Examples of org.apache.jackrabbit.spi.NodeInfo

org.apache.jackrabbit.spi.NodeInfo
The NodeInfo provides the basic information required to build nodes making up the repository hierarchy.
Note however, that the list of child nodes does not form part of a NodeInfo. It is retrieved by calling {@link RepositoryService#getChildInfos(SessionInfo,NodeId)}. In case of {@link RepositoryService#getItemInfos(SessionInfo,NodeId) batch read} thechild nodes might be part of the returned Iterator.

    @Override
    public Iterator<? extends ItemInfo> getItemInfos(SessionInfo sessionInfo, NodeId nodeId)
            throws ItemNotFoundException, RepositoryException {


        roundTripCount++;
        NodeInfo nodeInfo = itemInfoStore.getNodeInfo(nodeId);
        return chain(singleton(nodeInfo), getBatch());
    }

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    public NodeState createNodeState(NodeId nodeId, NodeEntry entry) throws ItemNotFoundException,
            RepositoryException {


        try {
            Entry<NodeInfo> cached = cache.getNodeInfo(nodeId);
            NodeInfo info;
            if (isUpToDate(cached, entry)) {
                info = cached.info;
            } else {
                // otherwise retreive item info from service and cache the whole batch
                Iterator<? extends ItemInfo> infos = service.getItemInfos(sessionInfo, nodeId);

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        try {
            // Get item info from cache
            Iterator<? extends ItemInfo> infos = null;
            Entry<NodeInfo> cached = cache.getNodeInfo(nodeId);
            NodeInfo info;
            if (cached == null) {
                // or from service if not in cache
                infos = service.getItemInfos(sessionInfo, nodeId);
                info = first(infos, null, 0);
                if (info == null) {

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            throws ItemNotFoundException, RepositoryException {
        NodeState nodeState;
        ItemInfos infos = new ItemInfos(itemInfos);
        // first entry in the iterator is the originally requested Node.
        if (infos.hasNext()) {
            NodeInfo first = (NodeInfo) infos.next();
            if (isDeep) {
                // for a deep state, the hierarchy entry does not correspond to
                // the given NodeEntry -> retrieve NodeState before executing
                // validation check.
                nodeState = createDeepNodeState(first, entry, infos);

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         * by the given <code>parentId</code> or <code>null</code> if the parent
         * has not been read yet, has already been processed (childInfo is up
         * to date) or does not provide child infos.
         */
        private Iterator getChildInfos(NodeId parentId) {
            NodeInfo nodeInfo = (NodeInfo) nodeInfos.get(parentId);
            while (nodeInfo == null && prefetch()) {
                nodeInfo = (NodeInfo) nodeInfos.get(parentId);
            }
            return nodeInfo == null? null : nodeInfo.getChildInfos();
        }

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        private boolean prefetch() {
            if (infos.hasNext()) {
                ItemInfo info = (ItemInfo) infos.next();
                prefetchQueue.add(info);
                if (info.denotesNode()) {
                    NodeInfo nodeInfo = (NodeInfo) info;
                    nodeInfos.put(nodeInfo.getId(), nodeInfo);
                }
                return true;
            } else {
                return false;
            }

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    public Iterator getItemInfos(SessionInfo sessionInfo, NodeId nodeId) throws RepositoryException {
        // TODO: implement batch read properly:
        // currently: missing 'value/values' property PropertyInfo cannot be built
        // currently: missing prop-names with child-NodeInfo
        List l = new ArrayList();
        NodeInfo nInfo = getNodeInfo(sessionInfo, nodeId);
        l.add(nInfo);
        // at least add propertyInfos for the meta-props already known from the
        // nodeInfo.
        l.addAll(buildPropertyInfos(nInfo));
        return l.iterator();

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        } catch (NameException e) {
            // ignore. should never occur
        }
        int depth = batchReadConfig.getDepth(ntName);
        if (depth == BatchReadConfig.DEPTH_DEFAULT) {
            NodeInfo info;
            try {
                info = new NodeInfoImpl(node, idFactory, sInfo.getNamePathResolver());
            } catch (NameException e) {
                throw new RepositoryException(e);
            }

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        } catch (NameException e) {
            // ignore. should never occur
        }
        int depth = batchReadConfig.getDepth(ntName);
        if (depth == BatchReadConfig.DEPTH_DEFAULT) {
            NodeInfo info;
            try {
                info = new NodeInfoImpl(node, idFactory, sInfo.getNamePathResolver());
            } catch (NameException e) {
                throw new RepositoryException(e);
            }

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        // TODO: implement batch read properly:
        // currently: missing 'value/values' property PropertyInfo cannot be built
        // currently: missing prop-names with child-NodeInfo
        if (itemId.denotesNode()) {
            List<ItemInfo> l = new ArrayList<ItemInfo>();
            NodeInfo nInfo = getNodeInfo(sessionInfo, (NodeId) itemId);
            l.add(nInfo);
            // at least add propertyInfos for the meta-props already known from the
            // nodeInfo.
            l.addAll(buildPropertyInfos(nInfo));
            return l.iterator();

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