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public interface ExpressionVisitor
Visits nodes of a query expression tree.
| Method Summary | |
|---|---|
|  void | enter(Expression exp)Enter an expression. | 
|  void | enter(Value val)Enter a value. | 
|  void | exit(Expression exp)Leave an expression. | 
|  void | exit(Value val)Leave a value. | 
| Method Detail | 
|---|
void enter(Expression exp)
void exit(Expression exp)
void enter(Value val)
void exit(Value val)
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