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TermBuffer.javaAPI DocApache Lucene 2.1.03469Wed Feb 14 10:46:40 GMT 2007org.apache.lucene.index

TermBuffer

public final class TermBuffer extends Object implements Cloneable
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.

Fields Summary
private static final char[]
NO_CHARS
private String
field
private char[]
text
private int
textLength
private Term
term
Constructors Summary
Methods Summary
protected java.lang.Objectclone()

    TermBuffer clone = null;
    try {
      clone = (TermBuffer)super.clone();
    } catch (CloneNotSupportedException e) {}

    clone.text = new char[text.length];
    System.arraycopy(text, 0, clone.text, 0, textLength);

    return clone;
private static final intcompareChars(char[] v1, int len1, char[] v2, int len2)

    int end = Math.min(len1, len2);
    for (int k = 0; k < end; k++) {
      char c1 = v1[k];
      char c2 = v2[k];
      if (c1 != c2) {
        return c1 - c2;
      }
    }
    return len1 - len2;
public final intcompareTo(org.apache.lucene.index.TermBuffer other)

                            // cached

       
    if (field == other.field)			  // fields are interned
      return compareChars(text, textLength, other.text, other.textLength);
    else
      return field.compareTo(other.field);
public final voidread(org.apache.lucene.store.IndexInput input, org.apache.lucene.index.FieldInfos fieldInfos)

    this.term = null;                           // invalidate cache
    int start = input.readVInt();
    int length = input.readVInt();
    int totalLength = start + length;
    setTextLength(totalLength);
    input.readChars(this.text, start, length);
    this.field = fieldInfos.fieldName(input.readVInt());
public voidreset()

    this.field = null;
    this.textLength = 0;
    this.term = null;
public final voidset(org.apache.lucene.index.Term term)

    if (term == null) {
      reset();
      return;
    }

    // copy text into the buffer
    setTextLength(term.text().length());
    term.text().getChars(0, term.text().length(), text, 0);

    this.field = term.field();
    this.term = term;
public final voidset(org.apache.lucene.index.TermBuffer other)

    setTextLength(other.textLength);
    System.arraycopy(other.text, 0, text, 0, textLength);

    this.field = other.field;
    this.term = other.term;
private final voidsetTextLength(int newLength)

    if (text.length < newLength) {
      char[] newText = new char[newLength];
      System.arraycopy(text, 0, newText, 0, textLength);
      text = newText;
    }
    textLength = newLength;
public org.apache.lucene.index.TermtoTerm()

    if (field == null)                            // unset
      return null;

    if (term == null)
      term = new Term(field, new String(text, 0, textLength), false);

    return term;