We are using : *orientdb-community-1.7rc2*
We are undergrad students working on REST implementation of OrientDB
We are facing a very strange behaviour. Let me explain what we are trying
to do.
We want to create an Edge between 2 Vertex and we want to do this for
batches. And perform batch commits.
We are first retrieving 2 Vertex. Then we create an Edge between these 2
Vertices.
Then we are setting a property for this newly created Edge.
The code looks as follows:
try {
if(!isTransactionAlive)
isTransactionAlive = true;
Vertex v1 = getUser(friendid1);
Vertex v2 = getUser(friendid2);
if (v1 == null || v2 == null) {
System.out.println("Error in CreateFriendship() function iterator!!!");
return ERROR;
}
Edge relation1 = GraphDBService.addEdge("class:friend", v1, v2, "friend");
Edge relation2 = GraphDBService.addEdge("class:friend", v2, v1, "friend");
relation1.setProperty("status", CONFIRMED);
relation2.setProperty("status", CONFIRMED);
count++;
if (isTransactionAlive && (count >= userCount / threadCount) ) {
GraphDBService.commit();
count = 0;
isTransactionAlive = false;
}
return SUCCESS;
}
catch (Exception e) {
GraphDBService.rollback();
System.out.println("Exception: Error in CreateFriendship() function!!!");
return ERROR;
}
In case of commit() done under if-condition, the problem arises. The
problem comes when the setProperty() is executed.
The vIn and vOut are set to NULL after this statement.
And when we check the database, all we see is nodes. No Edges. "Select *
from friend" returns 0
If the commit is allowed to happen unconditionally, i.e no batch commits,
then everything works fine.
We have spent 2 days on this small issue but are not finding any solution.
Please help.
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