Class XAStatementControl

java.lang.Object

org.apache.derby.jdbc.XAStatementControl

All Implemented Interfaces:

BrokeredStatementControl

final class XAStatementControl
extends Object
implements BrokeredStatementControl

The Statement returned by an Connection returned by a XAConnection needs to float across the underlying real connections. We do this by implementing a wrapper statement.

Field Summary

Fields

Modifier and Type	Field	Description
private final BrokeredConnection	applicationConnection
(package private) BrokeredStatement	applicationStatement
private CallableStatement	realCallableStatement
private EmbedConnection	realConnection
private PreparedStatement	realPreparedStatement
private Statement	realStatement
private final EmbedXAConnection	xaConnection

Constructor Summary

Constructors

Modifier	Constructor	Description
private	XAStatementControl(EmbedXAConnection xaConnection)
(package private)	XAStatementControl(EmbedXAConnection xaConnection, CallableStatement realCallableStatement, String sql)
(package private)	XAStatementControl(EmbedXAConnection xaConnection, PreparedStatement realPreparedStatement, String sql, Object generatedKeys)
(package private)	XAStatementControl(EmbedXAConnection xaConnection, Statement realStatement)

Method Summary

Modifier and Type	Method	Description
int	checkHoldCursors(int holdability)	Can cursors be held across commits.
void	closeRealCallableStatement()	Close the realCallableStatement within this control.
void	closeRealPreparedStatement()	Close the realPreparedStatement within this control.
void	closeRealStatement()	Close the realStatement within this control.
CallableStatement	getRealCallableStatement()	Return the real JDBC CallableStatement for the brokered statement when this is controlling a CallableStatement.
PreparedStatement	getRealPreparedStatement()	Return the real JDBC PreparedStatement for the brokered statement when this is controlling a PreparedStatement.
Statement	getRealStatement()	Return the real JDBC statement for the brokered statement when this is controlling a Statement.
ResultSet	wrapResultSet(Statement s, ResultSet rs)	Don't need to wrap the ResultSet but do need to update its application Statement reference to be the one the application used to create the ResultSet.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

xaConnection

private final EmbedXAConnection xaConnection

applicationConnection

private final BrokeredConnection applicationConnection

applicationStatement

BrokeredStatement applicationStatement

realConnection

private EmbedConnection realConnection

realStatement

private Statement realStatement

realPreparedStatement

private PreparedStatement realPreparedStatement

realCallableStatement

private CallableStatement realCallableStatement

Constructor Details

XAStatementControl

private XAStatementControl(EmbedXAConnection xaConnection)

XAStatementControl

XAStatementControl(EmbedXAConnection xaConnection,
 Statement realStatement)
            throws SQLException

Throws:

SQLException

XAStatementControl

XAStatementControl(EmbedXAConnection xaConnection,
 PreparedStatement realPreparedStatement,
 String sql,
 Object generatedKeys)
            throws SQLException

Throws:

SQLException

XAStatementControl

XAStatementControl(EmbedXAConnection xaConnection,
 CallableStatement realCallableStatement,
 String sql)
            throws SQLException

Throws:

SQLException

Method Details

closeRealStatement

public void closeRealStatement()
                        throws SQLException

Close the realStatement within this control.

Specified by:

closeRealStatement in interface BrokeredStatementControl

Throws:

SQLException

closeRealCallableStatement

public void closeRealCallableStatement()
                                throws SQLException

Close the realCallableStatement within this control.

Specified by:

closeRealCallableStatement in interface BrokeredStatementControl

Throws:

SQLException

closeRealPreparedStatement

public void closeRealPreparedStatement()
                                throws SQLException

Close the realPreparedStatement within this control.

Specified by:

closeRealPreparedStatement in interface BrokeredStatementControl

Throws:

SQLException

getRealStatement

public Statement getRealStatement()
                           throws SQLException

Description copied from interface: BrokeredStatementControl

Return the real JDBC statement for the brokered statement when this is controlling a Statement.

Specified by:

getRealStatement in interface BrokeredStatementControl

Throws:

SQLException

getRealPreparedStatement

public PreparedStatement getRealPreparedStatement()
                                           throws SQLException

Description copied from interface: BrokeredStatementControl

Return the real JDBC PreparedStatement for the brokered statement when this is controlling a PreparedStatement.

Specified by:

getRealPreparedStatement in interface BrokeredStatementControl

Throws:

SQLException

getRealCallableStatement

public CallableStatement getRealCallableStatement()
                                           throws SQLException

Description copied from interface: BrokeredStatementControl

Return the real JDBC CallableStatement for the brokered statement when this is controlling a CallableStatement.

Specified by:

getRealCallableStatement in interface BrokeredStatementControl

Throws:

SQLException

wrapResultSet

public ResultSet wrapResultSet(Statement s,
 ResultSet rs)

Don't need to wrap the ResultSet but do need to update its application Statement reference to be the one the application used to create the ResultSet.

Specified by:

wrapResultSet in interface BrokeredStatementControl

Parameters:

s - Statement that created the ResultSet.

checkHoldCursors

public int checkHoldCursors(int holdability)
                     throws SQLException

Can cursors be held across commits.

Specified by:

checkHoldCursors in interface BrokeredStatementControl

Throws:

SQLException