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.annotation;
  
  /**
   * The policies for calculating the defaults of parameters if it has preceding parameters (isn't the first parameter,
   * in other words).
   *
   * @since 2.x {@index}
   */
  public enum PrecedingParamsPolicy {
  
      /**
       * The policy to use should be as per the preceding defaults policy configured in <tt>application.properties</tt>.
       * <p>
       * If no defaults policy is configured, then default to the {@link PrecedingParamsPolicy#RESET RESET} policy.
       */
      AS_CONFIGURED,
  
      /**
       * If an end-user has changed this parameter's value, then do not overwrite the value when an earlier parameter
       * changes.
       * <p>
       * <b>WARNING</b>: If the parameter is constrained by dependent choices, then these will <i>not</i> be
       * re-evaluated.  The validation for the action should make sure that the parameter argument is validated
       * correctly.
       */
      PRESERVE_CHANGES,
  
      /**
       * If a previous parameter is changed, then reset this parameter to its default,
       * <i>even if</i> the end-user has changed the value of this parameter previously.
       */
      RESET,
  
      /**
       * Ignore the value provided by this annotation (meaning that the framework will keep searching, in meta
       * annotations or superclasses/interfaces).
       */
      NOT_SPECIFIED
  
  }
  