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Lucene example source code file (CharReader.java)

This example Lucene source code file (CharReader.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Lucene tags/keywords

charreader, charreader, charstream, charstream, io, ioexception, ioexception, override, override, reader

The Lucene CharReader.java source code

 * 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.apache.lucene.analysis;

import java.io.IOException;
import java.io.Reader;

 * CharReader is a Reader wrapper. It reads chars from
 * Reader and outputs {@link CharStream}, defining an
 * identify function {@link #correctOffset} method that
 * simply returns the provided offset.
public final class CharReader extends CharStream {

  private final Reader input;
  public static CharStream get(Reader input) {
    return input instanceof CharStream ?
      (CharStream)input : new CharReader(input);

  private CharReader(Reader in) {
    input = in;

  public int correctOffset(int currentOff) {
    return currentOff;

  public void close() throws IOException {

  public int read(char[] cbuf, int off, int len) throws IOException {
    return input.read(cbuf, off, len);

  public boolean markSupported(){
    return input.markSupported();

  public void mark( int readAheadLimit ) throws IOException {

  public void reset() throws IOException {

Other Lucene examples (source code examples)

Here is a short list of links related to this Lucene CharReader.java source code file:

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