Package com.yahoo.transaction

Class NestedTransaction

java.lang.Object

com.yahoo.transaction.NestedTransaction

All Implemented Interfaces:

AutoCloseable

public final class NestedTransaction
extends Object
implements AutoCloseable

A transaction which may contain a list of transactions, typically to represent a distributed transaction over multiple systems.

Author:

bratseth

Constructor Summary

Constructors

Constructor	Description
NestedTransaction()

Method Summary

Modifier and Type	Method	Description
final NestedTransaction	add(Transaction transaction, Class<? extends Transaction>... before)	Adds a transaction to this.
void	close()	Free up any temporary resources held by this
void	commit()	Perform a 2 phase commit
void	onCommitted(Runnable runnable)
String	toString()
List<Transaction>	transactions()	Returns the transactions nested in this, as they will be committed.

Methods inherited from class java.lang.Object

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

Constructor Details

NestedTransaction

public NestedTransaction()

Method Details

add

@SafeVarargs
public final NestedTransaction add(Transaction transaction,
 Class<? extends Transaction>... before)

Adds a transaction to this.

Parameters:

transaction - the transaction to add

before - transaction classes which should commit after this, if present. It is beneficial to order transaction types from the least to most reliable. If conflicting ordering constraints are given this will not be detected at add time but the transaction will fail to commit

Returns:

this for convenience

transactions

public List<Transaction> transactions()

Returns the transactions nested in this, as they will be committed.

commit

public void commit()

Perform a 2 phase commit

onCommitted

public void onCommitted(Runnable runnable)

close

public void close()

Free up any temporary resources held by this

Specified by:

close in interface AutoCloseable

toString

public String toString()

Overrides:

toString in class Object