Examples of org.hsqldb_voltpatches.index.NodeAVL

org.hsqldb_voltpatches.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 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;
        }


        RowAction action = rowAction;

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        int indexcount = tTable.getIndexCount();


        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).writeTranslate(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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        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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        int index = tTable.getIndexCount();


        nPrimaryNode = new NodeAVLMemoryPointer(this);


        NodeAVL n = nPrimaryNode;


        for (int i = 1; i < index; i++) {
            n.nNext = new NodeAVLMemoryPointer(this);
            n       = n.nNext;
        }

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        }
    }


    public NodeAVL insertNode(int index) {


        NodeAVL backnode = getNode(index - 1);
        NodeAVL newnode  = new NodeAVLMemoryPointer(this);


        newnode.nNext  = backnode.nNext;
        backnode.nNext = newnode;


        return newnode;

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Related Classes of org.hsqldb_voltpatches.index.NodeAVL

org.hsqldb_voltpatches.persist.RowStoreAVLDisk

org.hsqldb_voltpatches.persist.RowStoreAVLMemory

org.hsqldb_voltpatches.RowAVL

org.hsqldb_voltpatches.RowAVLDisk

org.hsqldb_voltpatches.RowAVLDiskData

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