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Lucene example source code file (StandardTokenizerInterface.java)

This example Lucene source code file (StandardTokenizerInterface.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

io, ioexception, ioexception, standardtokenizerinterface, standardtokenizerinterface, yyeof, yyeof

The Lucene StandardTokenizerInterface.java source code

package org.apache.lucene.analysis.standard;

/**
 * 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.analysis.tokenattributes.CharTermAttribute;

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

interface StandardTokenizerInterface {

  /** This character denotes the end of file */
  public static final int YYEOF = -1;

  /**
   * Copies the matched text into the CharTermAttribute
   */
  void getText(CharTermAttribute t);

  /**
   * Returns the current position.
   */
  int yychar();

  /**
   * Resets the scanner to read from a new input stream.
   * Does not close the old reader.
   *
   * All internal variables are reset, the old input stream 
   * <b>cannot be reused (internal buffer is discarded and lost).
   * Lexical state is set to <tt>ZZ_INITIAL.
   *
   * @param reader   the new input stream 
   */
  void yyreset(Reader reader);

  /**
   * Returns the length of the matched text region.
   */
  int yylength();

  /**
   * Resumes scanning until the next regular expression is matched,
   * the end of input is encountered or an I/O-Error occurs.
   *
   * @return      the next token, {@link #YYEOF} on end of stream
   * @exception   IOException  if any I/O-Error occurs
   */
  int getNextToken() throws IOException;

}

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