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https://issues.apache.org/jira/browse/JENA-1090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15369301#comment-15369301
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ASF GitHub Bot commented on JENA-1090:
--------------------------------------
Github user afs commented on the issue:
https://github.com/apache/jena/pull/153
There is markdown documentation to go with this.
> 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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