Examples of org.hsqldb.index.NodeAVL

org.hsqldb.index.NodeAVL
The parent for all AVL node implementations. Subclasses of Node vary in the way they hold references to other Nodes in the AVL tree, or to their Row data.
nNext links the Node objects belonging to different indexes for each table row. It is used solely by Row to locate the node belonging to a particular index.
New class derived from Hypersonic SQL code and enhanced in HSQLDB.
@author Thomas Mueller (Hypersonic SQL Group) @version 1.9.0 @since Hypersonic SQL

        // rowCount rows have been modified
        it = primaryIndex.firstRow(this);


        for (int i = 0; i < rowCount; i++) {
            Row     row      = it.getNextRow();
            NodeAVL backnode = ((RowAVL) row).getNode(0);
            int     j        = position;


            while (--j > 0) {
                backnode = backnode.nNext;
            }

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        if (indexList.length == 0) {
            return;
        }


        IndexAVL idx  = (IndexAVL) indexList[0];
        NodeAVL  root = (NodeAVL) accessorList[0];


        idx.unlinkNodes(root);
    }

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        ArrayUtil.fillArray(accessorList, null);
    }


    public CachedObject getAccessor(Index key) {


        NodeAVL node = (NodeAVL) accessorList[key.getPosition()];


        if (node == null) {
            return null;
        }


        RowAVL row = (RowAVL) get(node.getRow(this), false);


        node                            = row.getNode(key.getPosition());
        accessorList[key.getPosition()] = node;


        return node;

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    public void setAccessor(Index key, long accessor) {


        CachedObject object = get(accessor, false);


        if (object != null) {
            NodeAVL node = ((RowAVL) object).getNode(key.getPosition());


            object = node;
        }


        setAccessor(key, object);

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        int indexcount = t.getIndexCount();


        nPrimaryNode = new NodeAVLDisk(this, in, 0);


        NodeAVL n = nPrimaryNode;


        for (int i = 1; i < indexcount; i++) {
            n.nNext = new NodeAVLDisk(this, in, i);
            n       = n.nNext;
        }

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     */
    public void setPos(int pos) {


        position = pos;


        NodeAVL n = nPrimaryNode;


        while (n != null) {
            ((NodeAVLDisk) n).iData = position;
            n                       = n.nNext;
        }

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        if (in) {
            return;
        }


        NodeAVL n = nPrimaryNode;


        while (n != null) {
            n.setInMemory(in);


            n = n.nNext;
        }
    }

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        int indexcount = store.getAccessorKeys().length;


        nPrimaryNode = new NodeAVLDisk(this, 0);


        NodeAVL n = nPrimaryNode;


        for (int i = 1; i < indexcount; i++) {
            n.nNext = new NodeAVLDisk(this, i);
            n       = n.nNext;
        }

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    public void write(RowOutputInterface out, IntLookup lookup) {


        out.writeSize(storageSize);


        NodeAVL rownode = nPrimaryNode;


        while (rownode != null) {
            ((NodeAVLDisk) rownode).write(out, lookup);


            rownode = rownode.nNext;

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     */
    private void writeNodes(RowOutputInterface out) throws IOException {


        out.writeSize(storageSize);


        NodeAVL n = nPrimaryNode;


        while (n != null) {
            n.write(out);


            n = n.nNext;
        }


        hasNodesChanged = false;

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Related Classes of org.hsqldb.index.NodeAVL

org.hsqldb.persist.RowStoreAVL

org.hsqldb.persist.RowStoreAVLDisk

org.hsqldb.persist.RowStoreAVLHybrid

org.hsqldb.persist.RowStoreAVLHybridExtended

org.hsqldb.persist.RowStoreAVLMemory

org.hsqldb.RowAVL

org.hsqldb.RowAVLDisk

org.hsqldb.RowAVLDiskData

org.hsqldb.RowAVLDiskLarge

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