MapperFactory (google-cloud-platform 2.68.0 API)

java.lang.Object
- org.apache.beam.sdk.io.gcp.spanner.changestreams.mapper.MapperFactory

All Implemented Interfaces:

java.io.Serializable
```
public class MapperFactory
extends java.lang.Object
implements java.io.Serializable
```
Factory class for creating instances that will map a struct to a connector model. The instances created are all singletons.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

MapperFactory(com.google.cloud.spanner.Dialect spannerChangeStreamDatabaseDialect)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ChangeStreamRecordMapper`	`changeStreamRecordMapper()`	Creates and returns a singleton instance of a mapper class capable of transforming a `Struct` into a `List` of `ChangeStreamRecord` subclasses.
`PartitionMetadataMapper`	`partitionMetadataMapper()`	Creates and returns a single instance of a mapper class capable of transforming a `Struct` into a `PartitionMetadata` class.

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

- Constructor Detail
  - MapperFactory
```
public MapperFactory(com.google.cloud.spanner.Dialect spannerChangeStreamDatabaseDialect)
```
- Method Detail
  - changeStreamRecordMapper
```
public ChangeStreamRecordMapper changeStreamRecordMapper()
```
    Creates and returns a singleton instance of a mapper class capable of transforming a Struct into a List of ChangeStreamRecord subclasses.
    This method is thread safe.
    
    Returns:
    
    singleton instance of the ChangeStreamRecordMapper
  - partitionMetadataMapper
```
public PartitionMetadataMapper partitionMetadataMapper()
```
    Creates and returns a single instance of a mapper class capable of transforming a Struct into a PartitionMetadata class.
    This method is thread safe.
    
    Returns:
    
    singleton instance of the PartitionMetadataMapper