pypaimon/api/catalog.py

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from abc import ABC, abstractmethod
from typing import Optional
from pypaimon.api import Table, Schema, Database


class Catalog(ABC):
    """
    This interface is responsible for reading and writing
    metadata such as database/table from a paimon catalog.
    """

    @abstractmethod
    def get_database(self, name: str) -> 'Database':
        """Get paimon database identified by the given name."""

    @abstractmethod
    def get_table(self, identifier: str) -> Table:
        """Get paimon table identified by the given Identifier."""

    @abstractmethod
    def create_database(self, name: str, ignore_if_exists: bool, properties: Optional[dict] = None):
        """Create a database with properties."""

    @abstractmethod
    def create_table(self, identifier: str, schema: Schema, ignore_if_exists: bool):
        """Create table."""