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1   /*
2    * Copyright (c) 2017 Baidu, Inc. All Rights Reserve.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package com.baidu.fsg.uid.buffer;
17  
18  /**
19   * If tail catches the cursor it means that the ring buffer is full, any more buffer put request will be rejected.
20   * Specify the policy to handle the reject. This is a Lambda supported interface
21   * 
22   * @author yutianbao
23   */
24  @FunctionalInterface
25  public interface RejectedPutBufferHandler {
26  
27      /**
28       * Reject put buffer request
29       * 
30       * @param ringBuffer
31       * @param uid
32       */
33      void rejectPutBuffer(RingBuffer ringBuffer, long uid);
34  }