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

        int         position = oldIndex.getPosition() - 1;


        while (it.hasNext()) {
            Row     row      = it.getNextRow();
            int     i        = position - 1;
            NodeAVL backnode = ((RowAVL) row).getNode(0);


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

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        // 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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        accessorList[index.getPosition()] = accessor;
    }


    public CachedObject getAccessor(Index key) {


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


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


        if (!node.isInMemory()) {
            RowAVL row = (RowAVL) get(node.getPos(), false);


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

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    public void setAccessor(Index key, int 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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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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