Java RowInputInterface类代码示例

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
static final Node newNode(Row r, RowInputInterface in, int id,
                          Table t) throws IOException, HsqlException {

    switch (t.getIndexType()) {

        case Index.MEMORY_INDEX :
            return new MemoryNode(r);

        case Index.POINTER_INDEX :
            return new PointerNode((CachedRow) r, id);

        case Index.DISK_INDEX :
        default :
            return new DiskNode((CachedRow) r, in, id);
    }
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
void writeTransactionRows() {

        for (int i = 0, size = transactionRowLookup.size(); i < size; i++) {
            if (transactionRowLookup.getValue(i) != 0) {
                continue;
            }

            int key = transactionRowLookup.getKey(i);

            try {
                transactionRowLookup.setValue(i, (int) (fileOffset / scale));

                RowInputInterface rowIn = cache.readObject(key);

                fileStreamOut.write(rowIn.getBuffer(), 0, rowIn.getSize());

                fileOffset += rowIn.getSize();
            } catch (IOException e) {}
        }
    }
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
public NodeAVLDisk(RowAVLDisk r, RowInputInterface in,
                   int id) throws IOException {

    row      = r;
    iId      = id;
    iBalance = in.readInt();
    iLeft    = in.readInt();
    iRight   = in.readInt();
    iParent  = in.readInt();

    if (iLeft <= 0) {
        iLeft = NO_POS;
    }

    if (iRight <= 0) {
        iRight = NO_POS;
    }

    if (iParent <= 0) {
        iParent = NO_POS;
    }
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
/**
 *  Constructor when read from the disk into the Cache.
 *
 * @param t table
 * @param in data source
 * @throws IOException
 */
public RowDiskDataChange(Session session, TableBase t,
                         RowInputInterface in) throws IOException {

    super(t, in);

    targetTable = t.database.schemaManager.findTable(session,
            (String) rowData[COL_POS_TABLE_NAME],
            (String) rowData[COL_POS_SCHEMA_NAME], null);

    if ((Boolean) rowData[COL_POS_IS_UPDATE]) {
        updateData = in.readData(targetTable.colTypes);

        RowInputBinary bin = (RowInputBinary) in;

        if (bin.readNull()) {
            updateColMap = null;
        } else {
            updateColMap = bin.readIntArray();
        }
    } else {
        updateData   = null;
        updateColMap = null;
    }
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
public NodeAVLDisk(RowAVLDisk r, RowInputInterface in,
                   int id) throws IOException {

    super(r);

    iId      = id;
    iBalance = in.readInt();
    iLeft    = in.readInt();
    iRight   = in.readInt();
    iParent  = in.readInt();

    if (iLeft <= 0) {
        iLeft = NO_POS;
    }

    if (iRight <= 0) {
        iRight = NO_POS;
    }

    if (iParent <= 0) {
        iParent = NO_POS;
    }
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
/**
 *  Constructor when read from the disk into the Cache.
 *
 * @param t table
 * @param in data source
 * @throws IOException
 */
public RowDiskDataChange(Session session, TableBase t,
                         RowInputInterface in) throws IOException {

    super(t, in);

    targetTable = t.database.schemaManager.getTable(session,
            (String) rowData[COL_POS_TABLE_NAME],
            (String) rowData[COL_POS_SCHEMA_NAME]);

    if ((Boolean) rowData[COL_POS_IS_UPDATE]) {
        updateData = in.readData(targetTable.colTypes);

        RowInputBinary bin = (RowInputBinary) in;

        if (bin.readNull()) {
            updateColMap = null;
        } else {
            updateColMap = bin.readIntArray();
        }
    } else {
        updateData   = null;
        updateColMap = null;
    }
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
/**
 *  Constructor when read from the disk into the Cache.
 *
 * @param t table
 * @param in data source
 * @throws IOException
 */
public RowAVLDisk(TableBase t,
                  RowInputInterface in) throws IOException {

    tTable      = t;
    position    = in.getPos();
    storageSize = in.getSize();

