com.facebook.litho.sections

Class Section.Builder<T extends Section.Builder<T>>

java.lang.Object

com.facebook.litho.sections.Section.Builder<T>

Direct Known Subclasses:

DataDiffSection.Builder, HideableDataDiffSection.Builder, SingleComponentSection.Builder

Enclosing class:

Section

public abstract static class Section.Builder<T extends Section.Builder<T>>
extends Object

A builder to build a Section with a SectionLifecycle L. Generated lifecycle classes will expose a create() method to access a builder and will add methods to the builder to set all the props defined in the GroupSectionSpec/ DiffSectionSpec. By default the builder exposes a method that the parent can use to specify an key for its children. The key should be set every time a parent might have more children with the same SectionLifecycle.

Field Summary

Fields

Modifier and Type	Field and Description
protected ResourceResolver	mResourceResolver

Constructor Summary

Constructors

Constructor and Description
Builder()

Method Summary

Modifier and Type	Method and Description
abstract Section	build()
protected static void	checkArgs(int requiredPropsCount, BitSet required, String[] requiredPropsNames) Checks that all the required props are supplied, and if not throws a useful exception
abstract T	getThis()
T	handle(Handle handle)
protected void	init(SectionContext context, Section section)
T	key(String key) Sets the key of this Section local to its parent.
protected T	loadingEventHandler(EventHandler<LoadingEvent> loadingEventHandler)
protected void	release()

Methods inherited from class java.lang.Object

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

Field Detail

mResourceResolver

protected ResourceResolver mResourceResolver

Constructor Detail

Builder

public Builder()

Method Detail

init

protected void init(SectionContext context,
                    Section section)

handle

public T handle(Handle handle)

key

public T key(String key)

Sets the key of this Section local to its parent.

loadingEventHandler

protected T loadingEventHandler(EventHandler<LoadingEvent> loadingEventHandler)

getThis

public abstract T getThis()

build

public abstract Section build()

Returns:

The immutable Section.

release

protected void release()

checkArgs

protected static void checkArgs(int requiredPropsCount,
                                BitSet required,
                                String[] requiredPropsNames)

Checks that all the required props are supplied, and if not throws a useful exception

Parameters:

requiredPropsCount - expected number of props

required - the bit set that identifies which props have been supplied

requiredPropsNames - the names of all props used for a useful error message