Package com.aquima.interactions.expressions.optimizer.nodes

Class InstanceOfExpression

java.lang.Object

com.aquima.interactions.expressions.optimizer.nodes.InstanceOfExpression

All Implemented Interfaces:

IExpressionNode, Serializable

public class InstanceOfExpression
extends Object
implements IExpressionNode

This instance of expression can be used to check if an (entity) instance is of a specified type.

Since:

7.1

Author:

O. Kerpershoek

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
InstanceOfExpression(IExpressionNode instanceExpr, IExpressionNode typeExpr)	Constructs the expression with the required arguments.

Method Summary

Modifier and Type	Method	Description
IValue	evaluate(IValueEnvironment environment)	This method evaluates the node using the environment passed as argument and returns the result as a value or null if the result is unknown.

Methods inherited from class java.lang.Object

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

Constructor Details

InstanceOfExpression

public InstanceOfExpression(IExpressionNode instanceExpr,
 IExpressionNode typeExpr)

Constructs the expression with the required arguments.

Parameters:

instanceExpr - Expression evaluating to an instance.

typeExpr - Expression evaluating to a type name.

Method Details

evaluate

public IValue evaluate(IValueEnvironment environment)

Description copied from interface: IExpressionNode

This method evaluates the node using the environment passed as argument and returns the result as a value or null if the result is unknown.

Specified by:

evaluate in interface IExpressionNode

Parameters:

environment - The environment that should be used when evaluating the node.

Returns:

The result of the evaluation, or null if the result is unknown.