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> Unreal Engine API Reference > Developer > DerivedDataCache > FBuildAction

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FBuildAction

A build action is an immutable reference to a build function and its inputs.

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Inheritance Hierarchy

FBuildAction

FOptionalBuildAction

References

Module	DerivedDataCache
Header	/Engine/Source/Developer/DerivedDataCache/Public/DerivedDataBuildAction.h
Include	#include "DerivedDataBuildAction.h"

Syntax

class FBuildAction

Remarks

A build action is an immutable reference to a build function and its inputs.

The purpose of an action is to capture everything required to execute a derived data build for a fixed version of the build function and its constants and inputs.

The key for the action uniquely identifies the action and is derived by hashing the serialized compact binary representation of the action.

The keys for constants and inputs are names that are unique within the build action.

Constructors

No constructors are accessible with public or protected access.

Functions

	Name	Description
const FGuid ...	GetBuildSystemVersion()	Returns the version of the build system required to build this action.
FStringView	GetFunction()	Returns the name of the build function with which to build this action.
const FGuid ...	GetFunctionVersion()	Returns the version of the build function with which to build this action.
const FBuild...	GetKey()	Returns the key that uniquely identifies this build action.
FStringView	GetName()	Returns the name by which to identify this action for logging and profiling.
bool	HasConstants()	Returns whether the action has any constants.
bool	HasInputs()	Returns whether the action has any inputs.
void	IterateConstants ( TFunctionRef< void Key,... )	Visits every constant in order by key.
void	IterateInputs ( TFunctionRef< void Key,... )	Visits every input in order by key.
FOptionalBui...	Load ( FStringView Name, FCbObject&& Action )	Load a build action from compact binary.
void	Save ( FCbWriter& Writer )	Saves the build action to a compact binary object. Calls BeginObject and EndObject.