001/**
002 * Copyright (C) 2006-2019 Talend Inc. - www.talend.com
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 * http://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 */
016package org.talend.sdk.component.api.service.configuration;
017
018import static java.lang.annotation.ElementType.FIELD;
019import static java.lang.annotation.ElementType.PARAMETER;
020import static java.lang.annotation.RetentionPolicy.RUNTIME;
021
022import java.lang.annotation.Retention;
023import java.lang.annotation.Target;
024
025/**
026 * Mark a configuration field method parameter as being instantiated from the {@link LocalConfiguration}.
027 */
028@Target({ FIELD, PARAMETER })
029@Retention(RUNTIME)
030public @interface Configuration {
031
032    /**
033     * @return the prefix to use in the LocalConfiguration to extract keys to include in the object instantiation.
034     */
035    String value();
036}