AttachmentGetting

class dsviper.AttachmentGetting

Bases: object

An interface used to retreive a value (aka document) state.

Note: Not directly instantiable.

attachment(attachment_runtime_id: ValueUUId) → Attachment

Return the attachment or raise.

definitions() → DefinitionsConst

Return the definitions.

static diff_keys(current_attachment_getting: AttachmentGetting, other_attachment_getting: AttachmentGetting, attachment: Attachment) → tuple[ValueSet, ValueSet, ValueSet, ValueSet]

Return the tuple (added_keys, removed_keys, different_keys, same_keys).

• added_keys: keys present in ‘other’ and not in ‘current’.

• removed_keys: keys present in ‘current’ and not in ‘other’.

• different_keys: documents present in both but not equal.

• same_keys: documents present in both and equal.

enumerate(attachment: Attachment, *, encoded: bool = True) → list[tuple[ValueKey, _OutputValues]]

Return a list of (key, document).

get(attachment: Attachment, key: ValueKey) → ValueOptional

Return an optional<document_type> associated with the key in the attachment.

has(attachment: Attachment, key: ValueKey) → bool

Return True if a document is present for the key.

keys(attachment: Attachment) → ValueSet

Return all keys.