Ken Hu created TINKERPOP-3141:
---------------------------------

             Summary: TinkerTransactionGraph doesn't allow deleting and adding 
element back in same transaction
                 Key: TINKERPOP-3141
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-3141
             Project: TinkerPop
          Issue Type: Bug
          Components: tinkergraph
    Affects Versions: 3.7.3
            Reporter: Ken Hu


An element with the same Id cannot be dropped and then added back in the same 
transaction.

 
{code:java}
@Test
public void shouldAllowDropThenInsert() throws InterruptedException {
    final TinkerTransactionGraph g = TinkerTransactionGraph.open();
    final GraphTraversalSource gtx = g.tx().begin();

    gtx.addV().property(T.id, 1).next();
    gtx.tx().commit();

    GraphTraversalSource gtx2 = g.tx().begin();

    gtx2.V().drop().iterate();
    gtx.addV().property(T.id, 1).next();
    gtx2.tx().commit();

    assertEquals(1, g.getVertices().size());
} {code}
throws a TransactionException.

This occurs when the transaction attempts to get updated, the old 
vertex"isDeletedInTx" but has a different txNumber than the newly created 
vertex.

[https://github.com/apache/tinkerpop/blob/3.7.3/tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerElementContainer.java#L185]
 should probably allow this case through.

 



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