content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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.activiti.engine.impl.delegate.invocation;
  
  import org.activiti.engine.impl.interceptor.DelegateInterceptor;
  
  /**
   * Provides context about the invocation of usercode and handles the actual invocation
   *
  
   * @see DelegateInterceptor
   */
  public abstract class DelegateInvocation {
  
      protected Object invocationResult;
      protected Object[] invocationParameters;
  
      /**
       * make the invocation proceed, performing the actual invocation of the user code.
       *
       * @throws Exception
       *           the exception thrown by the user code
       */
      public void proceed() {
          invoke();
      }
  
      protected abstract void invoke();
  
      /**
       * @return the result of the invocation (can be null if the invocation does not return a result)
       */
      public Object getInvocationResult() {
          return invocationResult;
      }
  
      /**
       * @return an array of invocation parameters (null if the invocation takes no parameters)
       */
      public Object[] getInvocationParameters() {
          return invocationParameters;
      }
  
      /**
       * returns the target of the current invocation, ie. JavaDelegate, ValueExpression ...
       */
      public abstract Object getTarget();
  }
  