Package org.apache.lucene.search

Examples of org.apache.lucene.search.PrefixQuery

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                break;
            }
            if (!path.endsWith("/")) {
                path += "/";
            }
            qs.add(new PrefixQuery(newPathTerm(path)));
            break;
        case DIRECT_CHILDREN:
            if (!path.endsWith("/")) {
                path += "/";
            }
            qs.add(new PrefixQuery(newPathTerm(path)));
            break;
        case EXACT:
            qs.add(new TermQuery(newPathTerm(path)));
            break;
        case PARENT:
            if (PathUtils.denotesRoot(path)) {
                // there's no parent of the root node
                // we add a path that can not possibly occur because there
                // is no way to say "match no documents" in Lucene
                qs.add(new TermQuery(new Term(FieldNames.PATH, "///")));
            } else {
                qs.add(new TermQuery(newPathTerm(PathUtils.getParentPath(path))));
            }
            break;
        case NO_RESTRICTION:
            break;
        }

        for (PropertyRestriction pr : filter.getPropertyRestrictions()) {

            if (pr.first == null && pr.last == null) {
                // ignore property existence checks, Lucene can't to 'property
                // is not null' queries (OAK-1208)
                continue;
            }

            String name = pr.propertyName;
            if (name.contains("/")) {
                // lucene cannot handle child-level property restrictions
                continue;
            }
            if ("rep:excerpt".equals(name)) {
                continue;
            }
            // TODO OAK-985
            if (JcrConstants.JCR_PRIMARYTYPE.equals(name)) {
                continue;
            }

            String first = null;
            String last = null;
            boolean isLike = pr.isLike;

            // TODO what to do with escaped tokens?
            if (pr.first != null) {
                first = pr.first.getValue(Type.STRING);
                first = first.replace("\\", "");
            }
            if (pr.last != null) {
                last = pr.last.getValue(Type.STRING);
                last = last.replace("\\", "");
            }

            if (isLike) {
                first = first.replace('%', WildcardQuery.WILDCARD_STRING);
                first = first.replace('_', WildcardQuery.WILDCARD_CHAR);

                int indexOfWS = first.indexOf(WildcardQuery.WILDCARD_STRING);
                int indexOfWC = first.indexOf(WildcardQuery.WILDCARD_CHAR);
                int len = first.length();

                if (indexOfWS == len || indexOfWC == len) {
                    // remove trailing "*" for prefixquery
                    first = first.substring(0, first.length() - 1);
                    if (JCR_PATH.equals(name)) {
                        qs.add(new PrefixQuery(newPathTerm(first)));
                    } else {
                        qs.add(new PrefixQuery(new Term(name, first)));
                    }
                } else {
                    if (JCR_PATH.equals(name)) {
                        qs.add(new WildcardQuery(newPathTerm(first)));
                    } else {
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   * Builds a new PrefixQuery instance
   * @param prefix Prefix term
   * @return new PrefixQuery instance
   */
  protected Query newPrefixQuery(Term prefix){
    PrefixQuery query = new PrefixQuery(prefix);
    query.setRewriteMethod(multiTermRewriteMethod);
    return query;
  }
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  public PrefixQuery build(QueryNode queryNode) throws QueryNodeException {   

    PrefixWildcardQueryNode wildcardNode = (PrefixWildcardQueryNode) queryNode;

    String text = wildcardNode.getText().subSequence(0, wildcardNode.getText().length() - 1).toString();
    PrefixQuery q = new PrefixQuery(new Term(wildcardNode.getFieldAsString(), text));
   
    MultiTermQuery.RewriteMethod method = (MultiTermQuery.RewriteMethod)queryNode.getTag(MultiTermRewriteMethodAttribute.TAG_ID);
    if (method != null) {
      q.setRewriteMethod(method);
    }
   
    return q;
  }
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        writer.addDocument(doc);
      }
      writer.close();
     
      reader = IndexReader.open(directory);
      PrefixQuery query = new PrefixQuery(new Term("category", "foo"));
      rw1 = query.rewrite(reader);
     
      BooleanQuery bq = new BooleanQuery();
      bq.add(query, BooleanClause.Occur.MUST);
     
      rw2 = bq.rewrite(reader);
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  {
    if (lowercaseExpandedTerms) {
      termStr = termStr.toLowerCase();
    }
    Term t = new Term(field, termStr);
    return new PrefixQuery(t);
  }
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    } else if(query instanceof WildcardQuery) {
      MultiTermQuery q = new WildcardQuery(query.getTerm());
      q.setBoost(query.getBoost());
      return q;
    } else if(query instanceof PrefixQuery) {
      MultiTermQuery q = new PrefixQuery(query.getTerm());
      q.setBoost(q.getBoost());
      return q;
    } else if(query instanceof FuzzyQuery) {
      FuzzyQuery q = (FuzzyQuery)query;
      q.setBoost(q.getBoost());
      return new FuzzyQuery(q.getTerm(), q.getMinSimilarity(), q.getPrefixLength());
    }
   
    return query;
  }
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    w.addDocument(document);

