org.springframework.webflow.definition.registry
Interface FlowDefinitionRegistry

All Superinterfaces:

FlowDefinitionLocator

All Known Implementing Classes:

FlowDefinitionRegistryImpl

public interface FlowDefinitionRegistry
extends FlowDefinitionLocator

A container of flow definitions. Extends FlowDefinitionLocator for accessing registered Flow definitions for execution at runtime.

Flow definition registries can be configured with a "parent" registry to provide a hook into a larger flow definition registry hierarchy.

Author:

Keith Donald

Method Summary

boolean	containsFlowDefinition(java.lang.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.
int	getFlowDefinitionCount() Returns the number of flow definitions registered in this registry.
java.lang.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.

Methods inherited from interface org.springframework.webflow.definition.registry.FlowDefinitionLocator

getFlowDefinition

Method Detail

getFlowDefinitionCount

int getFlowDefinitionCount()

Returns the number of flow definitions registered in this registry.

Returns:

the flow definition count

getFlowDefinitionIds

java.lang.String[] getFlowDefinitionIds()

Returns the ids of the flows registered in this registry.

Returns:

the flow definition ids

getParent

FlowDefinitionRegistry getParent()

Returns this registry's parent registry.

Returns:

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

containsFlowDefinition

boolean containsFlowDefinition(java.lang.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.

Parameters:

flowId - the id of the flow to query

Returns:

whether a flow definition with the given id is registered

setParent

void setParent(FlowDefinitionRegistry parent)

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.

Parameters:

parent - the parent flow definition registry, may be null

registerFlowDefinition

void registerFlowDefinition(FlowDefinitionHolder definitionHolder)

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.

Parameters:

definitionHolder - a holder holding the flow definition to register

registerFlowDefinition

void registerFlowDefinition(FlowDefinition definition)

Register a flow definition in this registry.

Parameters:

definition - the actual flow definition