com.facebook.litho

Class StateHandler

java.lang.Object

com.facebook.litho.StateHandler

public class StateHandler
extends Object

Holds information about the current State of the components in a Component Tree.

Field Summary

Fields

Modifier and Type	Field and Description
HashSet<String>	mNeededStateContainers Contains all keys of components that were present in the current ComponentTree and therefore their StateContainer needs to be kept around.
Map<String,StateContainer>	mStateContainers Maps a component key to a component object that retains the current state values for that key.

Constructor Summary

Constructors

Constructor and Description
StateHandler()
StateHandler(StateHandler stateHandler)

Method Summary

Modifier and Type	Method and Description
static StateHandler	createNewInstance(StateHandler stateHandler)
static StateHandler	createShallowCopyForLazyStateUpdates(StateHandler stateHandler)
boolean	isEmpty()

Methods inherited from class java.lang.Object

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

Field Detail

mStateContainers

public Map<String,StateContainer> mStateContainers

Maps a component key to a component object that retains the current state values for that key.

mNeededStateContainers

public HashSet<String> mNeededStateContainers

Contains all keys of components that were present in the current ComponentTree and therefore their StateContainer needs to be kept around.

Constructor Detail

StateHandler

public StateHandler()

StateHandler

public StateHandler(StateHandler stateHandler)

Method Detail

createNewInstance

public static StateHandler createNewInstance(StateHandler stateHandler)

createShallowCopyForLazyStateUpdates

public static StateHandler createShallowCopyForLazyStateUpdates(StateHandler stateHandler)

isEmpty

public boolean isEmpty()