org.camunda.bpm.engine.impl.interceptor.DelegateInterceptor Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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.camunda.bpm.engine.impl.interceptor;
import org.camunda.bpm.dmn.engine.DmnDecision;
import org.camunda.bpm.engine.impl.delegate.DelegateInvocation;
/**
* Interceptor responsible for handling calls to 'user code'. User code
* represents external Java code (e.g. services and listeners) invoked by
* activity. The following is a list of classes that represent user code:
*
* - {@link org.camunda.bpm.engine.delegate.JavaDelegate}
* - {@link org.camunda.bpm.engine.delegate.CaseExecutionListener}
* - {@link org.camunda.bpm.engine.delegate.ExecutionListener}
* - {@link org.camunda.bpm.engine.delegate.Expression}
* - {@link org.camunda.bpm.engine.delegate.TaskListener}
* - {@link DmnDecision}
*
*
* The interceptor is passed in an instance of {@link DelegateInvocation}.
* Implementations are responsible for calling
* {@link DelegateInvocation#proceed()}.
*
* @author Daniel Meyer
*/
public interface DelegateInterceptor {
void handleInvocation(DelegateInvocation invocation) throws Exception;
}