org.togglz.core.repository.composite

Class CompositeStateRepository

java.lang.Object

org.togglz.core.repository.composite.CompositeStateRepository

All Implemented Interfaces:

StateRepository

public class CompositeStateRepository
extends Object
implements StateRepository

A StateRepository that is composed of one or more underlying repositories. For getFeatureState(Feature) this implementation returns the first non-null value from the underlying repositories, searched in the order specified during construction. The setFeatureState(FeatureState) method calls the corresponding method on the last underlying repository. If you don't want setFeatureState(FeatureState) to update a persistent repository, consider using an InMemoryStateRepository as the last argument. *

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CompositeStateRepository.IterationOrder
static interface	CompositeStateRepository.RepositorySelector Provides a means to select from a collection of state repositories.
static class	CompositeStateRepository.SetterSelection

Constructor Summary

Constructors

Constructor and Description
CompositeStateRepository(StateRepository... repositories) Creates a composite state repository using the specified underlying state repositories.

Method Summary

Modifier and Type	Method and Description
FeatureState	getFeatureState(Feature feature) Returns the first non-null feature state as determined by the current iteration order.
void	setFeatureState(FeatureState featureState) Sets the feature state on the repositories returned by the current setter selection.
void	setIterationOrder(CompositeStateRepository.RepositorySelector iterationOrder) Sets the order this composite calls to get feature states.
void	setSetterSelection(CompositeStateRepository.RepositorySelector setterSelection) Sets the selector for which state repositories to call to set a feature state.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositeStateRepository

public CompositeStateRepository(StateRepository... repositories)

Creates a composite state repository using the specified underlying state repositories.

Parameters:

repositories - state repositories

Method Detail

setIterationOrder

public void setIterationOrder(CompositeStateRepository.RepositorySelector iterationOrder)

Sets the order this composite calls to get feature states. If not set the default iteration order is first-in-first-out.

Parameters:

iterationOrder - the iteration order

See Also:

CompositeStateRepository.IterationOrder

setSetterSelection

public void setSetterSelection(CompositeStateRepository.RepositorySelector setterSelection)

Sets the selector for which state repositories to call to set a feature state. If not set the default is the last repository in this composite.

Parameters:

setterSelection - the selector

See Also:

CompositeStateRepository.SetterSelection

getFeatureState

public FeatureState getFeatureState(Feature feature)

Returns the first non-null feature state as determined by the current iteration order.

Specified by:

getFeatureState in interface StateRepository

Parameters:

feature - The feature to read the state for

Returns:

The persisted feature state or null

See Also:

setIterationOrder(RepositorySelector)

setFeatureState

public void setFeatureState(FeatureState featureState)

Sets the feature state on the repositories returned by the current setter selection.

Specified by:

setFeatureState in interface StateRepository

Parameters:

featureState - The feature state to persist

See Also:

setSetterSelection(RepositorySelector)