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1   /*
2    * ====================================================================
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *   http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing,
14   * software distributed under the License is distributed on an
15   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16   * KIND, either express or implied.  See the License for the
17   * specific language governing permissions and limitations
18   * under the License.
19   * ====================================================================
20   *
21   * This software consists of voluntary contributions made by many
22   * individuals on behalf of the Apache Software Foundation.  For more
23   * information on the Apache Software Foundation, please see
24   * <http://www.apache.org/>.
25   *
26   */
27  package org.apache.http.nio.reactor;
28  
29  /**
30   * SessionBufferStatus interface is intended to query the status of session
31   * I/O buffers.
32   *
33   * @since 4.0
34   */
35  public interface SessionBufferStatus {
36  
37      /**
38       * Determines if the session input buffer contains data.
39       *
40       * @return {@code true} if the session input buffer contains data,
41       *   {@code false} otherwise.
42       */
43      boolean hasBufferedInput();
44  
45      /**
46       * Determines if the session output buffer contains data.
47       *
48       * @return {@code true} if the session output buffer contains data,
49       *   {@code false} otherwise.
50       */
51      boolean hasBufferedOutput();
52  
53  }