本文整理了Java中xdi2.core.Graph.isEmpty()方法的一些代码示例，展示了Graph.isEmpty()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.isEmpty()方法的具体详情如下：
包路径：xdi2.core.Graph
类名称：Graph
方法名：isEmpty

Graph.isEmpty介绍

[英]Checks if the graph is empty. This is equivalent to calling getRootContextNode().isEmpty();
[中]检查图形是否为空。这相当于调用getRootContextNode（）。isEmpty（）；

代码示例

代码示例来源：origin: projectdanube/xdi2

if (! callbackMessageEnvelopeGraph.isEmpty()) callbackMessageEnvelope = MessageEnvelope.fromGraph(callbackMessageEnvelopeGraph);
  if (! callbackFullMessagingResponseGraph.isEmpty()) callbackMessagingResponse = FullMessagingResponse.fromGraph(callbackFullMessagingResponseGraph);
} else {

代码示例来源：origin: projectdanube/xdi2

public void testReadJson() throws Exception {
  Graph graph3 = this.getGraphFactory().openGraph(this.getClass().getName() + "-graph-3");
  XDIReader reader = XDIReaderRegistry.forFormat("XDI/JSON", null);
  reader.read(graph3, AbstractGraphTest.class.getResourceAsStream("test.json")).close();
  testGraph(graph3);
  graph3.getRootContextNode().clear();
  assertTrue(graph3.isEmpty());
  graph3.close();
}

代码示例来源：origin: projectdanube/xdi2

if (refRepTargetContextNode != null && ! operationResultGraph.isEmpty()) {

代码示例来源：origin: projectdanube/xdi2

assertFalse(executionResult.makeLightMessagingResponse().getResultGraph().isEmpty());
assertTrue(executionResult.makeLightMessagingResponse().getResultGraph().isEmpty());

代码示例来源：origin: projectdanube/xdi2

graph18.rollbackTransaction();
assertTrue(graph18.supportsTransactions() ? ! graph18.isEmpty() : graph18.isEmpty());
graph18.commitTransaction();
assertTrue(graph18.isEmpty());

代码示例来源：origin: projectdanube/xdi2

public void testIdentity() throws Exception {
  Graph graph = MemoryGraphFactory.getInstance().openGraph();
  ContextNode contextNode = graph.getRootContextNode().setContextNode(XDIArc.create("=markus"));
  ContextNode identityContextNode = graph.getRootContextNode().setDeepContextNode(XDIAddress.create("=pseudo"));
  // test $is
  Equivalence.setIdentityContextNode(contextNode, identityContextNode);
  assertEquals(Equivalence.getIdentityContextNodes(contextNode).next(), identityContextNode);
  assertEquals(Equivalence.getIncomingIdentityContextNodes(identityContextNode).next(), contextNode);
  assertEquals(Equivalence.getIdentityRelations(contextNode).next(), contextNode.getRelation(XDIDictionaryConstants.XDI_ADD_IS));
  assertEquals(Equivalence.getIncomingIdentityRelations(identityContextNode).next(), contextNode.getRelation(XDIDictionaryConstants.XDI_ADD_IS));
  Equivalence.getIdentityContextNodes(contextNode).next().delete();
  // done
  assertTrue(contextNode.isEmpty());
  assertTrue(identityContextNode.isEmpty());
  contextNode.delete();
  assertTrue(graph.isEmpty());
  
  graph.close();
}

代码示例来源：origin: projectdanube/xdi2

assertTrue(replacementContextNode.isEmpty());
contextNode.delete();
assertTrue(graph.isEmpty());

代码示例来源：origin: projectdanube/xdi2

assertTrue(root.isRootContextNode());
assertTrue(graph13.isEmpty());
assertTrue(root.isEmpty());
assertFalse(root.containsContextNodes());

代码示例来源：origin: projectdanube/xdi2

assertTrue(graph30.isEmpty());