001/**
002 * Copyright (C) 2006-2021 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.input;
017
018import static java.lang.annotation.ElementType.METHOD;
019import static java.lang.annotation.ElementType.TYPE;
020import static java.lang.annotation.RetentionPolicy.RUNTIME;
021
022import java.lang.annotation.Retention;
023import java.lang.annotation.Target;
024
025/**
026 * Mark a class as returning an input connector.
027 * This is only useful when there is no {@link PartitionMapper}.
028 */
029@Target({ TYPE, METHOD })
030@Retention(RUNTIME)
031public @interface Emitter {
032
033    /**
034     * @return the family of this mapper (family/grouping value).
035     */
036    String family() default "";
037
038    /**
039     * @return the value of the input.
040     */
041    String name() default "";
042}