/*
* 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.queryparser.flexible.core.config;
/**
* An instance of this class represents a key that is used to retrieve a value
* from {@link AbstractQueryConfig}. It also holds the value's type, which is
* defined in the generic argument.
*
* @see AbstractQueryConfig
*/
final public class ConfigurationKey<T> {
private ConfigurationKey() {}
/**
* Creates a new instance.
*
* @param <T> the value's type
*
* @return a new instance
*/
public static <T> ConfigurationKey<T> newInstance() {
return new ConfigurationKey<>();
}
}