org.camunda.bpm.engine.impl.cmd
Class GetActivityInstanceCmd

java.lang.Object
  org.camunda.bpm.engine.impl.cmd.GetActivityInstanceCmd

All Implemented Interfaces:

Command<ActivityInstance>

public class GetActivityInstanceCmd
extends Object
implements Command<ActivityInstance>

Author:

Daniel Meyer

Field Summary

protected String

processInstanceId

Constructor Summary

GetActivityInstanceCmd(String processInstanceId)

Method Summary

ActivityInstance	execute(CommandContext commandContext)
protected ScopeImpl	getActivity(ExecutionEntity executionEntity)
protected void	initActivityInstanceTree(ActivityInstanceImpl parentActInst, Map<String,List<ExecutionEntity>> executionsByParentActIds)
protected boolean	isInactiveConcurrentRoot(ExecutionEntity execution) returns true if execution is a concurrent root.
protected void	loadChildExecutionsFromCache(ExecutionEntity execution, List<ExecutionEntity> childExecutions) Loads all executions that are part of this process instance tree from the dbSqlSession cache.
protected List<ExecutionEntity>	loadFromDb(String processInstanceId, CommandContext commandContext)
protected List<ExecutionEntity>	loadProcessInstance(String processInstanceId, CommandContext commandContext)

Methods inherited from class java.lang.Object

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

Field Detail

processInstanceId

protected String processInstanceId

Constructor Detail

GetActivityInstanceCmd

public GetActivityInstanceCmd(String processInstanceId)

Parameters:

processInstanceId -

Method Detail

execute

public ActivityInstance execute(CommandContext commandContext)

Specified by:

execute in interface Command<ActivityInstance>

loadProcessInstance

protected List<ExecutionEntity> loadProcessInstance(String processInstanceId,
                                                    CommandContext commandContext)

loadFromDb

protected List<ExecutionEntity> loadFromDb(String processInstanceId,
                                           CommandContext commandContext)

loadChildExecutionsFromCache

protected void loadChildExecutionsFromCache(ExecutionEntity execution,
                                            List<ExecutionEntity> childExecutions)

Loads all executions that are part of this process instance tree from the dbSqlSession cache. (optionally querying the db if a child is not already loaded.

Parameters:

execution - the current root execution (already contained in childExecutions)

childExecutions - the list in which all child executions should be collected

initActivityInstanceTree

protected void initActivityInstanceTree(ActivityInstanceImpl parentActInst,
                                        Map<String,List<ExecutionEntity>> executionsByParentActIds)

isInactiveConcurrentRoot

protected boolean isInactiveConcurrentRoot(ExecutionEntity execution)

returns true if execution is a concurrent root.

getActivity

protected ScopeImpl getActivity(ExecutionEntity executionEntity)