開発版ドキュメント · 0.2.3 30c2f8ba · 入門例の検証対象 0.2.3 · 版情報 · 既知の制限

gwexpy.table.SegmentCell#

class gwexpy.table.SegmentCell(value: Any | None = None, loader: Callable[[], Any] | None = None, cacheable: bool = True)#

ベースクラス: object

A single lazy-loadable payload cell.

パラメータ:

value (Any | None) -- The concrete payload object. May be None when a loader is set.
loader (collections.abc.Callable[[], Any] | None) -- A zero-argument callable that returns the payload. Ignored when value is already set.
cacheable (bool) -- When True (default) the result of loader is stored in value after the first call, so subsequent calls return directly.

サンプル

>>> cell = SegmentCell(loader=lambda: 42, cacheable=True)
>>> cell.get()
42
>>> cell.is_loaded()
True

__init__(value: Any | None = None, loader: Callable[[], Any] | None = None, cacheable: bool = True) → None#

Methods

`__init__`([value, loader, cacheable])
`clear`()	Discard the cached value so the next `get()` call re-invokes the loader.
`get`()	Return the payload, loading it if necessary.
`is_loaded`()	Return `True` if the value has been loaded (or was set directly).

Attributes

get() → Any#

Return the payload, loading it if necessary.

is_loaded() → bool#: Return True if the value has been loaded (or was set directly).

clear() → None#: Discard the cached value so the next get() call re-invokes the loader.