# Class AggregationQuery.Aggregation.Count (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 static final class AggregationQuery.Aggregation.Count extends GeneratedMessage implements AggregationQuery.Aggregation.CountOrBuilder

Count of entities that match the query.

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

Protobuf type `google.datastore.v1.AggregationQuery.Aggregation.Count`

## Inheritance

[Object](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) \> [AbstractMessageLite\<MessageType,BuilderType\>](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.AbstractMessageLite.html) \> [AbstractMessage](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.AbstractMessage.html) \> [GeneratedMessage](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html) \> AggregationQuery.Aggregation.Count

## Implements

[AggregationQuery.Aggregation.CountOrBuilder](https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.CountOrBuilder)

## Inherited Members

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com.google.protobuf.GeneratedMessage.emptyDoubleList() com.google.protobuf.GeneratedMessage.emptyFloatList() com.google.protobuf.GeneratedMessage.emptyIntList() com.google.protobuf.GeneratedMessage.emptyLongList() [GeneratedMessage.getAllFields()](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_getAllFields__) [GeneratedMessage.getDescriptorForType()](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_getDescriptorForType__) [GeneratedMessage.getField(Descriptors.FieldDescriptor)](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_getField_com_google_protobuf_Descriptors_FieldDescriptor_) 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com.google.protobuf.GeneratedMessage.isStringEmpty(java.lang.Object) [GeneratedMessage.makeExtensionsImmutable()](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_makeExtensionsImmutable__) com.google.protobuf.GeneratedMessage.mergeFromAndMakeImmutableInternal(com.google.protobuf.CodedInputStream,com.google.protobuf.ExtensionRegistryLite) com.google.protobuf.GeneratedMessage.newInstance(com.google.protobuf.GeneratedMessage.UnusedPrivateParameter) [GeneratedMessage.parseUnknownField(CodedInputStream,UnknownFieldSet.Builder,ExtensionRegistryLite,int)](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_parseUnknownField_com_google_protobuf_CodedInputStream_com_google_protobuf_UnknownFieldSet_Builder_com_google_protobuf_ExtensionRegistryLite_int_) 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## Static Fields

### UP_TO_FIELD_NUMBER

    public static final int UP_TO_FIELD_NUMBER

| **Field Value** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

## Static Methods

### getDefaultInstance()

    public static AggregationQuery.Aggregation.Count getDefaultInstance()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

### getDescriptor()

    public static final Descriptors.Descriptor getDescriptor()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.Descriptors.Descriptor.html` |   |

### newBuilder()

    public static AggregationQuery.Aggregation.Count.Builder newBuilder()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count.Builder` |   |

### newBuilder(AggregationQuery.Aggregation.Count prototype)

    public static AggregationQuery.Aggregation.Count.Builder newBuilder(AggregationQuery.Aggregation.Count prototype)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `prototype` | `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count.Builder` |   |

### parseDelimitedFrom(InputStream input)

    public static AggregationQuery.Aggregation.Count parseDelimitedFrom(InputStream input)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `input` | `https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html` |   |

### parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

    public static AggregationQuery.Aggregation.Count parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `input` | `https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html` |
| `extensionRegistry` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.ExtensionRegistryLite.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html` |   |

### parseFrom(byte\[\] data)

    public static AggregationQuery.Aggregation.Count parseFrom(byte[] data)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `data` | `byte[]` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.InvalidProtocolBufferException.html` |   |

### parseFrom(byte\[\] data, ExtensionRegistryLite extensionRegistry)

    public static AggregationQuery.Aggregation.Count parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `data` | `byte[]` |
| `extensionRegistry` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.ExtensionRegistryLite.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.InvalidProtocolBufferException.html` |   |

### parseFrom(ByteString data)

    public static AggregationQuery.Aggregation.Count parseFrom(ByteString data)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `data` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.ByteString.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.InvalidProtocolBufferException.html` |   |

### parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)

    public static AggregationQuery.Aggregation.Count parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `data` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.ByteString.html` |
| `extensionRegistry` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.ExtensionRegistryLite.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.InvalidProtocolBufferException.html` |   |

### parseFrom(CodedInputStream input)

    public static AggregationQuery.Aggregation.Count parseFrom(CodedInputStream input)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `input` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.CodedInputStream.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html` |   |

### parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)

    public static AggregationQuery.Aggregation.Count parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `input` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.CodedInputStream.html` |
| `extensionRegistry` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.ExtensionRegistryLite.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html` |   |

