Package org.springframework.webflow.definition.registry

Class FlowDefinitionRegistryImpl

java.lang.Object

org.springframework.webflow.definition.registry.FlowDefinitionRegistryImpl

All Implemented Interfaces:

FlowDefinitionLocator, FlowDefinitionRegistry

public class FlowDefinitionRegistryImpl
extends Object
implements FlowDefinitionRegistry

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

Author:

Keith Donald, Scott Andrews

Constructor Summary

Constructors

Constructor	Description
FlowDefinitionRegistryImpl()

Method Summary

Modifier and Type	Method	Description
boolean	containsFlowDefinition(String flowId)	Does this registry contain a flow with the given id? More specifically, is FlowDefinitionLocator.getFlowDefinition(String) able to obtain a flow definition instance for the given id? Will ask the parent registry if the flow cannot be found in this instance.
void	destroy()
FlowDefinition	getFlowDefinition(String id)	Lookup the flow definition with the specified id.
int	getFlowDefinitionCount()	Returns the number of flow definitions registered in this registry.
String[]	getFlowDefinitionIds()	Returns the ids of the flows registered in this registry.
FlowDefinitionRegistry	getParent()	Returns this registry's parent registry.
void	registerFlowDefinition(FlowDefinition definition)	Register a flow definition in this registry.
void	registerFlowDefinition(FlowDefinitionHolder definitionHolder)	Register a flow definition in this registry.
void	setParent(FlowDefinitionRegistry 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

FlowDefinitionRegistryImpl

public FlowDefinitionRegistryImpl()

Method Details

getFlowDefinition

public FlowDefinition getFlowDefinition(String id)
                                 throws NoSuchFlowDefinitionException,
FlowDefinitionConstructionException

Description copied from interface: FlowDefinitionLocator

Lookup the flow definition with the specified id.

Specified by:

getFlowDefinition in interface FlowDefinitionLocator

Parameters:

id - the flow definition identifier

Returns:

the flow definition

Throws:

NoSuchFlowDefinitionException - when the flow definition with the specified id does not exist

FlowDefinitionConstructionException - if there is a problem constructing the identified flow definition

containsFlowDefinition

public boolean containsFlowDefinition(String flowId)

Description copied from interface: FlowDefinitionRegistry

Does this registry contain a flow with the given id? More specifically, is FlowDefinitionLocator.getFlowDefinition(String) able to obtain a flow definition instance for the given id? Will ask the parent registry if the flow cannot be found in this instance.

Specified by:

containsFlowDefinition in interface FlowDefinitionRegistry

Parameters:

flowId - the id of the flow to query

Returns:

whether a flow definition with the given id is registered

getFlowDefinitionCount

public int getFlowDefinitionCount()

Description copied from interface: FlowDefinitionRegistry

Returns the number of flow definitions registered in this registry.

Specified by:

getFlowDefinitionCount in interface FlowDefinitionRegistry

Returns:

the flow definition count

getFlowDefinitionIds

public String[] getFlowDefinitionIds()

Description copied from interface: FlowDefinitionRegistry

Returns the ids of the flows registered in this registry.

Specified by:

getFlowDefinitionIds in interface FlowDefinitionRegistry

Returns:

the flow definition ids

getParent

public FlowDefinitionRegistry getParent()

Description copied from interface: FlowDefinitionRegistry

Returns this registry's parent registry.

Specified by:

getParent in interface FlowDefinitionRegistry

Returns:

the parent flow definition registry, or null if no parent is set

setParent

public void setParent(FlowDefinitionRegistry parent)

Description copied from interface: FlowDefinitionRegistry

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

Specified by:

setParent in interface FlowDefinitionRegistry

Parameters:

parent - the parent flow definition registry, may be null

registerFlowDefinition

public void registerFlowDefinition(FlowDefinitionHolder definitionHolder)

Description copied from interface: FlowDefinitionRegistry

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

Specified by:

registerFlowDefinition in interface FlowDefinitionRegistry

Parameters:

definitionHolder - a holder holding the flow definition to register

registerFlowDefinition

public void registerFlowDefinition(FlowDefinition definition)

Description copied from interface: FlowDefinitionRegistry

Register a flow definition in this registry.

Specified by:

registerFlowDefinition in interface FlowDefinitionRegistry

Parameters:

definition - the actual flow definition

destroy

public void destroy()

toString

public String toString()

Overrides:

toString in class Object