orc.runtime.transaction
Class Transaction

java.lang.Object
  orc.runtime.transaction.Transaction

public class Transaction
extends java.lang.Object

A transaction (a dynamic instance of an atomic section). Transactions form a tree, as atomic sections may be nested. Every token has a field denoting which transaction it is currently participating in; that field may be null.

Author:

dkitchin

Field Summary

Node	next
Transaction	parent

Constructor Summary

Transaction(Token initial, Node next, GroupCell cell)

Method Summary

void	abort()
void	addCohort(Cohort c)
java.util.Set<Cohort>	getCohorts()
void	prepareCommit() A TransRegion will call this method when there are no more live tokens inside the transaction.
void	verifyCommit() A ReadyRegion will call this method when there are no more tokens waiting for cohort responses.

Methods inherited from class java.lang.Object

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

Field Detail

parent

public Transaction parent

next

public Node next

Constructor Detail

Transaction

public Transaction(Token initial,
                   Node next,
                   GroupCell cell)

Method Detail

abort

public void abort()

getCohorts

public java.util.Set<Cohort> getCohorts()

addCohort

public void addCohort(Cohort c)

prepareCommit

public void prepareCommit()

A TransRegion will call this method when there are no more live tokens inside the transaction. If the transaction has been aborted, this call is ignored.

verifyCommit

public void verifyCommit()

A ReadyRegion will call this method when there are no more tokens waiting for cohort responses. If the transaction has been aborted, this call is ignored.