com.facebook.litho.sections

Class ChangeSet

java.lang.Object

com.facebook.litho.sections.ChangeSet

public final class ChangeSet
extends Object

A ChangeSet represent a list of Change that has to be applied to a SectionTree.Target as the result of an update of a Section. A ChangeSet is provided in the OnDiff of a DiffSectionSpec to allow the ChangeSetSpec to define its changes based on old/new props and state.

Method Summary

Modifier and Type	Method and Description
static ChangeSet	acquireChangeSet(Section section, boolean enableStats)
void	addChange(Change change) Add a new Change to this ChangeSet.
void	delete(int index)
void	delete(int index, Object data)
void	deleteRange(int index, int count)
void	deleteRange(int index, int count, List<?> data)
Change	getChangeAt(int index)
int	getChangeCount()
com.facebook.litho.sections.ChangeSet.ChangeSetStats	getChangeSetStats()
void	insert(int index, RenderInfo renderInfo, TreeProps treeProps)
void	insert(int index, RenderInfo renderInfo, TreeProps treeProps, Object data)
void	insertRange(int index, int count, List<RenderInfo> renderInfos, TreeProps treeProps)
void	insertRange(int index, int count, List<RenderInfo> renderInfos, TreeProps treeProps, List<?> data)
void	move(int fromIndex, int toIndex)
void	move(int fromIndex, int toIndex, Object data)
void	update(int index, RenderInfo renderInfo, TreeProps treeProps)
void	update(int index, RenderInfo renderInfo, TreeProps treeProps, Object prevData, Object nextData)
void	updateRange(int index, int count, List<RenderInfo> renderInfos, TreeProps treeProps)
void	updateRange(int index, int count, List<RenderInfo> renderInfos, TreeProps treeProps, List<?> prevData, List<?> nextData)

Methods inherited from class java.lang.Object

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

Method Detail

getChangeAt

public Change getChangeAt(int index)

Returns:

the Change at index.

getChangeCount

public int getChangeCount()

Returns:

the number of Changes in this ChangeSet.

addChange

public void addChange(Change change)

Add a new Change to this ChangeSet. This is what a DiffSectionSpec would call in its OnDiff method to append a Change.

insert

public void insert(int index,
                   RenderInfo renderInfo,
                   TreeProps treeProps)

insert

public void insert(int index,
                   RenderInfo renderInfo,
                   TreeProps treeProps,
                   Object data)

insertRange

public void insertRange(int index,
                        int count,
                        List<RenderInfo> renderInfos,
                        TreeProps treeProps)

insertRange

public void insertRange(int index,
                        int count,
                        List<RenderInfo> renderInfos,
                        TreeProps treeProps,
                        List<?> data)

update

public void update(int index,
                   RenderInfo renderInfo,
                   TreeProps treeProps)

update

public void update(int index,
                   RenderInfo renderInfo,
                   TreeProps treeProps,
                   Object prevData,
                   Object nextData)

updateRange

public void updateRange(int index,
                        int count,
                        List<RenderInfo> renderInfos,
                        TreeProps treeProps)

updateRange

public void updateRange(int index,
                        int count,
                        List<RenderInfo> renderInfos,
                        TreeProps treeProps,
                        List<?> prevData,
                        List<?> nextData)

delete

public void delete(int index)

delete

public void delete(int index,
                   Object data)

deleteRange

public void deleteRange(int index,
                        int count)

deleteRange

public void deleteRange(int index,
                        int count,
                        List<?> data)

move

public void move(int fromIndex,
                 int toIndex)

move

public void move(int fromIndex,
                 int toIndex,
                 Object data)

getChangeSetStats

public com.facebook.litho.sections.ChangeSet.ChangeSetStats getChangeSetStats()

acquireChangeSet

public static ChangeSet acquireChangeSet(Section section,
                                         boolean enableStats)

Returns:

an empty ChangeSet.