org.codehaus.activemq.filter
Class LogicExpression

java.lang.Object
  extended byorg.codehaus.activemq.filter.BinaryExpression
      extended byorg.codehaus.activemq.filter.LogicExpression
All Implemented Interfaces:
BooleanExpression, Expression

public abstract class LogicExpression
extends BinaryExpression
implements BooleanExpression

A filter performing a comparison of two objects

Version:
$Revision: 1.1 $

Field Summary
 
Fields inherited from class org.codehaus.activemq.filter.BinaryExpression
left, right
 
Constructor Summary
LogicExpression(BooleanExpression left, BooleanExpression right)
           
 
Method Summary
static BooleanExpression createAND(BooleanExpression lvalue, BooleanExpression rvalue)
           
static BooleanExpression createOR(BooleanExpression lvalue, BooleanExpression rvalue)
           
protected abstract  Object evaluate(Boolean lv, Boolean rv)
           
 Object evaluate(Message message)
           
 
Methods inherited from class org.codehaus.activemq.filter.BinaryExpression
equals, getExpressionSymbol, getLeft, getRight, hashCode, setLeft, setRight, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

LogicExpression

public LogicExpression(BooleanExpression left,
                       BooleanExpression right)
Parameters:
left -
right -
Method Detail

createOR

public static BooleanExpression createOR(BooleanExpression lvalue,
                                         BooleanExpression rvalue)

createAND

public static BooleanExpression createAND(BooleanExpression lvalue,
                                          BooleanExpression rvalue)

evaluate

public Object evaluate(Message message)
                throws JMSException
Specified by:
evaluate in interface Expression
Returns:
the value of this expression
Throws:
JMSException

evaluate

protected abstract Object evaluate(Boolean lv,
                                   Boolean rv)


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