ca.uwaterloo.cs.ql.interp
Class RelationalExpressionNode

java.lang.Object
  extended by ca.uwaterloo.cs.ql.interp.SyntaxTreeNode
      extended by ca.uwaterloo.cs.ql.interp.ExpressionNode
          extended by ca.uwaterloo.cs.ql.interp.RelationalExpressionNode

public class RelationalExpressionNode
extends ExpressionNode


Constructor Summary
RelationalExpressionNode(int op, ExpressionNode left, ExpressionNode right)
           
 
Method Summary
 Value evaluate(Env env)
           
 void propagate(Env env, java.lang.Object userObj)
           
 java.lang.String toString()
           
 
Methods inherited from class ca.uwaterloo.cs.ql.interp.SyntaxTreeNode
getLocation, setLocation, strLocation
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

RelationalExpressionNode

public RelationalExpressionNode(int op,
                                ExpressionNode left,
                                ExpressionNode right)
Method Detail

propagate

public void propagate(Env env,
                      java.lang.Object userObj)
               throws EvaluationException
Specified by:
propagate in class SyntaxTreeNode
Throws:
EvaluationException

evaluate

public Value evaluate(Env env)
               throws EvaluationException
Specified by:
evaluate in class SyntaxTreeNode
Throws:
EvaluationException

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object