src/Lucene.Net.Core/Index/FormatPostingsTermsConsumer.cs

/* 
 * 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.
 */

using System;

using ArrayUtil = Lucene.Net.Util.ArrayUtil;

namespace Lucene.Net.Index
{
    
    /// <summary> NOTE: this API is experimental and will likely change</summary>
    
    abstract class FormatPostingsTermsConsumer
    {
        
        /// <summary>Adds a new term in this field; term ends with U+FFFF
        /// char 
        /// </summary>
        internal abstract FormatPostingsDocsConsumer AddTerm(char[] text, int start);
        
        internal char[] termBuffer;
        internal virtual FormatPostingsDocsConsumer AddTerm(System.String text)
        {
            int len = text.Length;
            if (termBuffer == null || termBuffer.Length < 1 + len)
                termBuffer = new char[ArrayUtil.GetNextSize(1 + len)];
            for (int i = 0; i < len; i++)
            {
                termBuffer[i] = (char) text[i];
            }
            termBuffer[len] = (char) (0xffff);
            return AddTerm(termBuffer, 0);
        }
        
        /// <summary>Called when we are done adding terms to this field </summary>
        internal abstract void  Finish();
    }
}