+
−"""Describe the interface classes of the planemo.database package."""
+
−
+
−import abc
+
−
+
−from six import add_metaclass
+
−
+
−
+
−@add_metaclass(abc.ABCMeta)
+
−class DatabaseSource(object):
+
−    """Interface describing a source of profile databases."""
+
−
+
−    @abc.abstractmethod
+
−    def create_database(self, identifier):
+
−        """Create a database with specified short identifier.
+
−
+
−        Throw an exception if it already exists.
+
−        """
+
−
+
−    @abc.abstractmethod
+
−    def delete_database(self, identifier):
+
−        """Delete a database with specified short identifier.
+
−
+
−        Throw an exception if it already exists.
+
−        """
+
−
+
−    @abc.abstractmethod
+
−    def list_databases(self):
+
−        """Return identifiers associated with database source."""
+
−
+
−    @abc.abstractmethod
+
−    def sqlalchemy_url(self, identifier):
+
−        """Return a URL string for use by sqlalchemy."""
+
−
+
−
+
−__all__ = (
+
−    "DatabaseSource",
+
−)