pylucene 3.5.0-3

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

diff --git a/lucene-java-3.4.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/processors/MultiFieldQueryNodeProcessor.java b/lucene-java-3.4.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/processors/MultiFieldQueryNodeProcessor.java
deleted file mode 100644 (file)
index 4351cea..0000000
--- a/lucene-java-3.4.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/processors/MultiFieldQueryNodeProcessor.java
+++ /dev/null
@@ -1,133 +0,0 @@
-package org.apache.lucene.queryParser.standard.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.LinkedList;
-import java.util.List;
-
-import org.apache.lucene.queryParser.core.QueryNodeException;
-import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
-import org.apache.lucene.queryParser.core.nodes.BooleanQueryNode;
-import org.apache.lucene.queryParser.core.nodes.FieldableNode;
-import org.apache.lucene.queryParser.core.nodes.GroupQueryNode;
-import org.apache.lucene.queryParser.core.nodes.QueryNode;
-import org.apache.lucene.queryParser.core.processors.QueryNodeProcessorImpl;
-import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler.ConfigurationKeys;
-
-/**
- * This processor is used to expand terms so the query looks for the same term
- * in different fields. It also boosts a query based on its field. <br/>
- * <br/>
- * This processor looks for every {@link FieldableNode} contained in the query
- * node tree. If a {@link FieldableNode} is found, it checks if there is a
- * {@link ConfigurationKeys#MULTI_FIELDS} defined in the {@link QueryConfigHandler}. If
- * there is, the {@link FieldableNode} is cloned N times and the clones are
- * added to a {@link BooleanQueryNode} together with the original node. N is
- * defined by the number of fields that it will be expanded to. The
- * {@link BooleanQueryNode} is returned. <br/>
- * 
- * @see ConfigurationKeys#MULTI_FIELDS
- */
-public class MultiFieldQueryNodeProcessor extends QueryNodeProcessorImpl {
-
-  private boolean processChildren = true;
-
-  public MultiFieldQueryNodeProcessor() {
-    // empty constructor
-  }
-
-  @Override
-  protected QueryNode postProcessNode(QueryNode node) throws QueryNodeException {
-
-    return node;
-
-  }
-
-  @Override
-  protected void processChildren(QueryNode queryTree) throws QueryNodeException {
-
-    if (this.processChildren) {
-      super.processChildren(queryTree);
-
-    } else {
-      this.processChildren = true;
-    }
-
-  }
-
-  @Override
-  protected QueryNode preProcessNode(QueryNode node) throws QueryNodeException {
-
-    if (node instanceof FieldableNode) {
-      this.processChildren = false;
-      FieldableNode fieldNode = (FieldableNode) node;
-
-      if (fieldNode.getField() == null) {
-        CharSequence[] fields = getQueryConfigHandler().get(ConfigurationKeys.MULTI_FIELDS);
-
-        if (fields == null) {
-          throw new IllegalArgumentException(
-              "StandardQueryConfigHandler.ConfigurationKeys.MULTI_FIELDS should be set on the QueryConfigHandler");
-        }
-
-        if (fields != null && fields.length > 0) {
-          fieldNode.setField(fields[0]);
-
-          if (fields.length == 1) {
-            return fieldNode;
-
-          } else {
-            LinkedList<QueryNode> children = new LinkedList<QueryNode>();
-            children.add(fieldNode);
-
-            for (int i = 1; i < fields.length; i++) {
-              try {
-                fieldNode = (FieldableNode) fieldNode.cloneTree();
-                fieldNode.setField(fields[i]);
-
-                children.add(fieldNode);
-
-              } catch (CloneNotSupportedException e) {
-                // should never happen
-              }
-
-            }
-
-            return new GroupQueryNode(new BooleanQueryNode(children));
-
-          }
-
-        }
-
-      }
-
-    }
-
-    return node;
-
-  }
-
-  @Override
-  protected List<QueryNode> setChildrenOrder(List<QueryNode> children)
-      throws QueryNodeException {
-
-    return children;
-
-  }
-
-}