net.timewalker.ffmq4.common.message.selector.expression.operator

Class IsNullOperator

java.lang.Object

net.timewalker.ffmq4.common.message.selector.expression.SelectorNode

net.timewalker.ffmq4.common.message.selector.expression.operator.AbstractUnaryOperator

net.timewalker.ffmq4.common.message.selector.expression.operator.IsNullOperator

All Implemented Interfaces:

ConditionalExpression

Direct Known Subclasses:

IsNotNullOperator

public class IsNullOperator
extends AbstractUnaryOperator
implements ConditionalExpression

IsNullOperator

Field Summary

Fields inherited from class net.timewalker.ffmq4.common.message.selector.expression.operator.AbstractUnaryOperator

operand

Constructor Summary

Constructors

Constructor and Description
IsNullOperator(SelectorNode operand) Constructor

Method Summary

Modifier and Type	Method and Description
Object	evaluate(javax.jms.Message message) Evaluate the node
String	toString()

Methods inherited from class net.timewalker.ffmq4.common.message.selector.expression.SelectorNode

evaluateBoolean, evaluateNumeric, evaluateString, getNodeType, negate, parenthesize

Methods inherited from class java.lang.Object

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

Constructor Detail

IsNullOperator

public IsNullOperator(SelectorNode operand)
               throws javax.jms.InvalidSelectorException

Constructor

Throws:

javax.jms.InvalidSelectorException

Method Detail

evaluate

public Object evaluate(javax.jms.Message message)
                throws javax.jms.JMSException

Description copied from class: SelectorNode

Evaluate the node

Specified by:

evaluate in class SelectorNode

Throws:

javax.jms.JMSException

toString

public String toString()

Overrides:

toString in class Object