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 PBReadOnly.

Options specific to read-only transactions.

Generated from protobuf message `google.datastore.v1.TransactionOptions.ReadOnly`

## Namespace

Google \\ Cloud \\ Datastore \\ V1 \\ TransactionOptions

## Methods

### __construct

Constructor.

| **Parameters** ||
|---|---|
| **Name** | **Description** |
| `data` | `array` Optional. Data for populating the Message object. |
| `↳ read_time` | `Google\Protobuf\Timestamp` Reads entities at the given time. This must be a microsecond precision timestamp within the past one hour, or if Point-in-Time Recovery is enabled, can additionally be a whole minute timestamp within the past 7 days. |

### getReadTime

Reads entities at the given time.

This must be a microsecond precision timestamp within the past one hour,
or if Point-in-Time Recovery is enabled, can additionally be a whole
minute timestamp within the past 7 days.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `Google\Protobuf\Timestamp|null` |   |

### hasReadTime

### clearReadTime

### setReadTime

Reads entities at the given time.

This must be a microsecond precision timestamp within the past one hour,
or if Point-in-Time Recovery is enabled, can additionally be a whole
minute timestamp within the past 7 days.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `var` | `Google\Protobuf\Timestamp` |

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