--- /dev/null
+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.List;
+
+import org.apache.lucene.queryParser.core.QueryNodeException;
+import org.apache.lucene.queryParser.core.nodes.FieldQueryNode;
+import org.apache.lucene.queryParser.core.nodes.MatchAllDocsQueryNode;
+import org.apache.lucene.queryParser.core.nodes.QueryNode;
+import org.apache.lucene.queryParser.core.processors.QueryNodeProcessorImpl;
+import org.apache.lucene.queryParser.standard.nodes.WildcardQueryNode;
+import org.apache.lucene.search.MatchAllDocsQuery;
+
+/**
+ * This processor converts every {@link WildcardQueryNode} that is "*:*" to
+ * {@link MatchAllDocsQueryNode}.
+ *
+ * @see MatchAllDocsQueryNode
+ * @see MatchAllDocsQuery
+ */
+public class MatchAllDocsQueryNodeProcessor extends QueryNodeProcessorImpl {
+
+ public MatchAllDocsQueryNodeProcessor() {
+ // empty constructor
+ }
+
+ @Override
+ protected QueryNode postProcessNode(QueryNode node) throws QueryNodeException {
+
+ if (node instanceof FieldQueryNode) {
+ FieldQueryNode fqn = (FieldQueryNode) node;
+
+ if (fqn.getField().toString().equals("*")
+ && fqn.getText().toString().equals("*")) {
+
+ return new MatchAllDocsQueryNode();
+
+ }
+
+ }
+
+ return node;
+
+ }
+
+ @Override
+ protected QueryNode preProcessNode(QueryNode node) throws QueryNodeException {
+
+ return node;
+
+ }
+
+ @Override
+ protected List<QueryNode> setChildrenOrder(List<QueryNode> children)
+ throws QueryNodeException {
+
+ return children;
+
+ }
+
+}