ChangeStreamResultSetMetadata (google-cloud-platform 2.44.0 API)

java.lang.Object
- org.apache.beam.sdk.io.gcp.spanner.changestreams.dao.ChangeStreamResultSetMetadata

```
public class ChangeStreamResultSetMetadata
extends java.lang.Object
```
Represents telemetry metadata gathered during the consumption of a change stream query. Within this class the caller will be able to retrieve the following information:
- The timestamp at which the query first started.
- The timestamp at which a record streaming started.
- The timestamp at which a record streaming ended.
- The timestamp at which a record was read by the caller.
- The total time for streaming all records within the query.
- The total number of records streamed within the query.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`getNumberOfRecordsRead()`	Returns the total number of records read from the change stream so far.
`com.google.cloud.Timestamp`	`getQueryStartedAt()`	Returns the timestamp at which the change stream query for a `ChangeStreamResultSet` first started.
`com.google.cloud.Timestamp`	`getRecordReadAt()`	Returns the timestamp at which a record was read from the `ChangeStreamResultSet`.
`com.google.cloud.Timestamp`	`getRecordStreamEndedAt()`	Returns the timestamp at which a record finished to be streamed.
`com.google.cloud.Timestamp`	`getRecordStreamStartedAt()`	Returns the timestamp at which a record first started to be streamed.
`org.joda.time.Duration`	`getTotalStreamDuration()`	Returns the total stream duration of change stream records so far.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getQueryStartedAt
```
public com.google.cloud.Timestamp getQueryStartedAt()
```
    Returns the timestamp at which the change stream query for a ChangeStreamResultSet first started.
  - getRecordStreamStartedAt
```
public com.google.cloud.Timestamp getRecordStreamStartedAt()
```
    Returns the timestamp at which a record first started to be streamed.
  - getRecordStreamEndedAt
```
public com.google.cloud.Timestamp getRecordStreamEndedAt()
```
    Returns the timestamp at which a record finished to be streamed.
  - getRecordReadAt
```
public com.google.cloud.Timestamp getRecordReadAt()
```
    Returns the timestamp at which a record was read from the ChangeStreamResultSet.
  - getTotalStreamDuration
```
public org.joda.time.Duration getTotalStreamDuration()
```
    Returns the total stream duration of change stream records so far.
  - getNumberOfRecordsRead
```
public long getNumberOfRecordsRead()
```
    Returns the total number of records read from the change stream so far.