本文整理了Java中org.apache.jena.graph.Graph.getTransactionHandler()方法的一些代码示例，展示了Graph.getTransactionHandler()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Graph.getTransactionHandler()方法的具体详情如下：
包路径：org.apache.jena.graph.Graph
类名称：Graph
方法名：getTransactionHandler

Graph.getTransactionHandler介绍

[英]returns this Graph's transaction handler
[中]返回此图的事务处理程序

代码示例

代码示例来源：origin: apache/jena

@Override
public TransactionHandler getTransactionHandler()
{
  return graph.getTransactionHandler() ;
}

代码示例来源：origin: apache/jena

private static void addHandler(Map<Object, TransactionHandler> handlers, Graph graph) {
  TransactionHandler th = graph.getTransactionHandler();
  if ( ! th.transactionsSupported() )
    return;
  Object key = calcKey(graph);
  if ( th.transactionsSupported() )
    handlers.put(key, th) ;
}

代码示例来源：origin: apache/jena

/**
 * Commit the transaction on the graph if transactions are supported.
 * 
 * @param g
 */
public static void txnCommit(Graph g) {
  if (g.getTransactionHandler().transactionsSupported()) {
    g.getTransactionHandler().commit();
  }
}

代码示例来源：origin: apache/jena

/**
   * Rollback (abort) the transaction on the graph if transactions are
   * supported.
   * 
   * @param g
   */
  public static void txnRollback(Graph g) {
    if (g.getTransactionHandler().transactionsSupported()) {
      g.getTransactionHandler().abort();
    }
  }
}

代码示例来源：origin: apache/jena

@Override
public TransactionHandler getTransactionHandler() {
  return (getBaseGraph() == null) ? super.getTransactionHandler() : getBaseGraph().getTransactionHandler();
  }

代码示例来源：origin: apache/jena

public static void txnRun( Graph g, Runnable r ) {
  if (g.getTransactionHandler().transactionsSupported()) {
    g.getTransactionHandler().execute( r );
  } else {
    r.run();
  }
}

代码示例来源：origin: org.apache.jena/jena-core

public void testExecuteInTransactionCatchesThrowable() {
  Graph g = getGraph();
  TransactionHandler th = g.getTransactionHandler();
  if (th.transactionsSupported()) {
    try { th.execute( ()-> { throw new Error() ; } ); } 
    catch (JenaException x) {}
  }
}

代码示例来源：origin: apache/jena

public void testExecuteInTransactionCatchesThrowable() {
  Graph g = getGraph();
  TransactionHandler th = g.getTransactionHandler();
  if (th.transactionsSupported()) {
    try { th.execute( ()-> { throw new Error() ; } ); } 
    catch (JenaException x) {}
  }
}

代码示例来源：origin: org.apache.jena/jena-core

@ContractTest
public void testGetTransactionHandler()
{
  Graph g = producer.newInstance();
  assertNotNull("Must return a Transaction handler",
      g.getTransactionHandler());
}

代码示例来源：origin: apache/jena

@Test(expected=JenaException.class)
  public void sink_graph_txn_5() {
    DatasetGraph dsg = DatasetGraphSink.create();
    Graph g = dsg.getDefaultGraph();
    TransactionHandler h = g.getTransactionHandler();
    h.commit();
  }
}

代码示例来源：origin: apache/jena

@Test public void graph_txn_1() {
  Graph g = dsg.getDefaultGraph();
  Triple t = SSE.parseTriple("(:S :P :O)");
  
  g.getTransactionHandler().execute(()->g.add(t));
  
  g.getTransactionHandler().execute(()->
    Assert.assertTrue(g.contains(t))
    );
}

代码示例来源：origin: apache/jena

@Test(expected=JenaException.class)
public void zero_graph_txn_5() {
  DatasetGraph dsg = DatasetGraphZero.create();
  Graph g = dsg.getDefaultGraph();
  TransactionHandler h = g.getTransactionHandler();
  h.commit();
}

代码示例来源：origin: apache/jena

@Test public void graph_txn_2() {
  Graph g = dsg.getDefaultGraph();
  Triple t = SSE.parseTriple("(:S :P :O)");
  
  g.getTransactionHandler().execute(()->g.add(t));
  
  Graph g2 = dsg.getDefaultGraph();
  g2.getTransactionHandler().execute(()->
    Assert.assertTrue(g.contains(t))
    );
}

代码示例来源：origin: apache/jena

@Test(expected=JenaException.class)
public void zero_graph_txn_3() {
  DatasetGraph dsg = DatasetGraphZero.create();
  Graph g = dsg.getDefaultGraph();
  TransactionHandler h = g.getTransactionHandler();
  h.begin();
  h.begin();
}

代码示例来源：origin: apache/jena

@Test public void zero_graph_txn_2() {
  DatasetGraph dsg = DatasetGraphZero.create();
  Graph g = dsg.getDefaultGraph();
  TransactionHandler h = g.getTransactionHandler();
  h.begin();
  h.abort();
}

代码示例来源：origin: apache/jena

@Test public void graph_txn_3() {
    Node gn = SSE.parseNode(":gn");
    Graph g = dsg.getGraph(gn);
    Triple t = SSE.parseTriple("(:S :P :O)");
    Quad q = Quad.create(gn, t);
    
    g.getTransactionHandler().execute(()->g.add(t));
    
    g.getTransactionHandler().execute(()->{
      Assert.assertTrue(g.contains(t));
      dsg.contains(q);
    });
  }
}

代码示例来源：origin: apache/jena

@Test(expected=JenaException.class)
public void zero_graph_txn_4() {
  DatasetGraph dsg = DatasetGraphZero.create();
  Graph g = dsg.getDefaultGraph();
  TransactionHandler h = g.getTransactionHandler();
  h.begin();
  h.commit();
  h.abort();
}

代码示例来源：origin: apache/jena

@Test public void graphDSG_view_txn_1() {
  DatasetGraph dsg = DatasetGraphFactory.createTxnMem();
  Graph graph = dsg.getDefaultGraph();
  assertTrue(graph instanceof GraphView);
  assertTrue(graph.getTransactionHandler().transactionsSupported());
}

代码示例来源：origin: apache/jena

@Test public void graphDSG_view_txn_2() {
  DatasetGraph dsg = DatasetGraphFactory.createGeneral();
  // NOT dsg.getDefaultGraph()
  Graph graph = GraphView.createDefaultGraph(dsg);
  assertTrue( graph instanceof GraphView );
  assertFalse(graph.getTransactionHandler().transactionsSupported());
}

代码示例来源：origin: apache/jena

@Test(expected=JenaException.class)
public void sink_graph_txn_4() {
  DatasetGraph dsg = DatasetGraphSink.create();
  Graph g = dsg.getDefaultGraph();
  TransactionHandler h = g.getTransactionHandler();
  h.begin();
  h.commit();
  h.abort();
}