content: /*
   * Copyright 2012-2020 the original author or authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.springframework.boot.convert;
  
  import java.lang.annotation.Documented;
  import java.lang.annotation.ElementType;
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  import java.lang.annotation.Target;
  import java.time.Duration;
  import java.time.temporal.ChronoUnit;
  
  /**
   * Annotation that can be used to change the default unit used when converting a
   * {@link Duration}.
   *
   * @author Phillip Webb
   * @since 2.0.0
   */
  @Target({ ElementType.FIELD, ElementType.PARAMETER })
  @Retention(RetentionPolicy.RUNTIME)
  @Documented
  public @interface DurationUnit {
  
  	/**
  	 * The duration unit to use if one is not specified.
  	 * @return the duration unit
  	 */
  	ChronoUnit value();
  
  }
  