ASN1Null.java

/**
 *
 * Copyright 2003-2004 The Apache Software Foundation
 *
 *  Licensed 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.geronimo.util.asn1;

import java.io.IOException;

/**
 * A NULL object.
 */
public abstract class ASN1Null
    extends DERObject
{
    public ASN1Null()
    {
    }

    public int hashCode()
    {
        return 0;
    }

    public boolean equals(
        Object o)
    {
        if ((o == null) || !(o instanceof ASN1Null))
        {
            return false;
        }

        return true;
    }

    abstract void encode(DEROutputStream out)
        throws IOException;
}