RowSetInternal

  • RowSetInternal is an interface implemented by RowSet objects to interact with RowSetReader and RowSetWriter.

  • It provides methods for readers and writers to access and modify the internal data of a RowSet.

  • Developers can retrieve the original data, connection, parameters, and metadata of a RowSet using this interface.

  • RowSetInternal aids in managing the state and data within a RowSet object, enabling data synchronization and manipulation.
public interface RowSetInternal

The interface that a RowSet object implements in order to present itself to a RowSetReader or RowSetWriter object. The RowSetInternal interface contains methods that let the reader or writer access and modify the internal state of the rowset.

Public Method Summary

abstract Connection
getConnection()
Retrieves the Connection object that was passed to this RowSet object.
abstract ResultSet
getOriginal()
Retrieves a ResultSet object containing the original value of this RowSet object.
abstract ResultSet
getOriginalRow()
Retrieves a ResultSet object containing the original value of the current row only.
abstract Object[]
getParams()
Retrieves the parameters that have been set for this RowSet object's command.
abstract void
setMetaData(RowSetMetaData md)
Sets the given RowSetMetaData object as the RowSetMetaData object for this RowSet object.

Public Methods

public abstract Connection getConnection ()

Retrieves the Connection object that was passed to this RowSet object.

Returns
  • the Connection object passed to the rowset or null if none was passed
Throws
SQLException if a database access error occurs

public abstract ResultSet getOriginal ()

Retrieves a ResultSet object containing the original value of this RowSet object.

The cursor is positioned before the first row in the result set. Only rows contained in the result set returned by the method getOriginal are said to have an original value.

Returns
  • the original value of the rowset
Throws
SQLException if a database access error occurs

public abstract ResultSet getOriginalRow ()

Retrieves a ResultSet object containing the original value of the current row only. If the current row has no original value, an empty result set is returned. If there is no current row, an exception is thrown.

Returns
  • the original value of the current row as a ResultSet object
Throws
SQLException if a database access error occurs or this method is called while the cursor is on the insert row, before the first row, or after the last row

public abstract Object[] getParams ()

Retrieves the parameters that have been set for this RowSet object's command.

Returns
  • an array of the current parameter values for this RowSet object's command
Throws
SQLException if a database access error occurs

public abstract void setMetaData (RowSetMetaData md)

Sets the given RowSetMetaData object as the RowSetMetaData object for this RowSet object. The RowSetReader object associated with the rowset will use RowSetMetaData methods to set the values giving information about the rowset's columns.

Parameters
md the RowSetMetaData object that will be set with information about the rowset's columns
Throws
SQLException if a database access error occurs