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 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
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package org.apache.cayenne.jpa.map;

import java.util.ArrayList;
import java.util.Collection;

import org.apache.cayenne.util.TreeNodeChild;
import org.apache.cayenne.util.XMLEncoder;
import org.apache.cayenne.util.XMLSerializable;

/**
 * A collection of entity listener descriptors.
 * 
 * @author Andrus Adamchik
 */
// andrus: I'd rather we flatten this object into JpaEntity, but since we have to follow
// the schema structure, we need this meaningless object.
public class JpaEntityListeners implements XMLSerializable {

    protected Collection<JpaEntityListener> entityListeners;

    @TreeNodeChild(type = JpaEntityListener.class)
    public Collection<JpaEntityListener> getEntityListeners() {
        if (entityListeners == null) {
            entityListeners = new ArrayList<JpaEntityListener>();
        }
        return entityListeners;
    }

    public void encodeAsXML(XMLEncoder encoder) {
        encoder.println("<entity-listeners>");
        encoder.indent(1);

        encoder.print(entityListeners);

        encoder.indent(-1);
        encoder.print("</entity-listeners>");
    }
}
