Examples with RowInputInterface org.hsqldb_voltpatches.rowio.RowInputInterface used on opensource projects

Example 1 with RowInputInterface

use of org.hsqldb_voltpatches.rowio.RowInputInterface in project voltdb by VoltDB.

the class DataFileDefrag method writeTransactionRows.

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 (HsqlException e) {
        } catch (IOException e) {
        }
    }
}

Example 2 with RowInputInterface

use of org.hsqldb_voltpatches.rowio.RowInputInterface in project voltdb by VoltDB.

the class DataFileCache method getFromFile.

private CachedObject getFromFile(int pos, PersistentStore store, boolean keep) {
    CachedObject object = null;
    boolean outOfMemory = false;
    writeLock.lock();
    try {
        for (int j = 0; j < 5; j++) {
            outOfMemory = false;
            try {
                RowInputInterface rowInput = readObject(pos);
                if (rowInput == null) {
                    return null;
                }
                object = store.get(rowInput);
                break;
            } catch (OutOfMemoryError err) {
                cache.cleanUp();
                outOfMemory = true;
                database.logger.appLog.logContext(err, null);
            }
        }
        if (outOfMemory) {
            throw Error.error(ErrorCode.OUT_OF_MEMORY);
        }
        // for text tables with empty rows at the beginning,
        // pos may move forward in readObject
        pos = object.getPos();
        cache.put(pos, object);
        if (keep) {
            object.keepInMemory(true);
        }
        store.set(object);
        return object;
    } catch (HsqlException e) {
        database.logger.appLog.logContext(e, fileName + " get pos: " + pos);
        throw e;
    } finally {
        writeLock.unlock();
    }
}