NestedTransaction (vespajlib 7.561.60 API)

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

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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 Detail
  - NestedTransaction
```
public NestedTransaction()
```
- Method Detail
  - 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