ThreadTxn (Apache Jena ARQ)

```
public class ThreadTxn
extends Object
```
An action that will happen on a different thread later when ThreadAction.run() is called. A thread is created and the transaction started during a call to the creation operations threadTxnRead(org.apache.jena.sparql.core.Transactional, java.lang.Runnable) or threadTxnWrite(org.apache.jena.sparql.core.Transactional, java.lang.Runnable). The associated Runnable is called and the transaction completed when ThreadAction.run() is called. Being on a thread, the state of the world the forked transaction sees is outside the creating thread which may itself be in a transaction. Warning: creating a write transaction inside a write transaction will cause deadlock.

Constructors
Constructor and Description
`ThreadTxn()`

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static ThreadAction`	`threadTxnRead(Transactional trans, Runnable action)` Create a thread-backed delayed READ transaction action.
`static ThreadAction`	`threadTxnWrite(Transactional trans, Runnable action)` Create a thread-backed delayed WRITE action.
`static ThreadAction`	`threadTxnWriteAbort(Transactional trans, Runnable action)` Create a thread-backed delayed WRITE-abort action (mainly for testing).

public static ThreadAction threadTxnRead(Transactional trans,
                                         Runnable action)

Create a thread-backed delayed READ transaction action. Call ThreadAction.run() to perform the read transaction.

public static ThreadAction threadTxnWriteAbort(Transactional trans,
                                               Runnable action)

Create a thread-backed delayed WRITE-abort action (mainly for testing).

Class ThreadTxn