# Interface AggregationBuilder<A> (3.1.0)

3.1.0 (latest) 2.40.0 2.37.0 2.36.0 2.34.0 2.33.3 2.32.3 2.31.4 2.30.0 2.29.1 2.28.2 2.27.1 2.26.4 2.25.2 2.24.3 2.23.0 2.22.0 2.21.3 2.20.2 2.19.2 2.18.5 2.17.6

    public interface AggregationBuilder<A>

An interface to represent the builders which build and customize [Aggregation](https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.aggregation.Aggregation) for [com.google.cloud.datastore.AggregationQuery](https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.AggregationQuery).

Used by com.google.cloud.datastore.AggregationQuery.Builder#addAggregation(AggregationBuilder).

| ## Type Parameter ||
|---|---|
| **Name** | **Description** |
| `A` |   |

## Methods

### build()

    public abstract A build()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `A` |   |