/*
 * 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.jetspeed.util.ojb;

import org.apache.jetspeed.util.JetspeedLongObjectID;
import org.apache.ojb.broker.accesslayer.conversions.ConversionException;
import org.apache.ojb.broker.accesslayer.conversions.FieldConversion;

/**
  * <p style="font-weight: bold">
 * ObjectRelationalBridge field conversion.
 * </p>
 * 
 * Converts between <code>long</code> and <code>JetspeedLongObjectID</code>
 * 
 * @author <a href="mailto:weaver@apache.org">Scott T. Weaver</a>
 */
public class ObjectIDtoLongFieldConversion implements FieldConversion
{

    /**
     * @see org.apache.ojb.broker.accesslayer.conversions.FieldConversion#javaToSql(java.lang.Object)
     */
    public Object javaToSql(Object arg0) throws ConversionException
    {
        if (arg0 instanceof JetspeedLongObjectID)
        {
            return ((JetspeedLongObjectID)arg0).getLong();
        }
        return arg0;
    }

    /**
     * @see org.apache.ojb.broker.accesslayer.conversions.FieldConversion#sqlToJava(java.lang.Object)
     */
    public Object sqlToJava(Object arg0) throws ConversionException
    {
        if (arg0 instanceof Number)
        {
            return new JetspeedLongObjectID(((Number)arg0).longValue());
        }
        return arg0;
    }
}