    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;
    }

    rowData = in.readData(tTable.getColumnTypes());
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
public NodeAVLDisk(RowAVLDisk r, RowInputInterface in,
                   int id) throws IOException {

    row      = r;
    iId      = id;
    iData    = r.getPos();
    iBalance = in.readInt();
    iLeft    = in.readInt();

    if (iLeft <= 0) {
        iLeft = NO_POS;
    }

    iRight = in.readInt();

    if (iRight <= 0) {
        iRight = NO_POS;
    }

    iParent = in.readInt();

    if (iParent <= 0) {
        iParent = NO_POS;
    }
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
public void read(RowInputInterface in,
                 ResultMetaData meta) throws IOException {

    id            = in.readLong();
    size          = in.readInt();
    currentOffset = in.readInt();
    baseBlockSize = in.readInt();

    if (table.length < baseBlockSize) {
        table = new Object[baseBlockSize][];
    }

    for (int i = 0; i < baseBlockSize; i++) {
        table[i] = in.readData(meta.columnTypes);
    }
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
boolean readRow(RowInputInterface rowin, int pos) throws IOException {

        try {
            int length = dataStreamIn.readInt();
            int count  = 4;

            if (length == 0) {
                return false;
            }

            rowin.resetRow(pos, length);
            dataStreamIn.readFully(rowin.getBuffer(), count, length - count);

            return true;
        } catch (EOFException e) {
            return false;
        }
    }
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
/**
 *  Constructor when read from the disk into the Cache.
 *
 * @param t table
 * @param in data source
 * @throws IOException
 * @throws HsqlException
 */
public CachedRow(Table t,
                 RowInputInterface in) throws IOException, HsqlException {

    tTable      = t;
    iPos        = in.getPos();
    storageSize = in.getSize();

    int indexcount = t.getIndexCount();

    nPrimaryNode = Node.newNode(this, in, 0, t);

    Node n = nPrimaryNode;

    for (int i = 1; i < indexcount; i++) {
        n.nNext = Node.newNode(this, in, i, t);
        n       = n.nNext;
    }

    oData = in.readData(tTable.getColumnTypes());
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
public void read(RowInputInterface in) {

        this.position = in.getPos();

        int[] array    = bitMap.getIntArray();
        int   capacity = array.length;

        try {
            for (int i = 0; i < capacity; i++) {
                array[i] = in.readInt();
            }
        } catch (IOException e) {
            throw Error.error(ErrorCode.GENERAL_IO_ERROR, e);
        }

        hasChanged = false;
    }
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
/**
 *  Constructor when read from the disk into the Cache.
 *
 * @param t table
 * @param in data source
 * @throws IOException
 * @throws HsqlException
 */
public CachedRow(Table t,
                 RowInputInterface in) throws IOException, HsqlException {

    tTable      = t;
    iPos        = in.getPos();
    storageSize = in.getSize();

    int indexcount = t.getIndexCount();

    nPrimaryNode = Node.newNode(this, in, 0, t);

    Node n = nPrimaryNode;

    for (int i = 1; i < indexcount; i++) {
        n.nNext = Node.newNode(this, in, i, t);
        n       = n.nNext;
    }

    oData = in.readData(tTable.getColumnTypes(), tTable.columnCount);

    setPos(iPos);

    // change from 1.7.0 format - the check is no longer read or written
    // Trace.check(in.readIntData() == iPos, Trace.INPUTSTREAM_ERROR);
}
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
public CachedObject get(RowInputInterface in) {

        try {
            if (isCached) {
                return new RowAVLDisk(table, in);
            }
        } catch (HsqlException e) {
            return null;
        } catch (IOException e1) {
            return null;
        }

        return null;
    }
 

import org.hsqldb.rowio.RowInputInterface; //导入依赖的package包/类
public CachedObject get(RowInputInterface in) {

        try {
            return new RowDiskDataChange(session, table, in);
        } catch (HsqlException e) {
            return null;
        } catch (IOException e1) {
            return null;
        }
    }