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

Class ConversionExpression

java.lang.Object

com.aquima.interactions.expressions.optimizer.nodes.ConversionExpression

All Implemented Interfaces:

IExpressionNode, Serializable

public class ConversionExpression
extends Object
implements IExpressionNode

The conversion expression is used to change the result data type of an expression.

Since:

6.4

Author:

O. Kerpershoek

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ConversionExpression(IExpressionNode expr, DataType requestedType)	Constructs the conversion 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.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ConversionExpression

public ConversionExpression(IExpressionNode expr,
                            DataType requestedType)

Constructs the conversion expression with the required arguments.

Parameters:

expr - The expression who's result should be converted to another data type.

requestedType - The data type the result should be converted to.

Method Detail

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