Cloud Datastore V1 Client - Class Count (1.28.2)

Reference documentation and code samples for the Cloud Datastore V1 Client class Count.

Count of entities that match the query.

The COUNT(*) aggregation function operates on the entire entity so it does not require a field reference.

Generated from protobuf message google.datastore.v1.AggregationQuery.Aggregation.Count

Namespace

Google \ Cloud \ Datastore \ V1 \ AggregationQuery \ Aggregation

Methods

__construct

Constructor.

Parameters
Name Description
data array

Optional. Data for populating the Message object.
↳ up_to Google\Protobuf\Int64Value

Optional. Optional constraint on the maximum number of entities to count. This provides a way to set an upper bound on the number of entities to scan, limiting latency, and cost. Unspecified is interpreted as no bound. If a zero value is provided, a count result of zero should always be expected. High-Level Example: AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k ); Requires: * Must be non-negative when present.

getUpTo

Optional. Optional constraint on the maximum number of entities to count.

This provides a way to set an upper bound on the number of entities to scan, limiting latency, and cost. Unspecified is interpreted as no bound. If a zero value is provided, a count result of zero should always be expected. High-Level Example:

AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k );

Requires:

  • Must be non-negative when present.
Returns
Type Description
Google\Protobuf\Int64Value|null

hasUpTo

clearUpTo

getUpToValue

Returns the unboxed value from getUpTo()

Optional. Optional constraint on the maximum number of entities to count. This provides a way to set an upper bound on the number of entities to scan, limiting latency, and cost. Unspecified is interpreted as no bound. If a zero value is provided, a count result of zero should always be expected. High-Level Example:

AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k );

Requires:

  • Must be non-negative when present.
Returns
Type Description
int|string|null

setUpTo

Optional. Optional constraint on the maximum number of entities to count.

This provides a way to set an upper bound on the number of entities to scan, limiting latency, and cost. Unspecified is interpreted as no bound. If a zero value is provided, a count result of zero should always be expected. High-Level Example:

AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k );

Requires:

  • Must be non-negative when present.
Parameter
Name Description
var Google\Protobuf\Int64Value
Returns
Type Description
$this

setUpToValue

Sets the field by wrapping a primitive type in a Google\Protobuf\Int64Value object.

Optional. Optional constraint on the maximum number of entities to count. This provides a way to set an upper bound on the number of entities to scan, limiting latency, and cost. Unspecified is interpreted as no bound. If a zero value is provided, a count result of zero should always be expected. High-Level Example:

AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k );

Requires:

  • Must be non-negative when present.
Parameter
Name Description
var int|string|null
Returns
Type Description
$this