ca.uwaterloo.cs.ql.interp.select
Class ColumnAttributeNode
java.lang.Object
ca.uwaterloo.cs.ql.interp.SyntaxTreeNode
ca.uwaterloo.cs.ql.interp.ExpressionNode
ca.uwaterloo.cs.ql.interp.select.ColumnNode
ca.uwaterloo.cs.ql.interp.select.ColumnAttributeNode
public class ColumnAttributeNode
- extends ColumnNode
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
ColumnAttributeNode
public ColumnAttributeNode(int col,
java.lang.String attName)
propagate
public void propagate(Env env,
java.lang.Object userObj)
throws EvaluationException
- Overrides:
propagate in class ColumnNode
- Throws:
EvaluationException
evaluate
public Value evaluate(Env env)
throws EvaluationException
- Overrides:
evaluate in class ColumnNode
- Throws:
EvaluationException
toString
public java.lang.String toString()
- Overrides:
toString in class ColumnNode