Examples with DatasetGraphTxn org.apache.jena.tdb.transaction.DatasetGraphTxn used on opensource projects

Example 31 with DatasetGraphTxn

use of org.apache.jena.tdb.transaction.DatasetGraphTxn in project jena by apache.

the class AbstractTestTransSeq method trans_02.

@Test
public void trans_02() {
    StoreConnection sConn = getStoreConnection();
    DatasetGraphTxn dsg = sConn.begin(ReadWrite.WRITE);
    try {
        dsg.add(q);
        assertTrue(dsg.contains(q));
        dsg.commit();
    } finally {
        dsg.end();
    }
}

Example 32 with DatasetGraphTxn

use of org.apache.jena.tdb.transaction.DatasetGraphTxn in project jena by apache.

the class AbstractTestTransSeq method trans_06.

@Test
public void trans_06() {
    // READ(start)-READ(finish)-WRITE(start)-WRITE(commit)-check
    StoreConnection sConn = getStoreConnection();
    DatasetGraphTxn dsgR2 = sConn.begin(ReadWrite.READ);
    assertFalse(dsgR2.contains(q1));
    assertFalse(dsgR2.contains(q2));
    dsgR2.end();
    DatasetGraphTxn dsgW1 = sConn.begin(ReadWrite.WRITE);
    dsgW1.add(q1);
    dsgW1.add(q2);
    dsgW1.commit();
    dsgW1.end();
    sConn.forceRecoverFromJournal();
    DatasetGraph dsg = sConn.getBaseDataset();
    assertTrue(dsg.contains(q1));
    assertTrue(dsg.contains(q2));
}

Example 33 with DatasetGraphTxn

use of org.apache.jena.tdb.transaction.DatasetGraphTxn in project jena by apache.

the class AbstractTestTransSeq method trans_readBlock_04.

@Test
public void trans_readBlock_04() {
    // READ(block)-WRITE(abort)-WRITE(commit)-READ(close)-check
    StoreConnection sConn = getStoreConnection();
    DatasetGraphTxn dsgR1 = sConn.begin(ReadWrite.READ);
    DatasetGraphTxn dsgW2 = sConn.begin(ReadWrite.WRITE);
    dsgW2.add(q2);
    // ABORT
    dsgW2.abort();
    dsgW2.end();
    assertFalse(dsgR1.contains(q2));
    DatasetGraphTxn dsgW3 = sConn.begin(ReadWrite.WRITE);
    dsgW3.add(q3);
    // Can see W1
    assertFalse(dsgW3.contains(q2));
    dsgW3.commit();
    dsgW3.end();
    assertFalse(dsgR1.contains(q3));
    dsgR1.end();
    sConn.flush();
    DatasetGraph dsg = sConn.getBaseDataset();
    assertFalse(dsg.contains(q2));
    assertTrue(dsg.contains(q3));
}