org.apache.jackrabbit.oak.api.Tree.setOrderableChildren()方法的使用及代码示例

x33g5p2x  于2022-01-30 转载在 其他  
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本文整理了Java中org.apache.jackrabbit.oak.api.Tree.setOrderableChildren()方法的一些代码示例，展示了Tree.setOrderableChildren()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。Tree.setOrderableChildren()方法的具体详情如下：
包路径：org.apache.jackrabbit.oak.api.Tree
类名称：Tree
方法名：setOrderableChildren

Tree.setOrderableChildren介绍

[英]Changes the nature of this tree such that the order of the children is kept stable. The expected behavior is as follows:

  1. Calling setOrderableChildren(true) on a tree the first time will stabilize the order of existing children. Any subsequent #addChild(String) call is guaranteed to insert the new tree and the end of the child list.
  2. Calling setOrderableChildren(true) on a tree that already has its children ordered has no effect.
  3. Calling setOrderableChildren(false) on a tree that doesn't have ordered children has not effect
  4. Calling setOrderableChildren(false) on a tree with ordered children will remove the necessity to keep the child list stable. The order of children upon #getChildren() is subsequently undefined.

Calling #orderBefore(String) on a tree, implicitly enables orderable children on the parent tree.
[中]改变了这棵树的性质，使孩子们的秩序保持稳定。预期的行为如下所示：
1.第一次在树上调用setOrderableChildren（true）将稳定现有子级的顺序。任何后续的#addChild（String）调用都保证插入新树和子列表的末尾。
1.在已对其子级进行排序的树上调用setOrderableChildren（true）无效。
1.在没有已排序子级的树上调用setOrderableChildren（false）无效
1.在具有有序子级的树上调用setOrderableChildren（false）将消除保持子级列表稳定的必要性。#getChildren（）上的子项顺序随后未定义。
在树上调用#orderBefore（String）会隐式启用父树上的可排序子树。

代码示例

代码示例来源：origin: apache/jackrabbit-oak

/**
 * Enables or disabled orderable children on the underlying tree.
 *
 * @param enable whether to enable or disable orderable children.
 */
public void setOrderableChildren(boolean enable)
    throws InvalidItemStateException {
  getTree().setOrderableChildren(enable);
}

代码示例来源：origin: org.apache.sling/org.apache.sling.testing.sling-mock-oak

/**
 * Enables or disabled orderable children on the underlying tree.
 *
 * @param enable whether to enable or disable orderable children.
 */
public void setOrderableChildren(boolean enable)
    throws InvalidItemStateException {
  getTree().setOrderableChildren(enable);
}

代码示例来源：origin: org.apache.jackrabbit/oak-jcr

/**
 * Enables or disabled orderable children on the underlying tree.
 *
 * @param enable whether to enable or disable orderable children.
 */
public void setOrderableChildren(boolean enable)
    throws InvalidItemStateException {
  getTree().setOrderableChildren(enable);
}

代码示例来源：origin: apache/jackrabbit-oak

private static Tree getOrCreateChild(Tree tree, String name){
  if (tree.hasChild(name)){
    return tree.getChild(name);
  }
  Tree child = tree.addChild(name);
  child.setOrderableChildren(true);
  child.setProperty(JCR_PRIMARYTYPE, NT_UNSTRUCTURED, NAME);
  return child;
}

代码示例来源：origin: apache/jackrabbit-oak

public static Tree newRulePropTree(Tree indexDefn, String typeName) {
  Tree rules = indexDefn.addChild(FulltextIndexConstants.INDEX_RULES);
  rules.setOrderableChildren(true);
  Tree rule = rules.addChild(typeName);
  Tree props = rule.addChild(FulltextIndexConstants.PROP_NODE);
  props.setOrderableChildren(true);
  return props;
}

代码示例来源：origin: org.apache.jackrabbit/oak-lucene

private static Tree getOrCreateChild(Tree tree, String name){
  if (tree.hasChild(name)){
    return tree.getChild(name);
  }
  Tree child = tree.addChild(name);
  child.setOrderableChildren(true);
  child.setProperty(JCR_PRIMARYTYPE, NT_UNSTRUCTURED, NAME);
  return child;
}

代码示例来源：origin: apache/jackrabbit-oak

private static Tree getOrCreateChild(Tree tree, String name){
  if (tree.hasChild(name)){
    return tree.getChild(name);
  }
  Tree child = tree.addChild(name);
  child.setOrderableChildren(true);
  child.setProperty(JCR_PRIMARYTYPE, NT_UNSTRUCTURED, NAME);
  return child;
}

