BigQuerySchemaTransformReadProvider (google-cloud-platform 2.44.0 API)

java.lang.Object
- org.apache.beam.sdk.schemas.transforms.TypedSchemaTransformProvider<BigQuerySchemaTransformReadConfiguration>
- - org.apache.beam.sdk.io.gcp.bigquery.BigQuerySchemaTransformReadProvider

All Implemented Interfaces:

org.apache.beam.sdk.schemas.transforms.SchemaTransformProvider
```
@Internal
@Experimental(SCHEMAS)
public class BigQuerySchemaTransformReadProvider
extends org.apache.beam.sdk.schemas.transforms.TypedSchemaTransformProvider<BigQuerySchemaTransformReadConfiguration>
```
An implementation of TypedSchemaTransformProvider for BigQuery read jobs configured using BigQuerySchemaTransformReadConfiguration.
Internal only: This class is actively being worked on, and it will likely change. We provide no backwards compatibility guarantees, and it should not be implemented outside the Beam repository.

Constructor Summary

Constructors
Constructor Description

BigQuerySchemaTransformReadProvider()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected java.lang.Class<BigQuerySchemaTransformReadConfiguration>`	`configurationClass()`	Returns the expected class of the configuration.
`protected org.apache.beam.sdk.schemas.transforms.SchemaTransform`	`from(BigQuerySchemaTransformReadConfiguration configuration)`	Returns the expected `SchemaTransform` of the configuration.
`java.lang.String`	`identifier()`	Implementation of the `TypedSchemaTransformProvider` identifier method.
`java.util.List<java.lang.String>`	`inputCollectionNames()`	Implementation of the `TypedSchemaTransformProvider` inputCollectionNames method.
`java.util.List<java.lang.String>`	`outputCollectionNames()`	Implementation of the `TypedSchemaTransformProvider` outputCollectionNames method.

Methods inherited from class org.apache.beam.sdk.schemas.transforms.TypedSchemaTransformProvider
configurationSchema, dependencies, from

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

- Constructor Detail
  - BigQuerySchemaTransformReadProvider
```
public BigQuerySchemaTransformReadProvider()
```
- Method Detail
  - configurationClass
```
protected java.lang.Class<BigQuerySchemaTransformReadConfiguration> configurationClass()
```
    Returns the expected class of the configuration.
    
    Specified by:
    
    configurationClass in class org.apache.beam.sdk.schemas.transforms.TypedSchemaTransformProvider<BigQuerySchemaTransformReadConfiguration>
  - from
```
protected org.apache.beam.sdk.schemas.transforms.SchemaTransform from(BigQuerySchemaTransformReadConfiguration configuration)
```
    Returns the expected SchemaTransform of the configuration.
    
    Specified by:
    
    from in class org.apache.beam.sdk.schemas.transforms.TypedSchemaTransformProvider<BigQuerySchemaTransformReadConfiguration>
  - identifier
```
public java.lang.String identifier()
```
    Implementation of the TypedSchemaTransformProvider identifier method.
  - inputCollectionNames
```
public java.util.List<java.lang.String> inputCollectionNames()
```
    Implementation of the TypedSchemaTransformProvider inputCollectionNames method. Since no input is expected, this returns an empty list.
  - outputCollectionNames
```
public java.util.List<java.lang.String> outputCollectionNames()
```
    Implementation of the TypedSchemaTransformProvider outputCollectionNames method. Since a single output is expected, this returns a list with a single name.