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

Class PerspectiveTransformExpression

java.lang.Object

com.inductiveautomation.perspective.gateway.binding.PerspectiveExpression

com.inductiveautomation.perspective.gateway.binding.transforms.expression.PerspectiveTransformExpression

All Implemented Interfaces:

InteractionListener, ExpressionSourceStackMonitor

public class PerspectiveTransformExpression
extends PerspectiveExpression

A PerspectiveExpression which has an additional execute(QualifiedValue) method to handle updating the underlying Expression with the incoming value and subsequently executing the expression which may be bound to the incoming value.

Nested Class Summary

Nested classes/interfaces inherited from class com.inductiveautomation.perspective.gateway.binding.PerspectiveExpression

PerspectiveExpression.PerspectiveExpressionCommonContext

Field Summary

Fields inherited from class com.inductiveautomation.perspective.gateway.binding.PerspectiveExpression

PARSER

Method Summary

Modifier and Type	Method	Description
static PerspectiveTransformExpression	create(BindingContext context, String source)	Factory method for creating the PerspectiveTransformExpression
QualifiedValue	execute(QualifiedValue input)	Passes the input QualifiedValue to the updated value consumer and then executes the underlying PerspectiveExpression

Methods inherited from class com.inductiveautomation.perspective.gateway.binding.PerspectiveExpression

childInteractionUpdated, childInteractionUpdated, evaluateExpression, execute, resolveReferences, shutdown, startup, startup

Methods inherited from class java.lang.Object

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

Method Details

create

public static PerspectiveTransformExpression create(BindingContext context,
 String source)
                                             throws ConfigurationException

Factory method for creating the PerspectiveTransformExpression

Parameters:

context - The BindingContext

source - The expression source as a String

Returns:

The new PerspectiveTransformExpression

Throws:

ConfigurationException - If there was a problem creating the new PerspectiveTransformExpression

execute

public QualifiedValue execute(QualifiedValue input)
                       throws ExpressionException

Passes the input QualifiedValue to the updated value consumer and then executes the underlying PerspectiveExpression

Throws:

ExpressionException

See Also:

• PerspectiveExpression.execute()
• Expression.execute()
• PerspectiveTransformExpression(BindingContext, Expression, List, Consumer)