content: /*
   * Copyright 2012-2019 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;
  
  /**
   * Declares a field or method parameter should be converted to collection using the
   * specified delimiter.
   *
   * @author Phillip Webb
   * @since 2.0.0
   */
  @Documented
  @Retention(RetentionPolicy.RUNTIME)
  @Target({ ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER, ElementType.ANNOTATION_TYPE })
  public @interface Delimiter {
  
  	/**
  	 * A delimiter value used to indicate that no delimiter is required and the result
  	 * should be a single element containing the entire string.
  	 */
  	String NONE = "";
  
  	/**
  	 * The delimiter to use or {@code NONE} if the entire contents should be treated as a
  	 * single element.
  	 * @return the delimiter
  	 */
  	String value();
  
  }
  