Interface SqlVisitor<R>

Type Parameters:
R - Return type
All Known Implementing Classes:
SqlBasicVisitor, SqlScopedShuttle, SqlShuttle, SqlToRelConverter.Blackboard, SqlToRelConverter.SqlIdentifierFinder, SqlValidatorUtil.DeepCopier, Util.OverFinder

public interface SqlVisitor<R>
Visitor class, follows the visitor pattern.

The type parameter R is the return type of each visit() method. If the methods do not need to return a value, use Void.

See Also: