Package com.inductiveautomation.perspective.gateway.binding.expression

Class ExpressionBinding

java.lang.Object

com.inductiveautomation.perspective.gateway.binding.expression.ExpressionBinding

All Implemented Interfaces:

Binding

public class ExpressionBinding
extends Object
implements Binding

A Perspective Binding for Ignition Expressions.

Field Summary

Fields inherited from interface com.inductiveautomation.perspective.gateway.api.Binding

BAD_CONFIG, BAD_REF, BIDIRECTIONAL_KEY, INITIAL_VALUE, MDC_BINDING_TARGET, NOT_FOUND

Method Summary

Modifier and Type	Method	Description
void	onUserRefresh()	Called to prompt the binding to produce a value as soon as possible.
Collection<PropertyReference>	resolveReferences()
void	shutdown()	Shut down the binding.
void	startup()	Start up the binding.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.inductiveautomation.perspective.gateway.api.Binding

isBidirectional, onTargetUpdated

Method Details

resolveReferences

public Collection<PropertyReference> resolveReferences()

Specified by:

resolveReferences in interface Binding

startup

public void startup()

Description copied from interface: Binding

Start up the binding. Will be called on-queue

Specified by:

startup in interface Binding

shutdown

public void shutdown()

Description copied from interface: Binding

Shut down the binding. Will be called on-queue

Specified by:

shutdown in interface Binding

onUserRefresh

public void onUserRefresh()

Description copied from interface: Binding

Called to prompt the binding to produce a value as soon as possible. This _not_ the normal way that bindings work. Bindings are expected to produce a value un-prompted after startup, and then again whenever they feel is appropriate. This is there to allow the user to call component.refreshBinding(property) and prompt a non-polling binding to run.

Specified by:

onUserRefresh in interface Binding