代码示例来源：origin: apache/jackrabbit-oak

public static Tree newRulePropTree(Tree indexDefn, String typeName){
  Tree rules = indexDefn.addChild(FulltextIndexConstants.INDEX_RULES);
  rules.setOrderableChildren(true);
  Tree rule = rules.addChild(typeName);
  Tree props = rule.addChild(FulltextIndexConstants.PROP_NODE);
  props.setOrderableChildren(true);
  return props;
}

代码示例来源：origin: apache/jackrabbit-oak

private Tree addUnstructuredChild(Tree tree, String name){
    Tree child = tree.addChild(name);
    child.setOrderableChildren(true);
    child.setProperty("jcr:primaryType", "nt:unstructured", Type.NAME);
    return child;
  }
}

代码示例来源：origin: apache/jackrabbit-oak

@Test
public void testSetOrderableChildNodesOnHiddenTree() {
  try {
    Tree hidden = parent.getChild(HIDDEN_NAME);
    hidden.setOrderableChildren(true);
    fail("IllegalStateException expected");
  } catch (IllegalStateException e) {
    // success
  }
  try {
    Tree hidden = parent.getChild(HIDDEN_NAME);
    hidden.setOrderableChildren(false);
    fail("IllegalStateException expected");
  } catch (IllegalStateException e) {
    // success
  }
}

代码示例来源：origin: apache/jackrabbit-oak

public static void copyToTree(NodeState state, Tree tree){
  tree.setOrderableChildren(state.hasProperty(OAK_CHILD_ORDER));
  copyProps(state, tree);
  Tree src = TreeFactory.createReadOnlyTree(state);
  for (Tree srcChild : src.getChildren()){
    String childName = srcChild.getName();
    Tree child = tree.addChild(childName);
    copyToTree(state.getChildNode(childName), child);
  }
}

代码示例来源：origin: apache/jackrabbit-oak

@Override
@Before
public void before() throws Exception {
  super.before();
  Tree a = root.getTree("/a");
  a.setOrderableChildren(true);
  root.commit();
}

代码示例来源：origin: apache/jackrabbit-oak

@Test
public void testSetOrderableChildrenSetsProperty() throws Exception {
  Tree tree = root.getTree("/").addChild("test");
  tree.setOrderableChildren(true);
  assertTrue(((MutableTree) tree).getNodeState().hasProperty(TreeConstants.OAK_CHILD_ORDER));
  tree.setOrderableChildren(false);
  assertFalse(((MutableTree) tree).getNodeState().hasProperty(TreeConstants.OAK_CHILD_ORDER));
  tree.setOrderableChildren(true);
  root.commit();
  assertTrue(((MutableTree) tree).getNodeState().hasProperty(TreeConstants.OAK_CHILD_ORDER));
  tree.setOrderableChildren(false);
  root.commit();
  assertFalse(((MutableTree) tree).getNodeState().hasProperty(TreeConstants.OAK_CHILD_ORDER));
}

代码示例来源：origin: apache/jackrabbit-oak

@Override
  public void initialize(final NodeBuilder builder) {
    if (!isAlreadyThere(builder)) {
      Tree t = TreeFactory.createTree(builder.child(INDEX_DEFINITIONS_NAME));
      t = t.addChild(name);
      t.setProperty("jcr:primaryType", INDEX_DEFINITIONS_NODE_TYPE, NAME);
      t.setProperty(COMPAT_MODE, 2L, LONG);
      t.setProperty(TYPE_PROPERTY_NAME, TYPE_LUCENE, STRING);
      t.setProperty(ASYNC_PROPERTY_NAME, "async", STRING);
      t.setProperty(REINDEX_PROPERTY_NAME, true);
      
      t = t.addChild(INDEX_RULES);
      t.setOrderableChildren(true);
      t.setProperty("jcr:primaryType", "nt:unstructured", NAME);
      
      t = t.addChild("nt:base");
      
      Tree propnode = t.addChild(PROP_NODE);
      propnode.setOrderableChildren(true);
      propnode.setProperty("jcr:primaryType", "nt:unstructured", NAME);
      
      for (String p : properties) {
        Tree t1 = propnode.addChild(PathUtils.getName(p));
        t1.setProperty(PROP_PROPERTY_INDEX, true, BOOLEAN);
        t1.setProperty(PROP_NAME, p);
      }
    }
  }
}

代码示例来源：origin: apache/jackrabbit-oak

/**
 * @see <a href="https://issues.apache.org/jira/browse/OAK-842">OAK-842</a>
 */
@Test
public void testOrderableChildren() throws Exception {
  Tree a = root.getTree("/a");
  a.setOrderableChildren(true);
  testRoot.refresh();
  for (Tree t : testRoot.getTree("/a").getChildren()) {
    if (!"b".equals(t.getName())) {
      fail("Child " + t.getName() + " should not be accessible.");
    }
  }
}

