Ptidej-v5.2-master/POM Tests/data/ArgoUML_0.28/src/org/argouml/uml/cognitive/ChildGenFind.java
// $Id: ChildGenFind.java 16523 2009-01-05 18:30:24Z tfmorris $
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package org.argouml.uml.cognitive;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.List;

import org.argouml.kernel.Project;
import org.argouml.model.Model;
import org.tigris.gef.base.Diagram;
import org.tigris.gef.util.ChildGenerator;

/**
 * Convenience class gives critics access to parts of the project.
 * 
 * It defines a gen() function that returns the "children" of any given part of
 * the UML model. It traverses a Project to Diagrams and Models, then uses
 * getModelElementContents to traverse the Models. <p>
 * 
 * @deprecated for 0.28 by tfmorris.  Use GEF-free variant 
 *      {@link ChildGenSearch}.
 * @stereotype singleton
 * @author jrobbins
 * @deprecated for 0.26 by tfmorris.  Use {@link org.argouml.ui.ChildGenSearch}.
 */
@Deprecated
public class ChildGenFind implements ChildGenerator {
    private static final ChildGenFind SINGLETON = new ChildGenFind();

    /**
     * Reply a Collection of the children of the given Object
     *
     * @see org.tigris.gef.util.ChildGenerator#gen(java.lang.Object)
     */
    public Enumeration gen(Object o) {
        List res = new ArrayList();
        if (o instanceof Project) {
            Project p = (Project) o;
            res.addAll(p.getUserDefinedModelList());
            res.addAll(p.getDiagramList());
        } else if (o instanceof Diagram) {
            Diagram d = (Diagram) o;
            res.addAll(d.getGraphModel().getNodes());
            res.addAll(d.getGraphModel().getEdges());
        } else if (Model.getFacade().isAModelElement(o)) {
            res.addAll(Model.getFacade().getModelElementContents(o));
        }
        
	return Collections.enumeration(res);
    }

    /**
     * @return Returns the SINGLETON.
     */
    public static ChildGenFind getSingleton() {
        return SINGLETON;
    }
}
