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Class Aggregation (2.32.2)

public abstract class Aggregation

Represents a Google Cloud Datastore Aggregation which is used with an AggregationQuery.

Inheritance

java.lang.Object > Aggregation

public static AvgAggregation.Builder avg(String propertyReference)

Returns a AvgAggregation builder.

Parameter
Name	Description
`propertyReference`	`String`

Returns
Type	Description
`AvgAggregation.Builder`

public static CountAggregation.Builder count()

Returns a CountAggregation builder.

Returns
Type	Description
`CountAggregation.Builder`

public static SumAggregation.Builder sum(String propertyReference)

Returns a SumAggregation builder.

Parameter
Name	Description
`propertyReference`	`String`

Returns
Type	Description
`SumAggregation.Builder`

public Aggregation(String alias)

Parameter
Name	Description
`alias`	`String`

protected AggregationQuery.Aggregation.Builder aggregationBuilder()

Returns
Type	Description
`AggregationQuery.Aggregation.Builder`

public String getAlias()

Returns the alias for this aggregation.

Returns
Type	Description
`String`

public abstract AggregationQuery.Aggregation toPb()

Returns
Type	Description
`AggregationQuery.Aggregation`