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.bpmn.data;
  
  import java.io.Serializable;
  import org.activiti.engine.delegate.DelegateExecution;
  import org.activiti.engine.delegate.Expression;
  
  /**
   * A data association (Input or Output) between a source and a target
   *
  
   */
  public abstract class AbstractDataAssociation implements Serializable {
  
      private static final long serialVersionUID = 1L;
  
      protected String source;
  
      protected Expression sourceExpression;
  
      protected String target;
  
      protected AbstractDataAssociation(String source, String target) {
          this.source = source;
          this.target = target;
      }
  
      protected AbstractDataAssociation(Expression sourceExpression, String target) {
          this.sourceExpression = sourceExpression;
          this.target = target;
      }
  
      public abstract void evaluate(DelegateExecution execution);
  
      public String getSource() {
          return source;
      }
  
      public String getTarget() {
          return target;
      }
  
      public Expression getSourceExpression() {
          return sourceExpression;
      }
  }
  