XAStatementControl (Apache Derby V10.14 Internals)

java.lang.Object
- org.apache.derby.jdbc.XAStatementControl

All Implemented Interfaces:

BrokeredStatementControl
```
final class XAStatementControl
extends java.lang.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 BrokeredConnection`	`applicationConnection`
`(package private) BrokeredStatement`	`applicationStatement`
`private java.sql.CallableStatement`	`realCallableStatement`
`private EmbedConnection`	`realConnection`
`private java.sql.PreparedStatement`	`realPreparedStatement`
`private java.sql.Statement`	`realStatement`
`private EmbedXAConnection`	`xaConnection`

Constructor Summary

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

Method Summary

All Methods Instance Methods Concrete Methods
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.
`java.sql.CallableStatement`	`getRealCallableStatement()`	Return the real JDBC CallableStatement for the brokered statement when this is controlling a CallableStatement.
`java.sql.PreparedStatement`	`getRealPreparedStatement()`	Return the real JDBC PreparedStatement for the brokered statement when this is controlling a PreparedStatement.
`java.sql.Statement`	`getRealStatement()`	Return the real JDBC statement for the brokered statement when this is controlling a Statement.
`java.sql.ResultSet`	`wrapResultSet(java.sql.Statement s, java.sql.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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - xaConnection
```
private final EmbedXAConnection xaConnection
```
  - applicationConnection
```
private final BrokeredConnection applicationConnection
```
  - applicationStatement
```
BrokeredStatement applicationStatement
```
  - realConnection
```
private EmbedConnection realConnection
```
  - realStatement
```
private java.sql.Statement realStatement
```
  - realPreparedStatement
```
private java.sql.PreparedStatement realPreparedStatement
```
  - realCallableStatement
```
private java.sql.CallableStatement realCallableStatement
```
- Constructor Detail
  - XAStatementControl
```
private XAStatementControl(EmbedXAConnection xaConnection)
```
  - XAStatementControl
```
XAStatementControl(EmbedXAConnection xaConnection,
                   java.sql.Statement realStatement)
            throws java.sql.SQLException
```
    Throws:
    
    java.sql.SQLException
  - XAStatementControl
```
XAStatementControl(EmbedXAConnection xaConnection,
                   java.sql.PreparedStatement realPreparedStatement,
                   java.lang.String sql,
                   java.lang.Object generatedKeys)
            throws java.sql.SQLException
```
    Throws:
    
    java.sql.SQLException
  - XAStatementControl
```
XAStatementControl(EmbedXAConnection xaConnection,
                   java.sql.CallableStatement realCallableStatement,
                   java.lang.String sql)
            throws java.sql.SQLException
```
    Throws:
    
    java.sql.SQLException
- Method Detail
  - closeRealStatement
```
public void closeRealStatement()
                        throws java.sql.SQLException
```
    Close the realStatement within this control.
    
    Specified by:
    
    closeRealStatement in interface BrokeredStatementControl
    
    Throws:
    
    java.sql.SQLException
  - closeRealCallableStatement
```
public void closeRealCallableStatement()
                                throws java.sql.SQLException
```
    Close the realCallableStatement within this control.
    
    Specified by:
    
    closeRealCallableStatement in interface BrokeredStatementControl
    
    Throws:
    
    java.sql.SQLException
  - closeRealPreparedStatement
```
public void closeRealPreparedStatement()
                                throws java.sql.SQLException
```
    Close the realPreparedStatement within this control.
    
    Specified by:
    
    closeRealPreparedStatement in interface BrokeredStatementControl
    
    Throws:
    
    java.sql.SQLException
  - getRealStatement
```
public java.sql.Statement getRealStatement()
                                    throws java.sql.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:
    
    java.sql.SQLException
  - getRealPreparedStatement
```
public java.sql.PreparedStatement getRealPreparedStatement()
                                                    throws java.sql.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:
    
    java.sql.SQLException
  - getRealCallableStatement
```
public java.sql.CallableStatement getRealCallableStatement()
                                                    throws java.sql.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:
    
    java.sql.SQLException
  - wrapResultSet
```
public java.sql.ResultSet wrapResultSet(java.sql.Statement s,
                                        java.sql.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 java.sql.SQLException
```
    Can cursors be held across commits.
    
    Specified by:
    
    checkHoldCursors in interface BrokeredStatementControl
    
    Throws:
    
    java.sql.SQLException

Class XAStatementControl

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

xaConnection

applicationConnection

applicationStatement

realConnection

realStatement

realPreparedStatement

realCallableStatement

Constructor Detail

XAStatementControl

XAStatementControl

XAStatementControl

XAStatementControl

Method Detail

closeRealStatement

closeRealCallableStatement

closeRealPreparedStatement

getRealStatement

getRealPreparedStatement

getRealCallableStatement

wrapResultSet

checkHoldCursors