activiti 流程变量

activiti 流程变量

设置流程变量按照类型来说有两种方法，一种是在当前的流程实例上设置，一种在任务上设置

1. 在流程实例上设置

/** Update or create a variable for an execution.  If the variable is not already existing somewhere in      the execution hierarchy,   * it will be created in the process instance (which is the root execution).    * @param executionId id of execution to set variable in, cannot be null.   * @param variableName name of variable to set, cannot be null.   * @param value value to set. When null is passed, the variable is not removed,   * only it's value will be set to null.   * @throws ActivitiObjectNotFoundException when no execution is found for the given executionId.    */  void setVariable(String executionId, String variableName, Object value);

runtimeService.setVariable(executionId, variableName, value);

在当前流程实例设置后，在任何节点都能使用

1. 列表内容

taskService.setVariable(taskId, variableName, value);

/** set variable on a task.  If the variable is not already existing, it will be created in the    * most outer scope.  This means the process instance in case this task is related to an    * execution. */  void setVariable(String taskId, String variableName, Object value);

在当前任务设置流程变量只有之后的节点才能用