), application);
     }
    
    
Constructor for descendants
 
     protected CopyAction(String nameApplication application) {
         super(nameapplication);
     }
 
     @Override
     public String getIconName() {
         return "icon-copy.gif";
     }
     
     @Override
     public KeyStroke getAcceleratorKey() {
         return KeyStroke.getKeyStroke(., Toolkit.getDefaultToolkit().getMenuShortcutKeyMask());
     }

    
Performs copying of items into system buffer
 
     @Override
     public void performAction(ActionEvent e) {
         ProjectController mediator = getProjectController();
         
         Object content = copy(mediator);
         
         if (content != null) {
             Clipboard sysClip = Toolkit.getDefaultToolkit().getSystemClipboard();
             sysClip.setContents(new CayenneTransferable(content), null);
         }
         
         //update paste button
         ((PasteActiongetApplication().getAction(PasteAction.getActionName())).updateState();
     }
    
    
Detects selected objects and returns them
    public Object copy(ProjectController mediator) {
        return mediator.getCurrentObject();
    }
    
    
Prints an object in XML format to an output stream
    protected void print(XMLEncoder encoder, XMLSerializable object) {
        object.encodeAsXML(encoder);
    }
    
    
Returns true if last object in the path contains a removable object.
    @Override
    public boolean enableForPath(ProjectPath path) {
        if (path == null) {
            return false;
        }
        
        Object last = path.getObject();
        if (last instanceof DataMap || last instanceof Query
                || last instanceof DbEntity || last instanceof ObjEntity
                || last instanceof Embeddable || last instanceof EmbeddableAttribute
                || last instanceof DbAttribute || last instanceof DbRelationship
                || last instanceof ObjAttribute || last instanceof ObjRelationship
                || last instanceof Procedure || last instanceof ProcedureParameter) {
            return true;
        }
        return false;
    }
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