package org.apache.lucene.queryparser.flexible.aqp.config;
/**
* 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 org.apache.lucene.queryparser.flexible.core.nodes.QueryNode;
import org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessor;
import org.apache.lucene.util.Attribute;
/**
* This attribute is used to collect feedback messages and suggestions from the
* query parser
*
* WARNING: experimental, may change soon!
*/
public interface AqpFeedback extends Attribute {
public enum TYPE {
DEBUG, INFO, WARN, ERROR, SYNTAX_SUGGESTION, DEPRECATED
};
/*
* I am NOT trying to re-implement a wheel, I am just confused what is the
* proper way to wrap SLF4J used by SOLR (but not by Lucene) and not introduce
* it as a dependency to Lucene
*/
public AqpFeedbackEvent createEvent(TYPE level,
Class<? extends QueryNodeProcessor> qnClass, QueryNode node, String msg,
Object... args);
public void sendEvent(AqpFeedbackEvent event);
public void registerEventHandler(AqpFeedbackEventHandler handler);
}