Read Modify Write Rules
class google.cloud.bigtable.data.read_modify_write_rules.AppendValueRule(family: str, qualifier: bytes | str, append_value: bytes | str)
Bases: google.cloud.bigtable.data.read_modify_write_rules.ReadModifyWriteRule
Rule to append a value to a cell’s value.
Parameters
family – The family name of the cell to append to.
qualifier – The qualifier of the cell to append to.
append_value – The value to append to the cell’s value.
Raises
TypeError – If append_value is not bytes or str.
class google.cloud.bigtable.data.read_modify_write_rules.IncrementRule(family: str, qualifier: bytes | str, increment_amount: int = 1)
Bases: google.cloud.bigtable.data.read_modify_write_rules.ReadModifyWriteRule
Rule to increment a cell’s value.
Parameters
family – The family name of the cell to increment.
qualifier – The qualifier of the cell to increment.
increment_amount – The amount to increment the cell’s value. Must be between -2**63 and 2**63 (64-bit signed int).
Raises
TypeError – If increment_amount is not an integer.
ValueError – If increment_amount is not between -2**63 and 2**63 (64-bit signed int).
class google.cloud.bigtable.data.read_modify_write_rules.ReadModifyWriteRule(family: str, qualifier: bytes | str)
Bases: abc.ABC
Abstract base class for read-modify-write rules.