content: package org.apache.lucene.index;
  
  /**
   * 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 java.io.IOException;
  
  import org.apache.lucene.util.ArrayUtil;
  import org.apache.lucene.util.RamUsageEstimator;
  
  /**
   * @lucene.experimental
   */
  
  abstract class FormatPostingsTermsConsumer {
  
    /** Adds a new term in this field; term ends with U+FFFF
     *  char */
    abstract FormatPostingsDocsConsumer addTerm(Term term,char[] text, int start) throws IOException;
  
    char[] termBuffer;
    FormatPostingsDocsConsumer addTerm(Term term,String text) throws IOException {
      final int len = text.length();
      if (termBuffer == null || termBuffer.length < 1+len)
        termBuffer = new char[ArrayUtil.oversize(1+len, RamUsageEstimator.NUM_BYTES_CHAR)];
      text.getChars(0, len, termBuffer, 0);
      termBuffer[len] = 0xffff;
      return addTerm(term,termBuffer, 0);
    }
  
    /** Called when we are done adding terms to this field */
    abstract void finish() throws IOException;
  }
  