content: package org.apache.lucene.analysis.payloads;
  /**
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.
   */
  
  import org.apache.lucene.index.Payload;
  
  
  /**
   * Mainly for use with the DelimitedPayloadTokenFilter, converts char buffers to Payload.
   * <p/>
   * NOTE: This interface is subject to change 
   *
   **/
  public interface PayloadEncoder {
  
    Payload encode(char[] buffer);
  
    /**
     * Convert a char array to a {@link org.apache.lucene.index.Payload}
     * @param buffer
     * @param offset
     * @param length
     * @return encoded {@link Payload}
     */
    Payload encode(char [] buffer, int offset, int length);
  }
  