tppt.xopen
Interface TX

All Known Subinterfaces:

TMInterface

public interface TX

TX is the name of the service shared by the AP and the TM. The TX functions are provided by TM and are called by APs. This interface is revised from the X/Open standard.

Version:

2.0

Author:

Jodie Wu

Method Summary

int	tx_begin() AP calls this method to obtains the global transaction id.
boolean	tx_close(int tid) AP called this method to close this global transaction.
boolean	tx_commit(int tid) AP called this method to tell TM that it is ready to commit and then TM will start to perform two-phase commit protocol.

Method Detail

tx_begin

public int tx_begin()

AP calls this method to obtains the global transaction id.

Returns:

transaction id.

tx_close

public boolean tx_close(int tid)

AP called this method to close this global transaction.

Parameters:

tid - the transaction id

Returns:

true if close properly; false otherwise/

tx_commit

public boolean tx_commit(int tid)

AP called this method to tell TM that it is ready to commit and then TM will start to perform two-phase commit protocol.

Parameters:

ap - The instance of the ApplicationProgram.

Returns:

true if two-phase commit protocol execute properly; false otherwise.