--- /dev/null
+/**
+ * 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.
+ */
+package org.apache.lucene.benchmark.quality;
+
+import org.apache.lucene.queryParser.ParseException;
+import org.apache.lucene.search.Query;
+
+/**
+ * Parse a QualityQuery into a Lucene query.
+ */
+public interface QualityQueryParser {
+
+ /**
+ * Parse a given QualityQuery into a Lucene query.
+ * @param qq the quality query to be parsed.
+ * @throws ParseException if parsing failed.
+ */
+ public Query parse(QualityQuery qq) throws ParseException;
+
+}