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/*
* 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.tamaya;
/**
* Models a function that maps a given {@link Configuration} to something else. This can be used
* to model additional functionality and applying it to a given {@link Configuration} instance by
* calling the {@link Configuration#query(ConfigQuery)} method.
*
* @param <T> the config query type
* @deprecated Use {@link java.util.function.Function}
*/
@FunctionalInterface
@Deprecated
public interface ConfigQuery<T>{
/**
* Creates a result based on the given {@link Configuration}. Queries basically act similar to
* operators, whereas they return any kind of result.
*
* @param config the input configuration, not {@code null}.
* @return the query result.
*/
T query(Configuration config);
}