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

Class VariableExpression

java.lang.Object

com.aquima.interactions.expressions.optimizer.nodes.VariableExpression

All Implemented Interfaces:

IExpressionNode, Serializable

public class VariableExpression
extends Object
implements IExpressionNode

A variable expression is an expression that usually identifies an active instance of an entity type.

Since:

6.4

Author:

O. Kerpershoek

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
VariableExpression(Identifier variable)	Constructs the variable for the specified identifier.

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.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

VariableExpression

public VariableExpression(Identifier variable)

Constructs the variable for the specified identifier.

Parameters:

variable - The identifier containing the entity 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.

toString

public String toString()

Overrides:

toString in class Object