Cloud Firestore V1 Client - Class ExistenceFilter (1.46.0)

Reference documentation and code samples for the Cloud Firestore V1 Client class ExistenceFilter.

A digest of all the documents that match a given target.

Generated from protobuf message google.firestore.v1.ExistenceFilter

Namespace

Google \ Cloud \ Firestore \ V1

Methods

__construct

Constructor.

Parameters
Name Description
data array

Optional. Data for populating the Message object.

↳ target_id int

The target ID to which this filter applies.

↳ count int

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.

↳ 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}. 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.

getTargetId

The target ID to which this filter applies.

Returns
Type Description
int

setTargetId

The target ID to which this filter applies.

Parameter
Name Description
var int
Returns
Type Description
$this

getCount

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.

Returns
Type Description
int

setCount

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.

Parameter
Name Description
var int
Returns
Type Description
$this

getUnchangedNames

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.

Returns
Type Description
Google\Cloud\Firestore\V1\BloomFilter|null

hasUnchangedNames

clearUnchangedNames

setUnchangedNames

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.

Parameter
Name Description
var Google\Cloud\Firestore\V1\BloomFilter
Returns
Type Description
$this