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;
  
  import org.activiti.engine.api.internal.Internal;
  
  /**
  
   */
  @Internal
  public interface VariableType {
      /**
       * name of variable type (limited to 100 characters length)
       */
      public String getTypeName();
  
      /**
       * <p>
       * Indicates if this variable type supports caching.
       * </p>
       * <p>
       * If caching is supported, the result of {@link #getValue(ValueFields)} is saved for the duration of the session and used for subsequent reads of the variable's value.
       * </p>
       * <p>
       * If caching is not supported, all reads of a variable's value require a fresh call to {@link #getValue(ValueFields)}.
       * </p>
       *
       * @return whether variables of this type are cacheable.
       */
      boolean isCachable();
  
      /**
       * @return whether this variable type can store the specified value.
       */
      boolean isAbleToStore(Object value);
  
      /**
       * Stores the specified value in the supplied {@link ValueFields}.
       */
      void setValue(Object value, ValueFields valueFields);
  
      /**
       * @return the value of a variable based on the specified {@link ValueFields}.
       */
      Object getValue(ValueFields valueFields);
  }
  