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java.lang.Object | +--com.beasys.commerce.foundation.StateMachine
This is the reference implemenation of a Workflow object. It provides a simple implemenation based on a set of states and transitions.
Workflow
, Serialized FormField Summary | |
protected State |
currentState
|
protected State |
initialState
|
protected java.util.TreeSet |
states
|
protected java.lang.String |
TRANSITION_KEY_TOKEN
|
protected java.util.TreeMap |
transitions
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Constructor Summary | |
StateMachine()
Use WorkflowHome.create("com.beasys.commerce.foundation.StateMachine") to instantiate the workflow. |
Method Summary | |
protected void |
addTransition(Transition t)
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java.lang.String |
doTransition(java.lang.String transitionName)
Given the name of the transition, perform the transition and return the new state. |
WorkflowContext |
getContext()
Get the context of the Workflow. |
java.lang.String |
getCurrentStateName()
Get the name of the current state |
java.lang.String |
getInitialStateName()
Get the name of the initial state |
java.lang.String[] |
getOutgoingTransitions(java.lang.String state)
Given the name of the state, return all transitions starting from that state |
java.lang.String[] |
getStateNames()
Get all State names in an array of Strings. |
java.lang.String[] |
getTransitionNames()
Get all transition names in an array of Strings. |
java.lang.String |
lookAheadTransition(java.lang.String transition)
Given the name of the transition, look ahead the transition and return the predicted new state. |
void |
reset()
Reset the current workflow state to the initial state |
void |
setContext(WorkflowContext workflowContext)
Set the new context for the underlying workflow engine. |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
Field Detail |
protected java.lang.String TRANSITION_KEY_TOKEN
protected State currentState
protected State initialState
protected java.util.TreeMap transitions
protected java.util.TreeSet states
Constructor Detail |
public StateMachine()
Method Detail |
public java.lang.String doTransition(java.lang.String transitionName) throws IllegalWorkflowTransitionException
transition
- the name of the transition to be performedpublic WorkflowContext getContext()
public java.lang.String getCurrentStateName()
public java.lang.String getInitialStateName()
public java.lang.String[] getStateNames()
public java.lang.String[] getTransitionNames()
public java.lang.String lookAheadTransition(java.lang.String transition) throws IllegalWorkflowTransitionException
transition
- the name of the transition to be performedpublic java.lang.String[] getOutgoingTransitions(java.lang.String state) throws IllegalWorkflowTransitionException
state
- the name of the statepublic void reset()
public void setContext(WorkflowContext workflowContext)
WorkflowContext
- the new context for the underlying workflow engine.protected void addTransition(Transition t)
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