2.2.0 (latest) 2.0.6 1.34.2 1.33.1 1.32.3 1.31.0 1.30.0 1.29.2 1.28.2 1.26.0 1.25.0 1.24.4 1.23.0 1.22.1 1.21.2 1.19.0 1.18.1 1.17.1 Reference documentation and code samples for the Cloud Datastore V1 Client class BeginTransactionRequest.

The request for
[Datastore.BeginTransaction](https://docs.cloud.google.com/php/docs/reference/cloud-datastore/latest/V1.Client.DatastoreClient#_Google_Cloud_Datastore_V1_Client_DatastoreClient__beginTransaction__).

Generated from protobuf message `google.datastore.v1.BeginTransactionRequest`

## Namespace

Google \\ Cloud \\ Datastore \\ V1

## Methods

### __construct

Constructor.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `data` | `array` Optional. Data for populating the Message object. |
| `↳ project_id` | `string` Required. The ID of the project against which to make the request. |
| `↳ database_id` | `string` The ID of the database against which to make the request. '(default)' is not allowed; please use empty string '' to refer the default database. |
| `↳ transaction_options` | `https://docs.cloud.google.com/php/docs/reference/cloud-datastore/latest/V1.TransactionOptions` Options for a new transaction. |
| `↳ request_options` | `https://docs.cloud.google.com/php/docs/reference/cloud-datastore/latest/V1.RequestOptions` Optional. The options for this request. |

### getProjectId

Required. The ID of the project against which to make the request.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `string` |   |

### setProjectId

Required. The ID of the project against which to make the request.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `var` | `string` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `$this` |   |

### getDatabaseId

The ID of the database against which to make the request.

'(default)' is not allowed; please use empty string '' to refer the default
database.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `string` |   |

### setDatabaseId

The ID of the database against which to make the request.

'(default)' is not allowed; please use empty string '' to refer the default
database.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `var` | `string` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `$this` |   |

### getTransactionOptions

Options for a new transaction.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/php/docs/reference/cloud-datastore/latest/V1.TransactionOptions|null` |   |

### hasTransactionOptions

### clearTransactionOptions

### setTransactionOptions

Options for a new transaction.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `var` | `https://docs.cloud.google.com/php/docs/reference/cloud-datastore/latest/V1.TransactionOptions` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `$this` |   |

### getRequestOptions

Optional. The options for this request.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/php/docs/reference/cloud-datastore/latest/V1.RequestOptions|null` |   |

### hasRequestOptions

### clearRequestOptions

### setRequestOptions

Optional. The options for this request.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `var` | `https://docs.cloud.google.com/php/docs/reference/cloud-datastore/latest/V1.RequestOptions` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `$this` |   |

### static::build

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `projectId` | `string` Required. The ID of the project against which to make the request. |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/php/docs/reference/cloud-datastore/latest/V1.BeginTransactionRequest` |   |