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13 changed files with 30 additions and 128 deletions

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@ -5,8 +5,8 @@ etc. Objects inheriting from the `CO3` base class can then define data transform
that connect to database components, and can be automatically collected for coordinated
database insertion.
`co3` attempts to provide a general interface for interacting with storage media (e.g.,
databases, pickled objects, VSS framework, in-memory key-value stores, etc). The following
`co3` attempts to provide a general interface for interacting with a storage media (e.g.,
database, pickled objects, VSS framework, in-memory key-value stores, etc). The following
top-level classes capture the bulk of the operational model:
- **Database**: reference to a storage medium, with an `Accessor` for accessing data,

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@ -1,11 +1,12 @@
class Component[T]:
'''
Component
'''
Component
General wrapper for storage components to be used in various database contexts. Relations
can be thought of generally as named data containers/entities serving as a fundamental
abstractions within particular storage protocols.
'''
General wrapper for storage components to be used in various database contexts. Relations
can be thought of generally as named data containers/entities serving as a fundamental
abstractions within particular storage protocols.
'''
class Component[T]:
def __init__(self, name, obj: T):
self.name = name
self.obj = obj
@ -18,3 +19,4 @@ class Component[T]:
def get_attributes(self):
raise NotImplementedError

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@ -1,24 +0,0 @@
from contextlib import contextmanager
from co3 import Resource
class Domain[R: Resource]:
'''
General Domain class
'''
def __init__(self, content):
pass
def get_resource(self, url: URL) -> Resource:
pass
@contextmanager
def connect(self, timeout=None):
raise NotImplementedError
class SelectableDomain(Domain):
def select(self, component, *args, **kwargs):
raise NotImplementedError

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@ -13,7 +13,7 @@ class Engine:
derivative Engines, like SQLEngine, mostly just wrap another engine-like object, this
is not the rule. That is, inheriting Engine subtypes shouldn't necessarily expect to
rely on another object per se, and if such an object is required, _this_ is the class
meant to be the skeleton that supports its creation (and not merely a wrapper for some
is meant to be skeleton to supports its creation (and not merely a wrapper for some
other type, although it may appear that way when such a type is in fact readily
available).

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@ -75,7 +75,7 @@ class SQLManager(RelationalManager[SQLTable]):
'''
def __init__(self, *args, **kwargs):
'''
The insert lock is a *re-entrant lock*, meaning the same thread can acquire the
The insert lock is a *reentrant lock*, meaning the same thread can acquire the
lock again without deadlocking (simplifying across methods of this class that
need it).
'''
@ -112,13 +112,11 @@ class SQLManager(RelationalManager[SQLTable]):
def insert(
self,
connection,
component: SQLTable,
component,
inserts: list[dict],
commit=True
):
'''
Insert a group of
Parameters:
'''
with self._insert_lock:
@ -137,13 +135,6 @@ class SQLManager(RelationalManager[SQLTable]):
Perform provided table inserts, aligning the insert format of
``Collector.collect_inserts()``.
Note that the regular ``insert`` actually supports the usual notion of a "bulk
insert," inserting many entries under a single table. This method simply supports
the same but across multiple tables. It does so by just making calls to
``insert()`` after grouping entries for each component in the provided ``inserts``
dict, only committing the transaction after all components inserts have been
staged.
Parameters:
inserts: component-indexed dictionary of insert lists
'''

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@ -1,58 +0,0 @@
import logging
from contextlib import contextmanager
logger = logging.getLogger(__name__)
class Medium[R: Resource]:
'''
Medium base class.
A Resource space
'''
def __init__(self, scope):
pass
@contextmanager
def connect(self, timeout=None):
'''
Open a connection to the database specified by the resource. Exactly what the
returned connection looks like remains relatively unconstrained given the wide
variety of possible database interactions. This function should be invoked in
with-statement contexts, constituting an "interaction session" with the database
(i.e., allowing several actions to be performed using the same connection).
'''
raise NotImplementedError
def execute(self, query: Query[QL]):
pass
class BrowsableMedium[R: Resource](Medium[R]):
def browse(self, uri: URI[R]):
'''
Analog for Read (CRUD), SELECT (SQL), GET (REST)
'''
pass
class ABCDMedium[R: Resource](BrowsableMedium[R]):
def append(self, uri: URI[R], resource: R):
'''
Analog for Create (CRUD), INSERT (SQL), POST/PUT (REST)
'''
pass
def change(self, uri: URI[R], resource: R):
'''
Analog for Update (CRUD), UPDATE (SQL), PUT/PATCH (REST)
Can a URI be another object? Component for ex; could inherit from URI I guess
'''
pass
def delete(self, uri: URI[R]):
'''
Analog for Delete (CRUD), DELETE (SQL), DELETE (REST)
'''
pass

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@ -2,8 +2,7 @@ from typing import Protocol
class Resource:
def content(self) -> BinaryIO:
pass
pass
class SelectableResource(Protocol):
def select(self, component, *args, **kwargs):

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@ -0,0 +1 @@
from co3.resources.disk import DiskResource

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@ -1,12 +1,10 @@
#from co3.resources.disk import DiskResource
from pathlib import Path
from co3.util import paths
from co3.resource import SelectableDomain
from co3.resource import SelectableResource
class DiskDomain(SelectableDomain):
class DiskResource(SelectableResource):
def select(
self,
path_list: str | Path | list[str | Path],

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@ -1,15 +0,0 @@
from urllib import parse
class URI:
def __init__(self, url_str: str):
self.url_str = url_str
class URL(URI):
def __init__(self, url_str: str):
self.url_str = url_str
class URN(URI):
def __init__(self, url_str: str):
self.url_str = url_str

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@ -2,9 +2,6 @@
requires = ["setuptools", "wheel", "setuptools-git-versioning>=2.0,<3"]
build-backend = "setuptools.build_meta"
[tool.setuptools-git-versioning]
enabled = true
[project]
name = "co3"
description = "Lightweight Python ORM for hierarchical storage management"
@ -40,7 +37,6 @@ docs = [
"furo",
"myst-parser",
]
jupyter = ["ipykernel"]
[project.urls]
Homepage = "https://doc.olog.io/co3"

12
requirements.txt Normal file
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@ -0,0 +1,12 @@
# -- sphinx docs --
sphinx
sphinx-togglebutton
furo
myst-parser
sphinx-autodoc-typehints
sqlalchemy
numpy
wcmatch
pytest