/*
 * 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.ode.jacob.soup;

import java.io.Serializable;


/**
 * DOCUMENTME.
 *
 * @author Maciej Szefler <a href="mailto:mbs@fivesight.com">mbs</a>
 */

public class CommChannel extends ExecutionQueueObject implements Serializable {
    private static final long serialVersionUID = 1L;

    private Class<?> _type;

    public CommChannel() {}
    
    public CommChannel(Class<?> type) {
        _type = type;
    }

    public void setType(Class<?> type) {
        if (_type != null && _type != type) {
            throw new IllegalStateException("Type is already set!");
        }
        _type = type;
    }
    
    public Class<?> getType() {
        return _type;
    }

    public String toString() {
        StringBuffer buf = new StringBuffer(_type == null ? "<unbound>" : _type.getSimpleName());
        if (getDescription() != null) {
            buf.append(':').append(getDescription());
        }
        buf.append('#').append(getId());
        return buf.toString();
    }

}