pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / queryparser / src / java / org / apache / lucene / queryParser / core / processors / RemoveDeletedQueryNodesProcessor.java

diff --git a/lucene-java-3.4.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/core/processors/RemoveDeletedQueryNodesProcessor.java b/lucene-java-3.4.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/core/processors/RemoveDeletedQueryNodesProcessor.java
deleted file mode 100644 (file)
index dcb3335..0000000
--- a/lucene-java-3.4.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/core/processors/RemoveDeletedQueryNodesProcessor.java
+++ /dev/null
@@ -1,113 +0,0 @@
-package org.apache.lucene.queryParser.core.processors;
-
-/**
- * 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 java.util.Iterator;
-import java.util.List;
-
-import org.apache.lucene.queryParser.core.QueryNodeException;
-import org.apache.lucene.queryParser.core.nodes.DeletedQueryNode;
-import org.apache.lucene.queryParser.core.nodes.MatchNoDocsQueryNode;
-import org.apache.lucene.queryParser.core.nodes.QueryNode;
-
-/**
- * A {@link QueryNodeProcessorPipeline} class removes every instance of
- * {@link DeletedQueryNode} from a query node tree. If the resulting root node
- * is a {@link DeletedQueryNode}, {@link MatchNoDocsQueryNode} is returned.
- * 
- */
-public class RemoveDeletedQueryNodesProcessor extends QueryNodeProcessorImpl {
-
-  public RemoveDeletedQueryNodesProcessor() {
-    // empty constructor
-  }
-
-  @Override
-  public QueryNode process(QueryNode queryTree) throws QueryNodeException {
-    queryTree = super.process(queryTree);
-
-    if (queryTree instanceof DeletedQueryNode
-        && !(queryTree instanceof MatchNoDocsQueryNode)) {
-
-      return new MatchNoDocsQueryNode();
-
-    }
-
-    return queryTree;
-
-  }
-
-  @Override
-  protected QueryNode postProcessNode(QueryNode node) throws QueryNodeException {
-
-    if (!node.isLeaf()) {
-      List<QueryNode> children = node.getChildren();
-      boolean removeBoolean = false;
-
-      if (children == null || children.size() == 0) {
-        removeBoolean = true;
-
-      } else {
-        removeBoolean = true;
-
-        for (Iterator<QueryNode> it = children.iterator(); it.hasNext();) {
-
-          if (!(it.next() instanceof DeletedQueryNode)) {
-            removeBoolean = false;
-            break;
-
-          }
-
-        }
-
-      }
-
-      if (removeBoolean) {
-        return new DeletedQueryNode();
-      }
-
-    }
-
-    return node;
-
-  }
-
-  @Override
-  protected List<QueryNode> setChildrenOrder(List<QueryNode> children)
-      throws QueryNodeException {
-
-    for (int i = 0; i < children.size(); i++) {
-
-      if (children.get(i) instanceof DeletedQueryNode) {
-        children.remove(i--);
-      }
-
-    }
-
-    return children;
-
-  }
-
-  @Override
-  protected QueryNode preProcessNode(QueryNode node) throws QueryNodeException {
-
-    return node;
-
-  }
-
-}