001/*
002 * Copyright 2002-2011 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.core.env;
018
019/**
020 * Holder containing one or more {@link PropertySource} objects.
021 *
022 * @author Chris Beams
023 * @since 3.1
024 */
025public interface PropertySources extends Iterable<PropertySource<?>> {
026
027        /**
028         * Return whether a property source with the given name is contained.
029         * @param name the {@linkplain PropertySource#getName() name of the property source} to find
030         */
031        boolean contains(String name);
032
033        /**
034         * Return the property source with the given name, {@code null} if not found.
035         * @param name the {@linkplain PropertySource#getName() name of the property source} to find
036         */
037        PropertySource<?> get(String name);
038
039}