Class: Google::Cloud::Firestore::V1::ExistenceFilter
- Inherits:
-
Object
- Object
- Google::Cloud::Firestore::V1::ExistenceFilter
- Extended by:
- Protobuf::MessageExts::ClassMethods
- Includes:
- Protobuf::MessageExts
- Defined in:
- proto_docs/google/firestore/v1/write.rb
Overview
A digest of all the documents that match a given target.
Instance Attribute Summary collapse
-
#count ⇒ ::Integer
The total count of documents that match target_id.
-
#target_id ⇒ ::Integer
The target ID to which this filter applies.
-
#unchanged_names ⇒ ::Google::Cloud::Firestore::V1::BloomFilter
A bloom filter that, despite its name, contains the UTF-8 byte encodings of the resource names of ALL the documents that match target_id, in the form
projects/{project_id}/databases/{database_id}/documents/{document_path}
.
Instance Attribute Details
#count ⇒ ::Integer
Returns The total count of documents that match target_id.
If different from the count of documents in the client that match, the client must manually determine which documents no longer match the target.
The client can use the unchanged_names
bloom filter to assist with
this determination by testing ALL the document names against the filter;
if the document name is NOT in the filter, it means the document no
longer matches the target.
292 293 294 295 |
# File 'proto_docs/google/firestore/v1/write.rb', line 292 class ExistenceFilter include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end |
#target_id ⇒ ::Integer
Returns The target ID to which this filter applies.
292 293 294 295 |
# File 'proto_docs/google/firestore/v1/write.rb', line 292 class ExistenceFilter include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end |
#unchanged_names ⇒ ::Google::Cloud::Firestore::V1::BloomFilter
Returns A bloom filter that, despite its name, contains the UTF-8 byte encodings of
the resource names of ALL the documents that match
target_id, in the form
projects/{project_id}/databases/{database_id}/documents/{document_path}
.
This bloom filter may be omitted at the server's discretion, such as if it is deemed that the client will not make use of it or if it is too computationally expensive to calculate or transmit. Clients must gracefully handle this field being absent by falling back to the logic used before this field existed; that is, re-add the target without a resume token to figure out which documents in the client's cache are out of sync.
292 293 294 295 |
# File 'proto_docs/google/firestore/v1/write.rb', line 292 class ExistenceFilter include ::Google::Protobuf::MessageExts extend ::Google::Protobuf::MessageExts::ClassMethods end |