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An implementation of HTML5's EventSource (Server-Sent Events)

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/*
 * Copyright (c) 2011 the original author or authors.
 *
 * 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 org.eclipse.jetty.servlets;

import java.io.IOException;

public interface EventSource
{
    public void onOpen(Emitter emitter) throws IOException;

    public void onClose();

    public interface Emitter
    {
        public void data(String data) throws IOException;

        public void comment(String comment) throws IOException;

        public void close();
    }
}