Issue #680 move read() from JobDatabaseInterface to `FullDataFram…

…eJobDatabase`

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   this is not translated automatically anymore to deprecated, non-standard `read_vector` usage.
   Instead, if it is a local GeoJSON file, the GeoJSON data will be loaded directly client-side.
   ([#104](https://github.com/Open-EO/openeo-python-client/issues/104), [#457](https://github.com/Open-EO/openeo-python-client/issues/457))
+- Move `read()` method from general `JobDatabaseInterface` to more specific `FullDataFrameJobDatabase` ([#680](https://github.com/Open-EO/openeo-python-client/issues/680))
 
 ### Removed
 

openeo/extra/job_management.py

@@ -70,15 +70,6 @@ def exists(self) -> bool:
         """Does the job database already exist, to read job data from?"""
         ...
 
-    @abc.abstractmethod
-    def read(self) -> pd.DataFrame:
-        """
-        Read job data from the database as pandas DataFrame.
-
-        :return: loaded job data.
-        """
-        ...
-
     @abc.abstractmethod
     def persist(self, df: pd.DataFrame):
         """
@@ -364,7 +355,6 @@ def start_job_thread(self, start_job: Callable[[], BatchJob], job_db: JobDatabas
 
         # Resume from existing db
         _log.info(f"Resuming `run_jobs` from existing {job_db}")
-        df = job_db.read()
 
         self._stop_thread = False
         def run_loop():
@@ -810,6 +800,15 @@ def initialize_from_df(self, df: pd.DataFrame, *, on_exists: str = "error"):
         # Return self to allow chaining with constructor.
         return self
 
+    @abc.abstractmethod
+    def read(self) -> pd.DataFrame:
+        """
+        Read job data from the database as pandas DataFrame.
+
+        :return: loaded job data.
+        """
+        ...
+
     @property
     def df(self) -> pd.DataFrame:
         if self._df is None: