Interface IteratorFactory


  • public interface IteratorFactory
    Factory pattern for construction of rowIterators of the FrameBlock.
    • Method Detail

      • getStringRowIterator

        static RowIterator<String> getStringRowIterator​(FrameBlock fb)
        Get a row iterator over the frame where all fields are encoded as strings independent of their value types.
        Parameters:
        fb - The frame to iterate through
        Returns:
        string array iterator
      • getStringRowIterator

        static RowIterator<String> getStringRowIterator​(FrameBlock fb,
                                                        int[] cols)
        Get a row iterator over the frame where all selected fields are encoded as strings independent of their value types.
        Parameters:
        fb - The frame to iterate through
        cols - column selection, 1-based
        Returns:
        string array iterator
      • getStringRowIterator

        static RowIterator<String> getStringRowIterator​(FrameBlock fb,
                                                        int colID)
        Get a row iterator over the frame where all selected fields are encoded as strings independent of their value types.
        Parameters:
        fb - The frame to iterate through
        colID - column selection, 1-based
        Returns:
        string array iterator
      • getStringRowIterator

        static RowIterator<String> getStringRowIterator​(FrameBlock fb,
                                                        int rl,
                                                        int ru)
        Get a row iterator over the frame where all fields are encoded as strings independent of their value types.
        Parameters:
        fb - The frame to iterate through
        rl - lower row index
        ru - upper row index
        Returns:
        string array iterator
      • getStringRowIterator

        static RowIterator<String> getStringRowIterator​(FrameBlock fb,
                                                        int rl,
                                                        int ru,
                                                        int[] cols)
        Get a row iterator over the frame where all selected fields are encoded as strings independent of their value types.
        Parameters:
        fb - The frame to iterate through
        rl - lower row index
        ru - upper row index
        cols - column selection, 1-based
        Returns:
        string array iterator
      • getStringRowIterator

        static RowIterator<String> getStringRowIterator​(FrameBlock fb,
                                                        int rl,
                                                        int ru,
                                                        int colID)
        Get a row iterator over the frame where all selected fields are encoded as strings independent of their value types.
        Parameters:
        fb - The frame to iterate through
        rl - lower row index
        ru - upper row index
        colID - columnID, 1-based
        Returns:
        string array iterator
      • getObjectRowIterator

        static RowIterator<Object> getObjectRowIterator​(FrameBlock fb)
        Get a row iterator over the frame where all fields are encoded as boxed objects according to their value types.
        Parameters:
        fb - The frame to iterate through
        Returns:
        object array iterator
      • getObjectRowIterator

        static RowIterator<Object> getObjectRowIterator​(FrameBlock fb,
                                                        Types.ValueType[] schema)
        Get a row iterator over the frame where all fields are encoded as boxed objects according to the value types of the provided target schema.
        Parameters:
        fb - The frame to iterate through
        schema - target schema of objects
        Returns:
        object array iterator
      • getObjectRowIterator

        static RowIterator<Object> getObjectRowIterator​(FrameBlock fb,
                                                        int[] cols)
        Get a row iterator over the frame where all selected fields are encoded as boxed objects according to their value types.
        Parameters:
        fb - The frame to iterate through
        cols - column selection, 1-based
        Returns:
        object array iterator
      • getObjectRowIterator

        static RowIterator<Object> getObjectRowIterator​(FrameBlock fb,
                                                        int colID)
        Get a row iterator over the frame where all selected fields are encoded as objects according to their value types.
        Parameters:
        fb - The frame to iterate through
        colID - column selection, 1-based
        Returns:
        object array iterator
      • getObjectRowIterator

        static RowIterator<Object> getObjectRowIterator​(FrameBlock fb,
                                                        int rl,
                                                        int ru)
        Get a row iterator over the frame where all fields are encoded as boxed objects according to their value types.
        Parameters:
        fb - The frame to iterate through
        rl - lower row index
        ru - upper row index
        Returns:
        object array iterator
      • getObjectRowIterator

        static RowIterator<Object> getObjectRowIterator​(FrameBlock fb,
                                                        int rl,
                                                        int ru,
                                                        int[] cols)
        Get a row iterator over the frame where all selected fields are encoded as boxed objects according to their value types.
        Parameters:
        fb - The frame to iterate through
        rl - lower row index
        ru - upper row index
        cols - column selection, 1-based
        Returns:
        object array iterator
      • getObjectRowIterator

        static RowIterator<Object> getObjectRowIterator​(FrameBlock fb,
                                                        int rl,
                                                        int ru,
                                                        int colID)
        Get a row iterator over the frame where all selected fields are encoded as boxed objects according to their value types.
        Parameters:
        fb - The frame to iterate through
        rl - lower row index
        ru - upper row index
        colID - column selection, 1-based
        Returns:
        object array iterator