ajax.wrappers
Interface Wrapper

All Known Implementing Classes:

FileWrapper, JdbcWrapper

public interface Wrapper

Interface used for accessing to base dirty data or transformation results and storing transformation results The result of a transformation or a set of dirty data is stored in a storage unit that can be a relational table or a file. In the first case, a JDBC wrapper is used; in the second case a File wrapper is used

Method Summary

void	close() close the storage unit
java.sql.ResultSet	executeQuery(java.lang.String sql) Executes a query: selects data
int	executeUpdate(java.lang.String sql) execute an update

Method Detail

executeQuery

public java.sql.ResultSet executeQuery(java.lang.String sql)
                                throws java.sql.SQLException

Executes a query: selects data

executeUpdate

public int executeUpdate(java.lang.String sql)
                  throws WrapperException

execute an update

close

public void close()
           throws WrapperException

close the storage unit