Andy Seaborne created JENA-1090:
-----------------------------------
Summary: Add transaction handling convenience code
Key: JENA-1090
URL: https://issues.apache.org/jira/browse/JENA-1090
Project: Apache Jena
Issue Type: Improvement
Components: ARQ
Reporter: Andy Seaborne
The code
[Txn|https://github.com/afs/jena-rdfconnection/blob/master/src/main/java/rdfconnection/Txn.java]
provides a convenient way to write common patterns of transaction usage
including
{noformat}
Txn.executeWrite(conn, () ->{
... write transaction code ...
}) ;
{noformat}
which provides the pattern:
{noformat}
txn.begin(ReadWrite.WRITE) ;
try {
... write transaction code ...
txn.commit() ;
}
finally { txn.end() ; }
{noformat}
{{Txn}} also checks for being in a transaction already.
There are forms to return a value from the code inside the transaction block as
well.
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