jakarta.json.bind.annotation.JsonbDateFormat Maven / Gradle / Ivy

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/*
 * Copyright (c) 2016, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package jakarta.json.bind.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Annotation provides way how to set custom date format to field or JavaBean property.
 *
 * The pattern format is specified in {@link java.time.format.DateTimeFormatter}
 *
 * Usage
 * The {@code @JsonbDateFormat} annotation can be used with the following program elements:
 * 
 *    field 
 *    getter/setter 
 *    type 
 *    parameter 
 *    package 
 * 
 *
 * @since JSON Binding 1.0
 */
@JsonbAnnotation
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.ANNOTATION_TYPE, ElementType.FIELD,
        ElementType.METHOD, ElementType.TYPE, ElementType.PARAMETER, ElementType.PACKAGE})
public @interface JsonbDateFormat {

    /**
     * Value that indicates that default {@link java.util.Locale}.
     */
    String DEFAULT_LOCALE = "##default";

    /**
     * Value that indicates the default format.
     */
    String DEFAULT_FORMAT = "##default";

    /**
     * Special date format which serializes given date as milliseconds.
     * Such date is serialized as a number.
     */
    String TIME_IN_MILLIS = "##time-in-millis";

    /**
     * Specifies the date pattern to use.
     *
     * @return Date pattern to use.
     */
    String value() default DEFAULT_FORMAT;

    /**
     * Custom {@link java.util.Locale} to use.
     *
     * @return Locale to use.
     */
    String locale() default DEFAULT_LOCALE;

}