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Java FST.END_LABEL属性代码示例

本文整理汇总了Java中org.apache.lucene.util.fst.FST.END_LABEL属性的典型用法代码示例。如果您正苦于以下问题:Java FST.END_LABEL属性的具体用法?Java FST.END_LABEL怎么用?Java FST.END_LABEL使用的例子?那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在org.apache.lucene.util.fst.FST的用法示例。


在下文中一共展示了FST.END_LABEL属性的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: getExactMatchStartingFromRootArc

/**
 * Returns the first exact match by traversing root arcs, starting from the
 * arc <code>rootArcIndex</code>.
 * 
 * @param rootArcIndex
 *          The first root arc index in {@link #rootArcs} to consider when
 *          matching.
 * 
 * @param utf8
 *          The sequence of utf8 bytes to follow.
 * 
 * @return Returns the bucket number of the match or <code>-1</code> if no
 *         match was found.
 */
private int getExactMatchStartingFromRootArc(
    int rootArcIndex, BytesRef utf8) {
  // Get the UTF-8 bytes representation of the input key.
  try {
    final FST.Arc<Object> scratch = new FST.Arc<>();
    FST.BytesReader fstReader = automaton.getBytesReader();
    for (; rootArcIndex < rootArcs.length; rootArcIndex++) {
      final FST.Arc<Object> rootArc = rootArcs[rootArcIndex];
      final FST.Arc<Object> arc = scratch.copyFrom(rootArc);
      
      // Descend into the automaton using the key as prefix.
      if (descendWithPrefix(arc, utf8)) {
        automaton.readFirstTargetArc(arc, arc, fstReader);
        if (arc.label == FST.END_LABEL) {
          // Normalize prefix-encoded weight.
          return rootArc.label;
        }
      }
    }
  } catch (IOException e) {
    // Should never happen, but anyway.
    throw new RuntimeException(e);
  }
  
  // No match.
  return -1;
}
 
开发者ID:europeana,项目名称:search,代码行数:41,代码来源:FSTCompletion.java

示例2: getExactMatchStartingFromRootArc

/**
 * Returns the first exact match by traversing root arcs, starting from the
 * arc <code>rootArcIndex</code>.
 * 
 * @param rootArcIndex
 *          The first root arc index in {@link #rootArcs} to consider when
 *          matching.
 * 
 * @param utf8
 *          The sequence of utf8 bytes to follow.
 * 
 * @return Returns the bucket number of the match or <code>-1</code> if no
 *         match was found.
 */
private int getExactMatchStartingFromRootArc(
    int rootArcIndex, BytesRef utf8) {
  // Get the UTF-8 bytes representation of the input key.
  try {
    final FST.Arc<Object> scratch = new FST.Arc<Object>();
    FST.BytesReader fstReader = automaton.getBytesReader();
    for (; rootArcIndex < rootArcs.length; rootArcIndex++) {
      final FST.Arc<Object> rootArc = rootArcs[rootArcIndex];
      final FST.Arc<Object> arc = scratch.copyFrom(rootArc);
      
      // Descend into the automaton using the key as prefix.
      if (descendWithPrefix(arc, utf8)) {
        automaton.readFirstTargetArc(arc, arc, fstReader);
        if (arc.label == FST.END_LABEL) {
          // Normalize prefix-encoded weight.
          return rootArc.label;
        }
      }
    }
  } catch (IOException e) {
    // Should never happen, but anyway.
    throw new RuntimeException(e);
  }
  
  // No match.
  return -1;
}
 
开发者ID:pkarmstr,项目名称:NYBC,代码行数:41,代码来源:FSTCompletion.java


注:本文中的org.apache.lucene.util.fst.FST.END_LABEL属性示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。