ca.uwaterloo.cs.ql.interp.select
Class SelectExpressionNode
java.lang.Object
ca.uwaterloo.cs.ql.interp.SyntaxTreeNode
ca.uwaterloo.cs.ql.interp.ExpressionNode
ca.uwaterloo.cs.ql.interp.select.SelectExpressionNode
- All Implemented Interfaces:
- SelectContext
public class SelectExpressionNode
- extends ExpressionNode
- implements SelectContext
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
SelectExpressionNode
public SelectExpressionNode(ExpressionNode exp,
SelectConditionNode cond)
toString
public java.lang.String toString()
- Overrides:
toString in class java.lang.Object
getTuple
public Tuple getTuple()
- Specified by:
getTuple in interface SelectContext
setTuple
public void setTuple(Tuple t)
- Specified by:
setTuple in interface SelectContext
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