Package org.springframework.webflow.engine.model.registry

Class FlowModelRegistryImpl

java.lang.Object

org.springframework.webflow.engine.model.registry.FlowModelRegistryImpl

All Implemented Interfaces:

FlowModelHolderLocator, FlowModelLocator, FlowModelRegistry

public class FlowModelRegistryImpl
extends Object
implements FlowModelRegistry, FlowModelHolderLocator

A generic registry implementation for housing one or more flow models.

Author:

Keith Donald, Scott Andrews, Rossen Stoyanchev

Constructor Summary

Constructors

Constructor	Description
FlowModelRegistryImpl()

Method Summary

Modifier and Type	Method	Description
FlowModel	getFlowModel(String id)	Lookup the flow model with the specified id.
FlowModelHolder	getFlowModelHolder(String id)	Lookup the FlowModelHolder with the specified id.
void	registerFlowModel(String id, FlowModelHolder modelHolder)	Register a flow model in this registry.
void	setParent(FlowModelRegistry parent)	Sets this registry's parent registry.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

FlowModelRegistryImpl

public FlowModelRegistryImpl()

Method Details

getFlowModel

public FlowModel getFlowModel(String id)
                       throws NoSuchFlowModelException

Description copied from interface: FlowModelLocator

Lookup the flow model with the specified id.

Specified by:

getFlowModel in interface FlowModelLocator

Parameters:

id - the flow model identifier

Returns:

the flow mode

Throws:

NoSuchFlowModelException - when the flow model with the specified id does not exist

setParent

public void setParent(FlowModelRegistry parent)

Description copied from interface: FlowModelRegistry

Sets this registry's parent registry. When asked by a client to locate a flow model this registry will query it's parent if it cannot fulfill the lookup request itself.

Specified by:

setParent in interface FlowModelRegistry

Parameters:

parent - the parent flow model registry, may be null

registerFlowModel

public void registerFlowModel(String id,
 FlowModelHolder modelHolder)

Description copied from interface: FlowModelRegistry

Register a flow model in this registry. Registers a "holder", not the Flow model itself. This allows the actual Flow model to be loaded lazily only when needed, and also rebuilt at runtime when its underlying resource changes without re-deploy.

Specified by:

registerFlowModel in interface FlowModelRegistry

Parameters:

id - the id to register the flow model under

modelHolder - a holder holding the flow model to register

getFlowModelHolder

public FlowModelHolder getFlowModelHolder(String id)
                                   throws NoSuchFlowModelException

Description copied from interface: FlowModelHolderLocator

Lookup the FlowModelHolder with the specified id.

Specified by:

getFlowModelHolder in interface FlowModelHolderLocator

Parameters:

id - the flow model identifier

Returns:

the flow model holder

Throws:

NoSuchFlowModelException - when the flow model with the specified id does not exist

toString

public String toString()

Overrides:

toString in class Object