Examples of org.openrdf.sail.SailConnection.rollback()

org.openrdf.sail.SailConnection.rollback()
Rolls back the SailConnection, discarding any uncommitted changes that have been made in this SailConnection. @throws StoreException If the SailConnection could not be rolled back, or if the connection does not have an active connection.

            assertEquals(0, countStatements(sc, null, null, null, false));
            assertEquals(0, countEdges());
            // Namespaces vertex is still present.
            assertEquals(verticesBefore, countVertices());
        } finally {
            sc.rollback();
            sc.close();
        }
    }


    @Test

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        try {
            sc.begin();
            edgesBefore = countEdges();
            verticesBefore = countVertices();
        } finally {
            sc.rollback();
            sc.close();
        }


        // Load a file once.
        addFile(SailTest.class.getResourceAsStream("graph-example-bnodes.trig"), RDFFormat.TRIG);

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            sc.begin();
            after = countStatements(sc, uriA, uriB, uriC, false, uriA);
            assertEquals(0, before);
            assertEquals(1, after);
        } finally {
            sc.rollback();
            sc.close();
        }
    }


    @Test

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            after = countStatements(sc, null, uriA, null, false);
            assertEquals(0, before);
            assertEquals(3, after);


        } finally {
            sc.rollback();
            sc.close();
        }
    }


    @Test

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            // Get statements from more than one context.
            count = countStatements(sc, null, null, null, false, contexts);
            assertEquals(1 + countLast, count);


        } finally {
            sc.rollback();
            sc.close();
        }
    }


    @Test

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            sc.begin();
            count = countStatements(sc, uriA, null, null, false, contexts);
            assertEquals(0, count);


        } finally {
            sc.rollback();
            sc.close();
        }
    }


    @Test

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            assertEquals(3L, sc.size());
            sc.clear();
            assertEquals(0L, sc.size());
            sc.commit();
        } finally {
            sc.rollback();
            sc.close();
        }
    }


    @Test

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        try {
            assertEquals(3, countStatements(sc, class1, RDFS.SUBCLASSOF, null, false));
            assertEquals(edgesBefore + 14, countEdges());
            assertEquals(verticesBefore + 10, countVertices());
        } finally {
            sc.rollback();
            sc.close();
        }


        // Load the file again.
        // Loading the same file twice results in extra vertices and edges,

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        try {
            assertEquals(5, countStatements(sc, class1, RDFS.SUBCLASSOF, null, false));
            assertEquals(edgesBefore + 23, countEdges());
            assertEquals(verticesBefore + 12, countVertices());
        } finally {
            sc.rollback();
            sc.close();
        }
    }


    @Test

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            type = gSail.getVertex(RDF.TYPE);
            assertNotNull(type);
            assertEquals(RDF.TYPE.stringValue(), type.getProperty(GraphSail.VALUE));
        } finally {
            sc.rollback();
            sc.close();
        }
    }


    @Test

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