### parseFrom(InputStream input)

    public static AggregationQuery.Aggregation.Count parseFrom(InputStream input)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `input` | `https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html` |   |

### parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

    public static AggregationQuery.Aggregation.Count parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `input` | `https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html` |
| `extensionRegistry` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.ExtensionRegistryLite.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html` |   |

### parseFrom(ByteBuffer data)

    public static AggregationQuery.Aggregation.Count parseFrom(ByteBuffer data)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `data` | `https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.InvalidProtocolBufferException.html` |   |

### parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)

    public static AggregationQuery.Aggregation.Count parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `data` | `https://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html` |
| `extensionRegistry` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.ExtensionRegistryLite.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.InvalidProtocolBufferException.html` |   |

### parser()

    public static Parser<AggregationQuery.Aggregation.Count> parser()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.Parser.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count>` |   |

## Methods

### equals(Object obj)

    public boolean equals(Object obj)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `obj` | `https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

**Overrides** [AbstractMessage.equals(Object other)](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.AbstractMessage.html#com_google_protobuf_AbstractMessage_equals_java_lang_Object_)

### getDefaultInstanceForType()

    public AggregationQuery.Aggregation.Count getDefaultInstanceForType()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count` |   |

### getParserForType()

    public Parser<AggregationQuery.Aggregation.Count> getParserForType()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.Parser.html<https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count>` |   |

**Overrides** [GeneratedMessage.getParserForType()](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_getParserForType__)

### getSerializedSize()

    public int getSerializedSize()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

**Overrides** [GeneratedMessage.getSerializedSize()](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_getSerializedSize__)

### getUpTo()

    public Int64Value 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:

`<code><code>
AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k );
</code></code>`

Requires:

- Must be non-negative when present.

`.google.protobuf.Int64Value up_to = 1 [(.google.api.field_behavior) = OPTIONAL];
`

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.Int64Value.html` | The upTo. |

### getUpToOrBuilder()

    public Int64ValueOrBuilder getUpToOrBuilder()

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:

`<code><code>
AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k );
</code></code>`

Requires:

- Must be non-negative when present.

`.google.protobuf.Int64Value up_to = 1 [(.google.api.field_behavior) = OPTIONAL];
`

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.Int64ValueOrBuilder.html` |   |

### hasUpTo()

    public boolean hasUpTo()

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:

`<code><code>
AGGREGATE COUNT_UP_TO(1000) OVER ( SELECT * FROM k );
</code></code>`

Requires:

- Must be non-negative when present.

`.google.protobuf.Int64Value up_to = 1 [(.google.api.field_behavior) = OPTIONAL];
`

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` | Whether the upTo field is set. |

### hashCode()

    public int hashCode()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

**Overrides** [AbstractMessage.hashCode()](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.AbstractMessage.html#com_google_protobuf_AbstractMessage_hashCode__)

### internalGetFieldAccessorTable()

    protected GeneratedMessage.FieldAccessorTable internalGetFieldAccessorTable()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.FieldAccessorTable.html` |   |

**Overrides** [GeneratedMessage.internalGetFieldAccessorTable()](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_internalGetFieldAccessorTable__)

### isInitialized()

    public final boolean isInitialized()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

**Overrides** [GeneratedMessage.isInitialized()](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_isInitialized__)

### newBuilderForType()

    public AggregationQuery.Aggregation.Count.Builder newBuilderForType()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count.Builder` |   |

### newBuilderForType(AbstractMessage.BuilderParent parent)

    protected AggregationQuery.Aggregation.Count.Builder newBuilderForType(AbstractMessage.BuilderParent parent)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `parent` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.AbstractMessage.BuilderParent.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count.Builder` |   |

**Overrides** [AbstractMessage.newBuilderForType(AbstractMessage.BuilderParent parent)](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.AbstractMessage.html#com_google_protobuf_AbstractMessage_newBuilderForType_com_google_protobuf_AbstractMessage_BuilderParent_)

### toBuilder()

    public AggregationQuery.Aggregation.Count.Builder toBuilder()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.datastore.v1.AggregationQuery.Aggregation.Count.Builder` |   |

### writeTo(CodedOutputStream output)

    public void writeTo(CodedOutputStream output)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `output` | `https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.CodedOutputStream.html` |

**Overrides** [GeneratedMessage.writeTo(CodedOutputStream output)](https://cloud.google.com/java/docs/reference/protobuf/latest/com.google.protobuf.GeneratedMessage.html#com_google_protobuf_GeneratedMessage_writeTo_com_google_protobuf_CodedOutputStream_)

| **Exceptions** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html` |   |