Runtime for dummy binding target. More...

#include <kanzi/core.ui/binding/dummy_binding_target_runtime.hpp>

Inheritance diagram for kanzi::DummyBindingTargetRuntime:

Static Public Member Functions
static BindingTargetRuntimePtr	create ()
	Creates a dummy binding target runtime.

Protected Member Functions
void	attachForWriteOverride () override
	BindingTargetRuntime::attachForWriteOverride() implementation.

void	detachOverride () override
	BindingTargetRuntime::detachOverride() implementation.

	DummyBindingTargetRuntime ()=default
	Constructor.

bool	isConnectedOverride () override
	BindingTargetRuntime::isConnectedOverride() implementation.

bool	writeOverride (const Variant &value) override
	BindingTargetRuntime::writeOverride() implementation.

Protected Member Functions inherited from kanzi::BindingTargetRuntime
virtual void	attachForReadOverride ()
	Implementation-dependent attach.

	BindingTargetRuntime ()=default
	Constructor.

virtual bool	readOverride (Variant &value)
	Implementation-dependent read.

Additional Inherited Members
Public Types inherited from kanzi::BindingTargetRuntime
using	BindingProcessorRuntimeConstIterator
	Binding processor iterator type.

using	BindingProcessorRuntimeContainer
	Binding processor container type.

Public Member Functions inherited from kanzi::BindingTargetRuntime
void	attachForRead ()
	Attaches the binding target runtime for reading.

void	attachForWrite ()
	Attaches the binding target runtime for writing.

BindingProcessorRuntimeConstIterator	beginProcessorRuntimes () const
	Gets an iterator to the beginning of binding processor runtimes.

void	createBindingProcessorsRuntimes (const AbstractBinding &binding)
	Creates a processor runtime for each BindingProcessor held by the binding parameter.

void	detach ()
	Detaches binding target runtime.

BindingProcessorRuntimeConstIterator	endProcessorRuntimes () const
	Gets an iterator to the end of binding processor runtimes.

AbstractBindingRuntime *	getBindingRuntime () const
	Gets the binding runtime.

BindingLookupContext &	getLookupContext () const
	Gets the lookup context.

bool	isConnected ()
	Indicates whether this source is connected.

bool	read (Variant &value)
	Reads a value from the binding target.

void	setBindingRuntime (AbstractBindingRuntime &bindingRuntime)
	Sets the binding runtime.

bool	write (const Variant &value)
	Writes a value to the binding target.

virtual	~BindingTargetRuntime ()=default
	Destructor.

Protected Attributes inherited from kanzi::BindingTargetRuntime
AbstractBindingRuntime *	m_bindingRuntime
	Abstract binding runtime for this target.

BindingProcessorRuntimeContainer	m_processorRuntimes
	Binding processors runtimes (for the target, backward direction).

Detailed Description

Runtime for dummy binding target.

Dummy binding target runtime is used when the binding has side effects that need to be executed, but writing to target value is not important. It is most commonly used with ToSourceBinding, that writes to a push source, but does not necessarily write a value in the target Node or RenderPass.

Dummy binding targets may also be used if the binding has other side effects that make writing the result value unnecessary, for example a CallbackBindingProcessor that executes user-defined code for the binding result value. Also ToSourceBinding is commonly used with DummyBindingTargetRuntime.

DummyBindingTargetRuntime is always considered to be connected.