import org.apache.lucene.queryparser.flexible.core.nodes.TokenizedPhraseQueryNode; //导入依赖的package包/类
public StandardQueryTreeBuilder() {
  setBuilder(GroupQueryNode.class, new GroupQueryNodeBuilder());
  setBuilder(FieldQueryNode.class, new FieldQueryNodeBuilder());
  setBuilder(BooleanQueryNode.class, new BooleanQueryNodeBuilder());
  setBuilder(FuzzyQueryNode.class, new FuzzyQueryNodeBuilder());
  setBuilder(NumericQueryNode.class, new DummyQueryNodeBuilder());
  setBuilder(NumericRangeQueryNode.class, new NumericRangeQueryNodeBuilder());
  setBuilder(BoostQueryNode.class, new BoostQueryNodeBuilder());
  setBuilder(ModifierQueryNode.class, new ModifierQueryNodeBuilder());
  setBuilder(WildcardQueryNode.class, new WildcardQueryNodeBuilder());
  setBuilder(TokenizedPhraseQueryNode.class, new PhraseQueryNodeBuilder());
  setBuilder(MatchNoDocsQueryNode.class, new MatchNoDocsQueryNodeBuilder());
  setBuilder(PrefixWildcardQueryNode.class,
      new PrefixWildcardQueryNodeBuilder());
  setBuilder(TermRangeQueryNode.class, new TermRangeQueryNodeBuilder());
  setBuilder(RegexpQueryNode.class, new RegexpQueryNodeBuilder());
  setBuilder(SlopQueryNode.class, new SlopQueryNodeBuilder());
  setBuilder(StandardBooleanQueryNode.class,
      new StandardBooleanQueryNodeBuilder());
  setBuilder(MultiPhraseQueryNode.class, new MultiPhraseQueryNodeBuilder());
  setBuilder(MatchAllDocsQueryNode.class, new MatchAllDocsQueryNodeBuilder());
  
}
 

import org.apache.lucene.queryparser.flexible.core.nodes.TokenizedPhraseQueryNode; //导入依赖的package包/类
@Override
protected QueryNode postProcessNode(QueryNode node) throws QueryNodeException {

  if (node instanceof SlopQueryNode) {
    SlopQueryNode phraseSlopNode = (SlopQueryNode) node;

    if (!(phraseSlopNode.getChild() instanceof TokenizedPhraseQueryNode)
        && !(phraseSlopNode.getChild() instanceof MultiPhraseQueryNode)) {
      return phraseSlopNode.getChild();
    }

  }

  return node;

}
 

import org.apache.lucene.queryparser.flexible.core.nodes.TokenizedPhraseQueryNode; //导入依赖的package包/类
@Override
public PhraseQuery build(QueryNode queryNode) throws QueryNodeException {
  TokenizedPhraseQueryNode phraseNode = (TokenizedPhraseQueryNode) queryNode;

  PhraseQuery phraseQuery = new PhraseQuery();

  List<QueryNode> children = phraseNode.getChildren();

  if (children != null) {

    for (QueryNode child : children) {
      TermQuery termQuery = (TermQuery) child
          .getTag(QueryTreeBuilder.QUERY_TREE_BUILDER_TAGID);
      FieldQueryNode termNode = (FieldQueryNode) child;

      phraseQuery.add(termQuery.getTerm(), termNode.getPositionIncrement());

    }

  }

  return phraseQuery;

}
 

import org.apache.lucene.queryparser.flexible.core.nodes.TokenizedPhraseQueryNode; //导入依赖的package包/类
@Override
protected QueryNode postProcessNode(QueryNode node) throws QueryNodeException {

  if (node instanceof TokenizedPhraseQueryNode
      || node instanceof MultiPhraseQueryNode) {

    return new SlopQueryNode(node, this.defaultPhraseSlop);

  }

  return node;

}