de.mathema.pride
Class PreparedOperation

java.lang.Object
  de.mathema.pride.PreparedOperation

All Implemented Interfaces:

TransactionListener

Direct Known Subclasses:

PreparedInsert, PreparedUpdate

public abstract class PreparedOperation
extends java.lang.Object
implements TransactionListener

Abstract base class for convenient usage of prepared statements. Support for that is pretty new in PriDE and not yet completed. Currently there are the derived classes PreparedUpdate and PreparedInsert available for the most important kinds of operations which require performance optimization.

Author:

Jan Lessner

Field Summary

protected Database	db
protected java.lang.String	operation
protected RecordDescriptor	red
static java.lang.String	REVISION_ID
protected java.sql.PreparedStatement	stmt

Constructor Summary

PreparedOperation(java.lang.String operation, RecordDescriptor red)

Method Summary

void	addBatch(java.lang.Object obj)
void	close()
void	commit(TransactionEvent e) Function to be called on successful completion of a transaction.
int	execute(java.lang.Object obj)
int[]	executeBatch()
void	rollback(TransactionEvent e) Function to be called on transaction abortion The listeners' rollback functions are called before the actual rollback is performed.
abstract void	setParameters(java.lang.Object obj)

Methods inherited from class java.lang.Object

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

Field Detail

stmt

protected java.sql.PreparedStatement stmt

red

protected RecordDescriptor red

operation

protected java.lang.String operation

db

protected Database db

REVISION_ID

public static final java.lang.String REVISION_ID

See Also:

Constant Field Values

Constructor Detail

PreparedOperation

public PreparedOperation(java.lang.String operation,
                         RecordDescriptor red)
                  throws java.sql.SQLException

Throws:

java.sql.SQLException

Method Detail

execute

public int execute(java.lang.Object obj)
            throws java.sql.SQLException

Throws:

java.sql.SQLException

addBatch

public void addBatch(java.lang.Object obj)
              throws java.sql.SQLException

Throws:

java.sql.SQLException

executeBatch

public int[] executeBatch()
                   throws java.sql.SQLException

Throws:

java.sql.SQLException

setParameters

public abstract void setParameters(java.lang.Object obj)
                            throws java.sql.SQLException

Throws:

java.sql.SQLException

close

public void close()
           throws java.sql.SQLException

Throws:

java.sql.SQLException

commit

public void commit(TransactionEvent e)
            throws java.sql.SQLException

Description copied from interface: TransactionListener

Function to be called on successful completion of a transaction. The listeners' commit functions are called before the actual commitment is performed. If any listener throws an Exception the commitment will be ommited.

Specified by:

commit in interface TransactionListener

Throws:

java.sql.SQLException

rollback

public void rollback(TransactionEvent e)
              throws java.sql.SQLException

Description copied from interface: TransactionListener

Function to be called on transaction abortion The listeners' rollback functions are called before the actual rollback is performed. If any listener throws an Exception the rollback will be ommited.

Specified by:

rollback in interface TransactionListener

Throws:

java.sql.SQLException