org.eclipse.emf.ecp.view.internal.rule
Class RuleRegistry<T extends Rule>

java.lang.Object
  org.eclipse.emf.ecp.view.internal.rule.RuleRegistry<T>

Type Parameters:

T - the actual Rule type

public class RuleRegistry<T extends Rule>
extends Object

Rule registry that maintains which VElements are affected if a setting is changed.

Author:

emueller, jfaltermeier

Constructor Summary

RuleRegistry(ViewModelContext context)
Default constructor.

Method Summary

Map<T,VElement>	getAffectedRenderables(UniqueSetting setting) Returns all rules that would be affected if the value of given setting is changed.
Set<UniqueSetting>	getSettings() Returns the settings of this registry.
Set<UniqueSetting>	register(VElement renderable, T rule, Condition condition, org.eclipse.emf.ecore.EObject domainModel) Creates a setting from the given EObject and the LeafCondition and register it with the VElement.
VElement	removeCondition(Condition condition) Removes the given condition from the registry.
void	removeRenderable(VElement renderable) Removes the given VElement from the registry.
VElement	removeRule(T rule) Removes the given rule from the registry.

Methods inherited from class java.lang.Object

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

Constructor Detail

RuleRegistry

public RuleRegistry(ViewModelContext context)

Default constructor.

Parameters:

context - the view model context of the RuleService using this registry

Method Detail

register

public Set<UniqueSetting> register(VElement renderable,
                                   T rule,
                                   Condition condition,
                                   org.eclipse.emf.ecore.EObject domainModel)

Creates a setting from the given EObject and the LeafCondition and register it with the VElement.

Parameters:

renderable - the VElement to be updated in case the condition changes

rule - the parent rule holding the LeafCondition

condition - contains the attribute that the condition is depending on

domainModel - the domain object that owns the attribute possibly being changed

Returns:

the registered UniqueSettings

removeRule

public VElement removeRule(T rule)

Removes the given rule from the registry.

Parameters:

rule - the rule to be removed

Returns:

the VElement that belonged to the removed rule

removeRenderable

public void removeRenderable(VElement renderable)

Removes the given VElement from the registry.

Parameters:

renderable - the renderable to be removed

removeCondition

public VElement removeCondition(Condition condition)

Removes the given condition from the registry.

Parameters:

condition - the condition to be removed

Returns:

the VElement that belonged to the removed condition

getSettings

public Set<UniqueSetting> getSettings()

Returns the settings of this registry.

Returns:

the settings of this registry.

getAffectedRenderables

public Map<T,VElement> getAffectedRenderables(UniqueSetting setting)

Returns all rules that would be affected if the value of given setting is changed.

Parameters:

setting - the setting

Returns:

a list of VElements that are affected of the setting change