| /* |
| * 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); |
| } |