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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2011 - 2012 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
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 *
 * Modifications:
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 */

package org.glassfish.websocket.api;

/**
 * This interface represents the protocol the web socket runtime uses to decode a String coming
 * 'off the wire' into a developer level message object of type T. Developers implement this
 * interface when they want receive web socket messages in the form of custom message objects.
 * Custom decoders may choose whether they wish to decode the message or not. If they choose to
 * decode the message, they will be asked to. If they do not, they will not be asked to.
 * @author dannycoward
 */
public interface TextDecoder {
    /** Decode the incoming String parameter into an instance of the custom type.*/
    public T decode(String s) throws ConversionException;
    /** Decide whether you will decode the incoming String message.*/
    public boolean willDecode(String s);
}