com.facebook.litho

Class MeasuredResultCache

java.lang.Object

com.facebook.litho.MeasuredResultCache

public class MeasuredResultCache
extends java.lang.Object

Read & write layout result cache used during render phase for caching measured results that happen during component-measure. This cache can be accessed via components or litho-nodes.

Constructor Summary

Constructors

Constructor and Description
MeasuredResultCache()
MeasuredResultCache(MeasuredResultCache delegateCache) Create a new MeasureResultCache with a delegate cache.

Method Summary

Modifier and Type	Method and Description
void	addCachedResult(Component component, LithoNode node, LithoLayoutResult layoutResult) Add a cached result to the cache.
void	addCachedResult(int componentId, LithoNode node, LithoLayoutResult layoutResult) Add a cached result to the cache.
void	clearCache(Component component) Cleares the cache generated for the given component.
void	clearCache(int componentId) Cleares the cache generated for the given component ID.
void	freezeCache() Marks this cache as frozen, meaning it is illegal to write new values into it, and should be used as read-only.
LithoNode	getCachedNode(Component component) Returns the cached LithoNode from a given component.
LithoNode	getCachedNode(int componentId) Returns the cached LithoNode from a given component ID.
LithoLayoutResult	getCachedResult(Component component) Returns the cached layout result for the given component, or null if it does not exist.
LithoLayoutResult	getCachedResult(int componentId) Returns the cached layout result for the given component ID, or null if it does not exist.
LithoLayoutResult	getCachedResult(LithoNode node) Returns the cached layout result for the given node, or null if it does not exist.
boolean	hasCachedNode(Component component) Return true if there exists a cached layout result for the given component.
boolean	hasCachedNode(int componentId) Return true if there exists a cached layout result for the given component ID.
boolean	hasCachedNode(LithoNode node) Return true if there exists a cached layout result for the given LithoNode.

Methods inherited from class java.lang.Object

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

Constructor Detail

MeasuredResultCache

public MeasuredResultCache()

MeasuredResultCache

public MeasuredResultCache(MeasuredResultCache delegateCache)

Create a new MeasureResultCache with a delegate cache. When reading caches, if they are not found in this cache instance, the delegate cache is checked.

Method Detail

freezeCache

public void freezeCache()

Marks this cache as frozen, meaning it is illegal to write new values into it, and should be used as read-only. Attempting to write to a frozen cache will produce an illegal state exception.

addCachedResult

public void addCachedResult(Component component,
                            LithoNode node,
                            LithoLayoutResult layoutResult)

Add a cached result to the cache.

Parameters:

component - The component from which the result was generated

node - The node generated from the component

layoutResult - The layout result

addCachedResult

public void addCachedResult(int componentId,
                            LithoNode node,
                            LithoLayoutResult layoutResult)

Add a cached result to the cache.

Parameters:

componentId - The component ID from which the result was generated

node - The node generated from the component

layoutResult - The layout result

hasCachedNode

public boolean hasCachedNode(Component component)

Return true if there exists a cached layout result for the given component.

hasCachedNode

public boolean hasCachedNode(int componentId)

Return true if there exists a cached layout result for the given component ID.

hasCachedNode

public boolean hasCachedNode(LithoNode node)

Return true if there exists a cached layout result for the given LithoNode.

getCachedNode

public LithoNode getCachedNode(Component component)

Returns the cached LithoNode from a given component.

getCachedNode

public LithoNode getCachedNode(int componentId)

Returns the cached LithoNode from a given component ID.

getCachedResult

public LithoLayoutResult getCachedResult(Component component)

Returns the cached layout result for the given component, or null if it does not exist.

getCachedResult

public LithoLayoutResult getCachedResult(int componentId)

Returns the cached layout result for the given component ID, or null if it does not exist.

getCachedResult

public LithoLayoutResult getCachedResult(LithoNode node)

Returns the cached layout result for the given node, or null if it does not exist.

clearCache

public void clearCache(Component component)

Cleares the cache generated for the given component.

clearCache

public void clearCache(int componentId)

Cleares the cache generated for the given component ID.