jetty-websocket/websocket-api/src/main/java/org/eclipse/jetty/websocket/api/annotations/OnWebSocketMessage.java

//
//  ========================================================================
//  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.websocket.api.annotations;

import java.io.Reader;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import org.eclipse.jetty.websocket.api.Session;

/**
 * Annotation for tagging methods to receive Binary or Text Message events.
 * <p>
 * Acceptable method patterns.<br>
 * Note: <code>methodName</code> can be any name you want to use.
 * <p>
 * <u>Text Message Versions</u>
 * <ol>
 * <li><code>public void methodName(String text)</code></li>
 * <li><code>public void methodName({@link Session} session, String text)</code></li>
 * <li><code>public void methodName(Reader reader)</code></li>
 * <li><code>public void methodName({@link Session} session, Reader reader)</code></li>
 * </ol>
 * Note: that the {@link Reader} in this case will always use UTF-8 encoding/charset (this is dictated by the RFC 6455 spec for Text Messages. If you need to
 * use a non-UTF-8 encoding/charset, you are instructed to use the binary messaging techniques.
 * <p>
 * <u>Binary Message Versions</u>
 * <ol>
 * <li><code>public void methodName(byte buf[], int offset, int length)</code></li>
 * <li><code>public void methodName({@link Session} session, byte buf[], int offset, int length)</code></li>
 * <li><code>public void methodName(InputStream stream)</code></li>
 * <li><code>public void methodName({@link Session} session, InputStream stream)</code></li>
 * </ol>
 */
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(value =
{ ElementType.METHOD })
public @interface OnWebSocketMessage
{
    /* no config */
}