Thank you Michael and Chris.
That works.
Intuitively it makes sense as I guess you have to keep the entire chain of
operation under one transaction.
What changed between neo4j versions or OSes for this to occur? (I have a
lot of code to check).
Regards, John.
*try ( Transaction tx = db.beginTx() ) {*
Iterator<Path> paths;
paths = findShortestPathsCypher(db, icString[i], icString[j]);
*while (paths.hasNext()){*
On Tuesday, November 24, 2015 at 7:24:54 AM UTC-8, Michael Hunger wrote:
>
> you should move this into the transaction-block:
>
> paths = findShortestPathsCypher(db, icString[i], icString[j]);
>
>
> Am 24.11.2015 um 08:32 schrieb Fry <[email protected] <javascript:>>:
>
>
> Hi All,
>
> for the code below it works on one system and not another. The differences
> are:
>
> - Working system: OS X - neo4j-community-2.2.5
> - Broken system: Ubuntu - neo4j-communty-2.3.0
>
> The code in red return returns an exception
> *"org.neo4j.grapg.db.NotInTransactionException:
> The statement has been closed."*
>
> Has any one any experience with this of can offer advice/clues?
>
> Many thanks, John.
>
>
>
> Iterator<Path> paths;
>
> paths = findShortestPathsCypher(db, icString[i], icString[j]);
>
>
> *try ( Transaction tx = db.beginTx() ) {*
>
> * while (paths.hasNext()){*
>
> Path path = (Path) paths.next();
>
> Iterable<Node> nodes = path.nodes();
>
> java.util.Iterator<Node> nodeIterator = nodes.iterator();
>
> ShortestPath.clear();
>
> System.out.println(" ");
>
> boolean first = true;
>
> while (nodeIterator.hasNext()){
>
> Node n = nodeIterator.next();
>
> String nodeName = (String) n.getProperty("title");
>
> ShortestPath.add(nodeName);
>
> if (first) {
>
> System.out.print("Path: " + nodeName);
>
> first = false;
>
> } else
>
> System.out.print(" ->- " + nodeName);
>
> }
>
> AllShortestPaths.add((ArrayList<String>)ShortestPath.clone());
>
> }
>
> } catch (Exception e) {
>
> System.out.println("Exception on path expansion: " + e.toString());
>
> e.printStackTrace();
>
> }
>
>
>
>
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