Interface BlockList

  • All Known Implementing Classes:
    RawDataBlockList, SmallDocumentBlockList

    public interface BlockList
    Interface for lists of blocks that are mapped by block allocation tables
    Author:
    Marc Johnson (mjohnson at apache dot org
    • Method Detail

      • zap

        void zap​(int index)
        remove the specified block from the list
        Parameters:
        index - the index of the specified block; if the index is out of range, that's ok
      • remove

        ListManagedBlock remove​(int index)
                         throws IOException
        remove and return the specified block from the list
        Parameters:
        index - the index of the specified block
        Returns:
        the specified block
        Throws:
        IOException - if the index is out of range or has already been removed
      • fetchBlocks

        ListManagedBlock[] fetchBlocks​(int startBlock)
                                throws IOException
        get the blocks making up a particular stream in the list. The blocks are removed from the list.
        Parameters:
        startBlock - the index of the first block in the stream
        Returns:
        the stream as an array of correctly ordered blocks
        Throws:
        IOException - if blocks are missing