Class KeySelector

bindings/python/fdb/impl.py:1224–1253

class KeySelector(object):
    def __init__(self, key, or_equal, offset):
        self.key = key
        self.or_equal = or_equal
        self.offset = offset

    def __add__(self, offset):
        return KeySelector(self.key, self.or_equal, self.offset + offset)

    def __sub__(self, offset):
        return KeySelector(self.key, self.or_equal, self.offset - offset)

    @classmethod
    def last_less_than(cls, key):
        return cls(key, False, 0)

    @classmethod
    def last_less_or_equal(cls, key):
        return cls(key, True, 0)

    @classmethod
    def first_greater_than(cls, key):
        return cls(key, True, 1)

    @classmethod
    def first_greater_or_equal(cls, key):
        return cls(key, False, 1)

    def __repr__(self):
        return 'KeySelector(%r, %r, %r)' % (self.key, self.or_equal, self.offset)


class KVIter(object):