Method with_projection

sdk/python/feast/base_feature_view.py:256–284

Returns a copy of this base feature view with the feature view projection set to the given projection. Args: feature_view_projection: The feature view projection to assign to the copy. Raises: ValueError: The name or features of the projecti

(self, feature_view_projection: FeatureViewProjection)

        self.projection = feature_view_projection

    def with_projection(self, feature_view_projection: FeatureViewProjection):
        """
        Returns a copy of this base feature view with the feature view projection set to
        the given projection.

        Args:
            feature_view_projection: The feature view projection to assign to the copy.

        Raises:
            ValueError: The name or features of the projection do not match.
        """
        if feature_view_projection.name != self.name:
            raise ValueError(
                f"The projection for the {self.name} FeatureView cannot be applied because it differs in name. "
                f"The projection is named {feature_view_projection.name} and the name indicates which "
                "FeatureView the projection is for."
            )

        for feature in feature_view_projection.features:
            if feature not in self.features:
                raise ValueError(
                    f"The projection for {self.name} cannot be applied because it contains {feature.name} which the "
                    "FeatureView doesn't have."
                )

        cp = self.__copy__()
        cp.projection = feature_view_projection

        return cp