001/*
002 * Copyright 2020 Global Biodiversity Information Facility (GBIF)
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.gbif.api.annotation;
017
018import java.lang.annotation.*;
019
020/**
021 * Indicates that the field is suitable to convert empty strings into null. To use this annotate the
022 * method with EmptyToNull. The field must be:
023 *
024 * <ul>
025 *   <li>A mutable POJO with getters and setters
026 * </ul>
027 */
028@Retention(RetentionPolicy.RUNTIME)
029@Target({ElementType.PARAMETER, ElementType.METHOD})
030@Inherited
031public @interface EmptyToNull {
032}