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Jetty example source code file (Channel.java)

This example Jetty source code file (Channel.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Jetty tags/keywords

channel, collection, collection, datafilter, datafilter, object, object, string, string, util

The Jetty Channel.java source code

// ========================================================================
// Copyright 2007 Dojo 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 dojox.cometd;

import java.util.Collection;

/* ------------------------------------------------------------ */
/** A Bayeux Channel.
 * 
 */
public interface Channel
{
    /* ------------------------------------------------------------ */
    /**
     * @return true if the Channel has been removed, false if it was not possible to remove the channel
     */
    public abstract boolean remove();

    /* ------------------------------------------------------------ */
    public abstract String getId();

    /* ------------------------------------------------------------ */
    /** Publish a message
     * This is equivalent to Bayeux.publish(fromClient,channel.getId(),data,msgId).
     */
    public void publish(Client fromClient, Object data, String msgId);
    
    /* ------------------------------------------------------------ */
    /** Is the channel persistent.
     * Non persistent channels are removed when the last subscription is
     * removed 
     * @return true if the Channel will persist without any subscription.
     */
    public boolean isPersistent();
    
    /* ------------------------------------------------------------ */
    /**
     * @param persistent true if the Channel will persist without any subscription.
     */
    public void setPersistent(boolean persistent);
    
    /* ------------------------------------------------------------ */
    /** Subscribe to a channel.
     * Equivalent to bayeux.subscribe(channel.getId(),subscriber,false);
     * @param toChannel
     * @param subscriber
     */
    public void subscribe(Client subscriber);

    /* ------------------------------------------------------------ */
    /** Unsubscribe to a channel
     * @param toChannel
     * @param subscriber
     */
    public void unsubscribe(Client subscriber);

    /* ------------------------------------------------------------ */
    public Collection<Client> getSubscribers();

    /* ------------------------------------------------------------ */
    public void addDataFilter(DataFilter filter);

    /* ------------------------------------------------------------ */
    public DataFilter removeDataFilter(DataFilter filter);

    /* ------------------------------------------------------------ */
    public Collection<DataFilter> getDataFilters();

}

Other Jetty examples (source code examples)

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