Пример #1
0
  public void writeBytes(int record, ByteSequence bytes, boolean fixedSize) throws IOException {
    synchronized (myLock) {
      final int requiredLength = bytes.getLength();
      final int currentCapacity = myRecordsTable.getCapacity(record);

      final int currentSize = myRecordsTable.getSize(record);
      assert currentSize >= 0;

      if (requiredLength == 0 && currentSize == 0) return;

      final long address;
      if (currentCapacity >= requiredLength) {
        address = myRecordsTable.getAddress(record);
      } else {
        myDataTable.reclaimSpace(currentCapacity);

        int newCapacity =
            fixedSize
                ? requiredLength
                : myCapacityAllocationPolicy.calculateCapacity(requiredLength);
        if (newCapacity < requiredLength) newCapacity = requiredLength;
        address = myDataTable.allocateSpace(newCapacity);
        myRecordsTable.setAddress(record, address);
        myRecordsTable.setCapacity(record, newCapacity);
      }

      myDataTable.writeBytes(address, bytes.getBytes(), bytes.getOffset(), bytes.getLength());
      myRecordsTable.setSize(record, requiredLength);
    }
  }
Пример #2
0
 protected void doDeleteRecord(int record) throws IOException {
   myDataTable.reclaimSpace(myRecordsTable.getCapacity(record));
   myRecordsTable.deleteRecord(record);
 }