org.apache.lenya.workflow.impl
Class WorkflowEngineImpl

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

All Implemented Interfaces:

org.apache.lenya.workflow.WorkflowEngine

public class WorkflowEngineImpl
extends java.lang.Object
implements org.apache.lenya.workflow.WorkflowEngine

Workflow engine implementation.

Version:

$Id: WorkflowEngineImpl.java 473861 2006-11-12 03:51:14Z gregor $

Constructor Summary

WorkflowEngineImpl()

Method Summary

boolean	canFire(org.apache.lenya.workflow.Transition transition, org.apache.lenya.workflow.Workflow workflow, org.apache.lenya.workflow.Workflowable workflowable) Checks if a transition can fire.
boolean	canInvoke(org.apache.lenya.workflow.Workflowable workflowable, org.apache.lenya.workflow.Workflow workflow, java.lang.String event)
protected org.apache.lenya.workflow.Version	createNewVersion(org.apache.lenya.workflow.Workflowable workflowable, org.apache.lenya.workflow.Workflow workflow, java.lang.String event, java.lang.String destination) Creates a new version.
protected java.util.List	getFiringTransitions(org.apache.lenya.workflow.Workflowable workflowable, org.apache.lenya.workflow.Workflow workflow, java.lang.String event) Returns the transitions that would fire in a certain situation.
void	invoke(org.apache.lenya.workflow.Workflowable workflowable, org.apache.lenya.workflow.Workflow workflow, java.lang.String event)

Methods inherited from class java.lang.Object

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

Constructor Detail

WorkflowEngineImpl

public WorkflowEngineImpl()

Method Detail

canInvoke

public boolean canInvoke(org.apache.lenya.workflow.Workflowable workflowable,
                         org.apache.lenya.workflow.Workflow workflow,
                         java.lang.String event)
                  throws org.apache.lenya.workflow.WorkflowException

Specified by:

canInvoke in interface org.apache.lenya.workflow.WorkflowEngine

Throws:

org.apache.lenya.workflow.WorkflowException

See Also:

WorkflowEngine.canInvoke(org.apache.lenya.workflow.Workflowable, org.apache.lenya.workflow.Workflow, java.lang.String)

invoke

public void invoke(org.apache.lenya.workflow.Workflowable workflowable,
                   org.apache.lenya.workflow.Workflow workflow,
                   java.lang.String event)
            throws org.apache.lenya.workflow.WorkflowException

Specified by:

invoke in interface org.apache.lenya.workflow.WorkflowEngine

Throws:

org.apache.lenya.workflow.WorkflowException

See Also:

WorkflowEngine.invoke(org.apache.lenya.workflow.Workflowable, org.apache.lenya.workflow.Workflow, java.lang.String)

createNewVersion

protected org.apache.lenya.workflow.Version createNewVersion(org.apache.lenya.workflow.Workflowable workflowable,
                                                             org.apache.lenya.workflow.Workflow workflow,
                                                             java.lang.String event,
                                                             java.lang.String destination)
                                                      throws org.apache.lenya.workflow.WorkflowException

Creates a new version.

Parameters:

workflowable - The workflowable.

workflow - The workflow.

event - The event.

destination - The destination.

Returns:

A version.

Throws:

org.apache.lenya.workflow.WorkflowException - if an error occurs.

getFiringTransitions

protected java.util.List getFiringTransitions(org.apache.lenya.workflow.Workflowable workflowable,
                                              org.apache.lenya.workflow.Workflow workflow,
                                              java.lang.String event)
                                       throws org.apache.lenya.workflow.WorkflowException

Returns the transitions that would fire in a certain situation.

Parameters:

workflowable - The workflowable.

workflow - The workflow.

event - The event.

Returns:

A list of transitions.

Throws:

org.apache.lenya.workflow.WorkflowException - if an error occurs.

canFire

public boolean canFire(org.apache.lenya.workflow.Transition transition,
                       org.apache.lenya.workflow.Workflow workflow,
                       org.apache.lenya.workflow.Workflowable workflowable)
                throws org.apache.lenya.workflow.WorkflowException

Checks if a transition can fire.

Parameters:

transition - The transition.

workflow - The workflow.

workflowable - The workflowable.

Returns:

A boolean value.

Throws:

org.apache.lenya.workflow.WorkflowException - if an error occurs.