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.

        sc = sail.getConnection();
        try {
            sc.begin();
            count = countStatements(sc, uriA, null, null, false);
            assertEquals(0, count);
            sc.rollback();
            sc.close();


            sc = sail.getConnection();
            sc.begin();
            sc.addStatement(uriA, uriB, uriC);

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            sc = sail.getConnection();
            sc.begin();
            count = countStatements(sc, uriA, null, null, false);
            assertEquals(1, count);
            sc.rollback();
            sc.close();


            sc = sail.getConnection();
            sc.begin();
            sc.removeStatements(uriA, null, null);

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            sc = sail.getConnection();
            sc.begin();
            count = countStatements(sc, uriA, null, null, false);
            assertEquals(0, count);
        } finally {
            sc.rollback();
            sc.close();
        }
    }


    /*

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            Resource context = statement.getContext();
            assertNull(context);
            sc.removeStatements(uriA, null, null);
            sc.commit();
        } finally {
            sc.rollback();
            sc.close();
        }
    }


    // inference ////////////////////////////////////////////////////////////////

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            long endTime = System.currentTimeMillis();


            LOGGER.info("loaded " + count + " statements in " + (endTime - startTime) + "ms");
        } finally {
            c.rollback();
            c.close();
        }
    }


    private long loadFile(final File fileOrDirectory,

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            try {
                if (sc instanceof InferencerConnection) {
                    inferencer = new ForwardChainingRDFSInferencer((NotifyingSail) sail);
                }
            } finally {
                sc.rollback();
                sc.close();
            }
        }


        addFile(SailTest.class.getResourceAsStream("graph-example-sail-test.trig"), RDFFormat.TRIG);

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


    @Test

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


    @Test

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


    @Test

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            assertEquals(0, before);
            assertEquals(1, after);
            assertEquals(foo, toSet(sc.getStatements(null, firstName, fooLabel, false)).iterator().next().getSubject());


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


    @Test

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