代码示例来源：origin: apache/jackrabbit-oak

@Test
public void testSetOrderableChildren() throws Exception {
  Tree tree = root.getTree("/").addChild("test2");
  tree.setOrderableChildren(true);
  String[] childNames = new String[]{"a", "b", "c", "d"};
  for (String name : childNames) {
    tree.addChild(name);
  }
  int index = 0;
  for (Tree child : tree.getChildren()) {
    assertEquals(childNames[index++], child.getName());
  }
}

代码示例来源：origin: apache/jackrabbit-oak

@Test
  public void testChildOrderWithoutPropertyReadAccess() throws Exception {
    root.getTree("/a").setOrderableChildren(true);        
    root.getTree("/a/bb").orderBefore("b");
    root.commit();
    setupPermission("/", testPrincipal, true, PrivilegeConstants.REP_READ_NODES);

    Root testRoot = getTestRoot();
    Tree aTree = testRoot.getTree("/a");
    // verify that properties cannot be read:
    assertFalse(aTree.hasProperty(JcrConstants.JCR_PRIMARYTYPE));

    List<String> expected = ImmutableList.of("/a/bb", "/a/b");
    Iterable<String> childPaths = Iterables.transform(aTree.getChildren(), new Function<Tree, String>() {
      @Nullable
      @Override
      public String apply(Tree input) {
        return input.getPath();
      }
    });
    assertTrue(childPaths.toString(), Iterables.elementsEqual(expected, childPaths));
  }
}

代码示例来源：origin: apache/jackrabbit-oak

@Test
public void copyOrdered() throws Exception{
  NodeBuilder testBuilder = EMPTY_NODE.builder();
  Tree srcTree = TreeFactory.createTree(testBuilder);
  srcTree.setOrderableChildren(true);
  srcTree.setProperty("foo", "x");
  srcTree.addChild("a").setOrderableChildren(true);
  srcTree.addChild("a").setProperty("foo", "y");
  srcTree.addChild("b").setOrderableChildren(true);
  srcTree.addChild("b").setProperty("foo", "z");
  Tree tree = TreeFactory.createTree(EMPTY_NODE.builder());
  NodeStateCopyUtils.copyToTree(testBuilder.getNodeState(), tree);
  assertEquals("x", tree.getProperty("foo").getValue(Type.STRING));
  assertEquals(2, tree.getChildrenCount(100));
  assertEquals("y", tree.getChild("a").getProperty("foo").getValue(Type.STRING));
  assertEquals("z", tree.getChild("b").getProperty("foo").getValue(Type.STRING));
  //Assert the order
  Iterator<Tree> children = tree.getChildren().iterator();
  assertEquals("a", children.next().getName());
  assertEquals("b", children.next().getName());
}

代码示例来源：origin: apache/jackrabbit-oak

@Test
public void newIndexAndOrderableChildren() throws Exception{
  String json = "{\"/oak:index/barIndex\": {\n" +
      "    \"compatVersion\": 2,\n" +
      "    \"type\": \"lucene\",\n" +
      "    \"barIndexProp\": \"barbar\",\n" +
      "    \"async\": \"async\",\n" +
      "    \"jcr:primaryType\": \"oak:QueryIndexDefinition\"\n" +
      "  }}";
  NodeBuilder builder = store.getRoot().builder();
  Tree root = TreeFactory.createTree(builder);
  Tree oakIndex = root.addChild("oak:index");
  oakIndex.setOrderableChildren(true);
  Tree fooIndex = oakIndex.addChild("fooIndex");
  store.merge(builder, EmptyHook.INSTANCE, CommitInfo.EMPTY);
  IndexDefinitionUpdater updater = new IndexDefinitionUpdater(json);
  builder = store.getRoot().builder();
  NodeBuilder idxBuilder = updater.apply(builder, "/oak:index/barIndex");
  PropertyState childOrder = builder.getChildNode("oak:index").getProperty(":childOrder");
  List<String> names = ImmutableList.copyOf(childOrder.getValue(Type.NAMES));
  assertEquals(asList("fooIndex", "barIndex"), names);
}

代码示例来源：origin: apache/jackrabbit-oak

@Before
public void setUp() throws Exception {
  Tree tree = root.getTree("/");
  NodeUtil node = new NodeUtil(tree);
  node.addChild("x", JcrConstants.NT_UNSTRUCTURED).addChild("y", JcrConstants.NT_UNSTRUCTURED).addChild("z", JcrConstants.NT_UNSTRUCTURED);
  Tree orderable = node.addChild("orderable", JcrConstants.NT_UNSTRUCTURED).getTree();
  orderable.setOrderableChildren(true);
  root.commit();
  immutable = new ImmutableTree(((AbstractTree) root.getTree("/")).getNodeState());
}

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