content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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
   *
   *        http://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.apache.causeway.applib.mixins.security;
  
  import java.lang.annotation.ElementType;
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  import java.lang.annotation.Target;
  
  import org.apache.causeway.applib.annotation.Editing;
  import org.apache.causeway.applib.annotation.Parameter;
  import org.apache.causeway.applib.annotation.Property;
  import org.apache.causeway.applib.mixins.updates.OnUpdatedBy;
  
  /**
   * Allows domain objects that were created, updated or are otherwise associated
   * with a named user to act as a mixee in order that other modules may
   * contribute behavior.
   *
   * <p>
   *     The {@link OnUpdatedBy}
   *     interface is for entities to be automatically updated by the
   *     framework when persisted.
   * </p>
   *
   * @see OnUpdatedBy
   *
   * @since 2.0 {@index}
   */
  public interface HasUsername {
  
      @Property(
              editing = Editing.DISABLED,
              maxLength = Username.MAX_LENGTH
      )
      @Parameter(
              maxLength = Username.MAX_LENGTH
      )
      @Target({ ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER, ElementType.ANNOTATION_TYPE })
      @Retention(RetentionPolicy.RUNTIME)
      @interface Username {
          int MAX_LENGTH = 120;
          boolean NULLABLE = false;
          String ALLOWS_NULL = "false";
      }
  
      /**
       * The user that created, updated or is otherwise associated with this
       * object.
       */
      @Username
      String getUsername();
  
  }
  