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org.apache.lenya.workflow.impl
Class WorkflowImpl

java.lang.Object
  org.apache.lenya.workflow.impl.WorkflowImpl

All Implemented Interfaces:

Workflow

public class WorkflowImpl
extends java.lang.Object
implements Workflow

Implementation of a workflow schema.

Field Summary

Fields inherited from interface org.apache.lenya.workflow.Workflow

DEFAULT_PREFIX, NAMESPACE

Constructor Summary

protected

WorkflowImpl(StateImpl initialState) Creates a new instance of WorkflowImpl.

Method Summary

protected void	addEvent(EventImpl event) Adds an event.
protected void	addTransition(TransitionImpl transition) Adds a transition.
protected void	addVariable(BooleanVariableImpl variable) Adds a variable.
protected boolean	containsState(State state) Checks if this workflow contains a state.
protected State	getDestination(Transition transition) Returns the destination state of a transition.
EventImpl	getEvent(java.lang.String name) Returns the event for a certain event name.
State	getInitialState() Returns the initial state of this workflow.
Transition[]	getLeavingTransitions(State state) Returns the transitions that leave a state.
protected StateImpl	getState(java.lang.String name) Returns the state with a certain name.
protected StateImpl[]	getStates() Returns the states.
protected TransitionImpl[]	getTransitions() Returns the transitions.
BooleanVariableImpl	getVariable(java.lang.String name) Returns the variable for a certain name.
java.lang.String[]	getVariableNames() Returns the variable names.
protected BooleanVariableImpl[]	getVariables() Returns the variables.

Methods inherited from class java.lang.Object

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

Constructor Detail

WorkflowImpl

protected WorkflowImpl(StateImpl initialState)

Creates a new instance of WorkflowImpl.

Parameters:

initialState - the initial state of the workflow.

Method Detail

getInitialState

public State getInitialState()

Returns the initial state of this workflow.

Specified by:

getInitialState in interface Workflow

Returns:

The initial state.

addTransition

protected void addTransition(TransitionImpl transition)

Adds a transition.

Parameters:

transition - The transition.

getTransitions

protected TransitionImpl[] getTransitions()

Returns the transitions.

Returns:

An array of transitions.

getDestination

protected State getDestination(Transition transition)

Returns the destination state of a transition.

Parameters:

transition - A transition.

Returns:

The destination state.

getLeavingTransitions

public Transition[] getLeavingTransitions(State state)

Returns the transitions that leave a state.

Specified by:

getLeavingTransitions in interface Workflow

Parameters:

state - A state.

Returns:

The transitions that leave the state.

containsState

protected boolean containsState(State state)

Checks if this workflow contains a state.

Parameters:

state - The state to check.

Returns:

true if the state is contained, false otherwise.

getStates

protected StateImpl[] getStates()

Returns the states.

Returns:

An array of states.

getState

protected StateImpl getState(java.lang.String name)
                      throws WorkflowException

Returns the state with a certain name.

Parameters:

name - The state name.

Returns:

A state.

Throws:

WorkflowException - when the state does not exist.

addEvent

protected void addEvent(EventImpl event)

Adds an event.

Parameters:

event - An event.

getEvent

public EventImpl getEvent(java.lang.String name)
                   throws WorkflowException

Returns the event for a certain event name.

Parameters:

name - A string.

Returns:

The event with this name.

Throws:

WorkflowException - when no event with the given name exists.

addVariable

protected void addVariable(BooleanVariableImpl variable)

Adds a variable.

Parameters:

variable - A variable.

getVariable

public BooleanVariableImpl getVariable(java.lang.String name)
                                throws WorkflowException

Returns the variable for a certain name.

Parameters:

name - The name of the variable.

Returns:

A variable.

Throws:

WorkflowException - if no variable with the given name exists.

getVariables

protected BooleanVariableImpl[] getVariables()

Returns the variables.

Returns:

An array of variables.

getVariableNames

public java.lang.String[] getVariableNames()

Description copied from interface: Workflow

Returns the variable names.

Specified by:

getVariableNames in interface Workflow

Returns:

A string array.

See Also:

Workflow.getVariableNames()