    IndexSearcher searcher = new IndexSearcher(DirectoryReader.open(w.w, false));
    w.close();
    Filter parentFilter = new QueryWrapperFilter(new TermQuery(new Term("__type", "parent")));
    Filter childFilter = new QueryWrapperFilter(new PrefixQuery(new Term("field2")));
    ToParentBlockJoinQuery query = new ToParentBlockJoinQuery(
        new FilteredQuery(new MatchAllDocsQuery(), childFilter),
        new FixedBitSetCachingWrapperFilter(parentFilter),
        ScoreMode.None
    );
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    if (token.length() < minPrefixChars) {
      // The leading ngram was directly indexed:
      return new TermQuery(new Term("textgrams", token));
    }

    return new PrefixQuery(new Term(TEXT_FIELD_NAME, token));
  }
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        try {
            IndexWriter writer = context.getWriter();
            // Remove all index entries in the removed subtree
            writer.deleteDocuments(newPathTerm(path));
            writer.deleteDocuments(new PrefixQuery(newPathTerm(path + "/")));
            this.context.indexUpdate();
        } catch (IOException e) {
            throw new CommitFailedException(
                    "Lucene", 5, "Failed to remove the index entries of"
                    + " the removed subtree " + path, e);
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                break;
            }
            if (!path.endsWith("/")) {
                path += "/";
            }
            qs.add(new PrefixQuery(newPathTerm(path)));
            break;
        case DIRECT_CHILDREN:
            if (!path.endsWith("/")) {
                path += "/";
            }
            qs.add(new PrefixQuery(newPathTerm(path)));
            break;
        case EXACT:
            qs.add(new TermQuery(newPathTerm(path)));
            break;
        case PARENT:
            if (denotesRoot(path)) {
                // there's no parent of the root node
                // we add a path that can not possibly occur because there
                // is no way to say "match no documents" in Lucene
                qs.add(new TermQuery(new Term(FieldNames.PATH, "///")));
            } else {
                qs.add(new TermQuery(newPathTerm(getParentPath(path))));
            }
            break;
        case NO_RESTRICTION:
            break;
        }

        for (PropertyRestriction pr : filter.getPropertyRestrictions()) {

            if (pr.first == null && pr.last == null) {
                // ignore property existence checks, Lucene can't to 'property
                // is not null' queries (OAK-1208)
                continue;
            }

            // check excluded properties and types
            if (isExcludedProperty(pr, indexDefinition)) {
                continue;
            }

            String name = pr.propertyName;
            if ("rep:excerpt".equals(name)) {
                continue;
            }
            if (JCR_PRIMARYTYPE.equals(name)) {
                continue;
            }

            if (skipTokenization(name)) {
                qs.add(new TermQuery(new Term(name, pr.first
                        .getValue(STRING))));
                continue;
            }

            String first = null;
            String last = null;
            boolean isLike = pr.isLike;

            // TODO what to do with escaped tokens?
            if (pr.first != null) {
                first = pr.first.getValue(STRING);
                first = first.replace("\\", "");
            }
            if (pr.last != null) {
                last = pr.last.getValue(STRING);
                last = last.replace("\\", "");
            }

            if (isLike) {
                first = first.replace('%', WildcardQuery.WILDCARD_STRING);
                first = first.replace('_', WildcardQuery.WILDCARD_CHAR);

                int indexOfWS = first.indexOf(WildcardQuery.WILDCARD_STRING);
                int indexOfWC = first.indexOf(WildcardQuery.WILDCARD_CHAR);
                int len = first.length();

                if (indexOfWS == len || indexOfWC == len) {
                    // remove trailing "*" for prefixquery
                    first = first.substring(0, first.length() - 1);
                    if (JCR_PATH.equals(name)) {
                        qs.add(new PrefixQuery(newPathTerm(first)));
                    } else {
                        qs.add(new PrefixQuery(new Term(name, first)));
                    }
                } else {
                    if (JCR_PATH.equals(name)) {
                        qs.add(new WildcardQuery(newPathTerm(first)));
                    } else {
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