flink-python/pyflink/table/module.py

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from pyflink.java_gateway import get_gateway

__all__ = ['Module', 'HiveModule']


class Module(object):
    """
    Modules define a set of metadata, including functions, user defined types, operators, rules,
    etc.
    Metadata from modules are regarded as built-in or system metadata that users can take advantages
    of.

    .. versionadded:: 1.12.0
    """

    def __init__(self, j_module):
        self._j_module = j_module


class HiveModule(Module):
    """
    Module to provide Hive built-in metadata.

    .. versionadded:: 1.12.0
    """

    def __init__(self, hive_version: str = None):
        gateway = get_gateway()

        if hive_version is None:
            j_hive_module = gateway.jvm.org.apache.flink.table.module.hive.HiveModule()
        else:
            j_hive_module = gateway.jvm.org.apache.flink.table.module.hive.HiveModule(hive_version)
        super(HiveModule, self).__init__(j_hive_module)