/*****************************************************************
 *   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.jpa.map;

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

import javax.persistence.AssociationOverride;

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

public class JpaAssociationOverride implements XMLSerializable {

    protected String name;
    protected Collection<JpaJoinColumn> joinColumns;

    public JpaAssociationOverride() {

    }

    public JpaAssociationOverride(AssociationOverride annotation) {
        this.name = annotation.name();
        if (annotation.joinColumns() != null) {

            for (int i = 0; i < annotation.joinColumns().length; i++) {
                getJoinColumns().add(new JpaJoinColumn(annotation.joinColumns()[i]));
            }
        }
    }

    public void encodeAsXML(XMLEncoder encoder) {
        encoder.print("<association-override");
        if (name != null) {
            encoder.print(" name=\"" + name + "\"");
        }
        encoder.println('>');
        encoder.indent(1);

        for (JpaJoinColumn c : getJoinColumns()) {
            c.encodeAsXML(encoder);
        }

        encoder.indent(-1);
        encoder.println("</association-override>");
    }

    public Collection<JpaJoinColumn> getJoinColumns() {
        if (joinColumns == null) {
            joinColumns = new ArrayList<JpaJoinColumn>();
        }
        return joinColumns;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}
