Package org.apache.ignite.index

Interface IntLongIndexRow

  • All Superinterfaces:
    Comparable<IntLongIndexRow>
    public interface IntLongIndexRow
extends Comparable<IntLongIndexRow>
    Integer key and 31-bit value row.

    Each index row may be either a normal row, or a tombstone. Tombstones are used to explicitly mark removed rows if ordinary removal is not suitable.

    Rows are compared by key and value. A normal row and a tombstone row with equal keys and values are considered equal.

    • Field Detail

      • VALUE_MASK

        static final long VALUE_MASK
        Mask of bits which may be occupied by value.
        See Also:
        Constant Field Values

    • Method Detail

      • getKey

        int getKey()
        Gets row key.
        Returns:
        The row key.

      • getValue

        long getValue()
        Gets row value.
        Returns:
        The row value, always non-negative.

      • isTombstone

        boolean isTombstone()
        Returns:
        Whether this row is a tombstone.

      • lowerBound

        static IntLongIndexRow lowerBound​(int key)
        Creates a new lower bound row for the provided key. The lower bound row is the minimal row among all rows with the same key.
        Parameters:
        key - The row key.
        Returns:
        The lower bound row for the provided key, never null.

      • lowerBound

        static IntLongIndexRow lowerBound​(int key,
                                  long value)
        Creates a new lower bound row for the provided key. The lower bound row is the minimal row among all rows with the same key.
        Parameters:
        key - The row key.
        value - The row value.
        Returns:
        The lower bound row for the provided key, never null.

      • upperBound

        static IntLongIndexRow upperBound​(int key)
        Creates a new upper bound row for the provided key. The upper bound row is the maximal row among all rows with the same key.
        Parameters:
        key - The row key.
        Returns:
        The upper bound row for the provided key, never null.

      • upperBound

        static IntLongIndexRow upperBound​(int key,
                                  long value)
        Creates a new upper bound row for the provided key. The upper bound row is the maximal row among all rows with the same key.
        Parameters:
        key - The row key.
        value - The row value.
        Returns:
        The upper bound row for the provided key, never null.

      • createRow

        static IntLongIndexRow createRow​(int key,
                                 long value)
        Creates a new normal row.
        Parameters:
        key - The row key.
        value - The row value. Must occupy 31 lower bits, i.e. it must be non-negative.
        Returns:
        The new row, never null.

      • createTombstone

        static IntLongIndexRow createTombstone​(int key,
                                       long value)
        Creates a new tombstone row.
        Parameters:
        key - The row key.
        value - The row value. Must occupy 31 lower bits, i.e. it must be non-negative.
        Returns:
        The new row, never null.