org.camunda.bpm.engine.impl.cmd

Class SetProcessDefinitionVersionCmd

java.lang.Object

org.camunda.bpm.engine.impl.cmd.SetProcessDefinitionVersionCmd

All Implemented Interfaces:

Serializable, Command<Void>

public class SetProcessDefinitionVersionCmd
extends Object
implements Command<Void>, Serializable

Command that changes the process definition version of an existing process instance. Warning: This command will NOT perform any migration magic and simply set the process definition version in the database, assuming that the user knows, what he or she is doing. This is only useful for simple migrations. The new process definition MUST have the exact same activity id to make it still run. Furthermore, activities referenced by sub-executions and jobs that belong to the process instance MUST exist in the new process definition version. The command will fail, if there is already a ProcessInstance or HistoricProcessInstance using the new process definition version and the same business key as the ProcessInstance that is to be migrated. If the process instance is not currently waiting but actively running, then this would be a case for optimistic locking, meaning either the version update or the "real work" wins, i.e., this is a race condition.

Author:

Falko Menge, Ingo Richtsmeier

See Also:

http://forums.activiti.org/en/viewtopic.php?t=2918, Serialized Form

Constructor Summary

Constructors

Constructor and Description
SetProcessDefinitionVersionCmd(String processInstanceId, Integer processDefinitionVersion)

Method Summary

Modifier and Type	Method and Description
Void	execute(CommandContext commandContext)
protected Map<String,String>	getJobDefinitionMapping(List<JobDefinitionEntity> currentJobDefinitions, List<JobDefinitionEntity> newVersionJobDefinitions)
protected boolean	jobDefinitionsMatch(JobDefinitionEntity currentJobDefinition, JobDefinitionEntity newJobDefinition)
protected void	switchVersionOfIncident(CommandContext commandContext, IncidentEntity incidentEntity, ProcessDefinitionEntity newProcessDefinition)
protected void	switchVersionOfJob(JobEntity jobEntity, ProcessDefinitionEntity newProcessDefinition, Map<String,String> jobDefinitionMapping)
protected void	validateAndSwitchVersionOfExecution(CommandContext commandContext, ExecutionEntity execution, ProcessDefinitionEntity newProcessDefinition)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SetProcessDefinitionVersionCmd

public SetProcessDefinitionVersionCmd(String processInstanceId,
                                      Integer processDefinitionVersion)

Method Detail

execute

public Void execute(CommandContext commandContext)

Specified by:

execute in interface Command<Void>

getJobDefinitionMapping

protected Map<String,String> getJobDefinitionMapping(List<JobDefinitionEntity> currentJobDefinitions,
                                                     List<JobDefinitionEntity> newVersionJobDefinitions)

jobDefinitionsMatch

protected boolean jobDefinitionsMatch(JobDefinitionEntity currentJobDefinition,
                                      JobDefinitionEntity newJobDefinition)

switchVersionOfJob

protected void switchVersionOfJob(JobEntity jobEntity,
                                  ProcessDefinitionEntity newProcessDefinition,
                                  Map<String,String> jobDefinitionMapping)

switchVersionOfIncident

protected void switchVersionOfIncident(CommandContext commandContext,
                                       IncidentEntity incidentEntity,
                                       ProcessDefinitionEntity newProcessDefinition)

validateAndSwitchVersionOfExecution

protected void validateAndSwitchVersionOfExecution(CommandContext commandContext,
                                                   ExecutionEntity execution,
                                                   ProcessDefinitionEntity newProcessDefinition)