text: /*
   * Copyright (c) 2010-2018. Axon Framework
   *
   * 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
   *
   *    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.axonframework.modelling.saga;
  
  import org.axonframework.eventhandling.EventMessage;
  import org.axonframework.messaging.annotation.MessageHandlingMember;
  
  /**
   * Used to derive the value of an association property as designated by the association property name.
   * 
   * @author Sofia Guy Ang
   */
  public interface AssociationResolver {
  
      /**
       * Validates that the associationPropertyName supplied is compatible with the handler.
       */
      <T> void validate(String associationPropertyName, MessageHandlingMember<T> handler);
  
      /**
       * Resolves the associationPropertyName as a value.
       */
      <T> Object resolve(String associationPropertyName, EventMessage<?> message, MessageHandlingMember<T> handler);
  }
  