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.variable;
  
  /**
  
   */
  public class NullType implements VariableType {
  
      private static final long serialVersionUID = 1L;
  
      public String getTypeName() {
          return "null";
      }
  
      public boolean isCachable() {
          return true;
      }
  
      public Object getValue(ValueFields valueFields) {
          return null;
      }
  
      public boolean isAbleToStore(Object value) {
          return (value == null);
      }
  
      public void setValue(Object value, ValueFields valueFields) {}
  }
  