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Java example source code file (ConnectionReleaseTrigger.java)

This example source code file (ConnectionReleaseTrigger.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 tags/keywords

connectionreleasetrigger, io, ioexception

The ConnectionReleaseTrigger.java example source code

/*
 * ====================================================================
 *
 *  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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */

package org.apache.http.conn;

import java.io.IOException;

/**
 * Interface for releasing a connection. This can be implemented by various 
 * "trigger" objects which are associated with a connection, for example
 * a {@link EofSensorInputStream stream} or an {@link BasicManagedEntity entity}
 * or the {@link ManagedClientConnection connection} itself.
 * <p>
 * The methods in this interface can safely be called multiple times.
 * The first invocation releases the connection, subsequent calls
 * are ignored.
 *
 * @since 4.0
 */
public interface ConnectionReleaseTrigger {

    /**
     * Releases the connection with the option of keep-alive. This is a
     * "graceful" release and may cause IO operations for consuming the
     * remainder of a response entity. Use
     * {@link #abortConnection abortConnection} for a hard release. The
     * connection may be reused as specified by the duration.
     * 
     * @throws IOException
     *             in case of an IO problem. The connection will be released
     *             anyway.
     */
    void releaseConnection()
        throws IOException;

    /**
     * Releases the connection without the option of keep-alive.
     * This is a "hard" release that implies a shutdown of the connection.
     * Use {@link #releaseConnection()} for a graceful release.
     *
     * @throws IOException      in case of an IO problem.
     *         The connection will be released anyway.
     */
    void abortConnection()
        throws IOException;

}

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