Examples of InMemoryNodeModel

org.apache.commons.configuration.tree.InMemoryNodeModel

A specialized node model implementation which operates on {@link ImmutableNode} structures.

This {@code NodeModel} implementation keeps all its data as a tree of{@link ImmutableNode} objects in memory. The managed structure can bemanipulated in a thread-safe, non-blocking way. This is achieved by using atomic variables: The root of the tree is stored in an atomic reference variable. Each update operation causes a new structure to be constructed (which reuses as much from the original structure as possible). The old root node is then replaced by the new one using an atomic compare-and-set operation. If this fails, the manipulation has to be done anew on the updated structure.
@version $Id: InMemoryNodeModel.java 1614993 2014-07-31 20:11:20Z oheger $ @since 2.0
org.apache.commons.configuration2.tree.InMemoryNodeModel

A specialized node model implementation which operates on {@link ImmutableNode} structures.

This {@code NodeModel} implementation keeps all its data as a tree of{@link ImmutableNode} objects in memory. The managed structure can bemanipulated in a thread-safe, non-blocking way. This is achieved by using atomic variables: The root of the tree is stored in an atomic reference variable. Each update operation causes a new structure to be constructed (which reuses as much from the original structure as possible). The old root node is then replaced by the new one using an atomic compare-and-set operation. If this fails, the manipulation has to be done anew on the updated structure.
@version $Id: InMemoryNodeModel.java 1624601 2014-09-12 18:04:36Z oheger $ @since 2.0

Examples of org.apache.commons.configuration2.tree.InMemoryNodeModel

     * @return the node model for the clone
     */
    @Override
    protected NodeModel<ImmutableNode> cloneNodeModel()
    {
        InMemoryNodeModel parentModel =
                (InMemoryNodeModel) getParent().getModel();
        parentModel.trackNode(getRootSelector(), getParent());
        return new TrackedNodeModel(getParent(), getRootSelector(), true);
    }

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Examples of org.apache.commons.configuration2.tree.InMemoryNodeModel


    @BeforeClass
    public static void setUpBeforeClass() throws Exception
    {
        root = new ImmutableNode.Builder().name(ROOT_NAME).create();
        handler = new InMemoryNodeModel(root).getNodeHandler();
    }

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Examples of org.apache.commons.configuration2.tree.InMemoryNodeModel

        ImmutableNode c2 =
                new ImmutableNode.Builder().name("child_other").create();
        parentBuilder.addChildren(Arrays.asList(c2, c1));
        ImmutableNode parent = parentBuilder.create();
        NodeHandler<ImmutableNode> testHandler =
                new InMemoryNodeModel(parent).getNodeHandler();
        XPathExpressionEngine engine = new XPathExpressionEngine();
        assertEquals("Wrong canonical key", "parent/child[1]",
                engine.canonicalKey(c1, "parent", testHandler));
    }

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Examples of org.apache.commons.configuration2.tree.InMemoryNodeModel

        ImmutableNode c3 =
                new ImmutableNode.Builder().name("child_other").create();
        parentBuilder.addChildren(Arrays.asList(c1, c2, c3));
        ImmutableNode parent = parentBuilder.create();
        NodeHandler<ImmutableNode> testHandler =
                new InMemoryNodeModel(parent).getNodeHandler();
        XPathExpressionEngine engine = new XPathExpressionEngine();
        assertEquals("Wrong key 1", "parent/child[1]",
                engine.canonicalKey(c1, "parent", testHandler));
        assertEquals("Wrong key 2", "parent/child[2]",
                engine.canonicalKey(c2, "parent", testHandler));

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Examples of org.apache.commons.configuration2.tree.InMemoryNodeModel

    {
        ImmutableNode.Builder parentBuilder = new ImmutableNode.Builder(1);
        ImmutableNode c1 = new ImmutableNode.Builder().name("child").create();
        ImmutableNode parent = parentBuilder.addChild(c1).create();
        NodeHandler<ImmutableNode> testHandler =
                new InMemoryNodeModel(parent).getNodeHandler();
        XPathExpressionEngine engine = new XPathExpressionEngine();
        assertEquals("Wrong key", "child[1]",
                engine.canonicalKey(c1, null, testHandler));
    }

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Examples of org.apache.commons.configuration2.tree.InMemoryNodeModel

    public void testCreateContext()
    {
        ImmutableNode node =
                new ImmutableNode.Builder().name("testRoot").create();
        NodeHandler<ImmutableNode> handler =
                new InMemoryNodeModel(node).getNodeHandler();
        JXPathContext context = factory.createContext(node, handler);


        assertTrue("No lenient mode", context.isLenient());
        ConfigurationNodePointerFactory.NodeWrapper<?> wrapper =
                (ConfigurationNodePointerFactory.NodeWrapper<?>) context

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Examples of org.apache.commons.configuration2.tree.InMemoryNodeModel

        ImmutableNode.Builder ndBuilder = new ImmutableNode.Builder();
        ndBuilder.name("parent").addAttribute(ATTR_NAME, ATTR_VALUE);
        ImmutableNode nd = ndBuilder.create();
        parent =
                new ConfigurationNodePointer<ImmutableNode>(nd, Locale.ENGLISH,
                        new InMemoryNodeModel(nd).getNodeHandler());
        pointer =
                new ConfigurationAttributePointer<ImmutableNode>(parent,
                        ATTR_NAME);
    }

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Examples of org.apache.commons.configuration2.tree.InMemoryNodeModel


    @Before
    public void setUp() throws Exception
    {
        root = constructHierarchy(LEVEL_COUNT);
        handler = new InMemoryNodeModel(root).getNodeHandler();
    }

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