com.solacesystems.common.util.expression

Class BooleanExpressionArgument

java.lang.Object

com.solacesystems.common.util.expression.BooleanExpressionArgument

All Implemented Interfaces:

ExpressionArgument

public class BooleanExpressionArgument
extends Object
implements ExpressionArgument

Evaluates to TRUE or FALSE. This is typically used by another ExpressionArgument to push on the expression stack as the result of it being evaluated.

Field Summary

Fields

Modifier and Type	Field and Description
static BooleanExpressionArgument	FALSE Evaluates to FALSE in an expression stack.
static BooleanExpressionArgument	TRUE Evaluates to TRUE in an expression stack.

Constructor Summary

Constructors

Constructor and Description
BooleanExpressionArgument(boolean value) BooleanExpressionArgument constructor.

Method Summary

Modifier and Type	Method and Description
ExpressionArgument	evaluate(Expression expression, Object input) This method is called when an argument in the expression stack is evaluated.
boolean	getValue() Gets the Boolean value of this expression argument.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

TRUE

public static final BooleanExpressionArgument TRUE

Evaluates to TRUE in an expression stack.

FALSE

public static final BooleanExpressionArgument FALSE

Evaluates to FALSE in an expression stack.

Constructor Detail

BooleanExpressionArgument

public BooleanExpressionArgument(boolean value)

BooleanExpressionArgument constructor.

Parameters:

value - The Boolean value to take.

Method Detail

evaluate

public ExpressionArgument evaluate(Expression expression,
                                   Object input)

Description copied from interface: ExpressionArgument

This method is called when an argument in the expression stack is evaluated. The method Expression#evaluate(Object input) is used to evaluate the entire stack.

Specified by:

evaluate in interface ExpressionArgument

Parameters:

expression - The expression stack the argument is in.

input - The input argument to the expression stack.

Returns:

The resultant value to push back on the stack.

See Also:

Expression

getValue

public boolean getValue()

Gets the Boolean value of this expression argument.

Returns:

The Boolean value of this expression argument.

toString

public String toString()

Overrides:

toString in class Object