org.apache.beam.sdk.io.aws2.dynamodb

Class DynamoDBIO.Read<T>

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PBegin,org.apache.beam.sdk.values.PCollection<T>>

org.apache.beam.sdk.io.aws2.dynamodb.DynamoDBIO.Read<T>

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

DynamoDBIO

public abstract static class DynamoDBIO.Read<T>
extends org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PBegin,org.apache.beam.sdk.values.PCollection<T>>

Read data from DynamoDB using getScanRequestFn() and emit an element of type T for each ScanResponse using the mapping function getScanResponseMapperFn().

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.beam.sdk.transforms.PTransform

annotations, displayData, name, resourceHints

Constructor Summary

Constructors

Constructor and Description
Read()

Method Summary

Modifier and Type	Method and Description
org.apache.beam.sdk.values.PCollection<T>	expand(org.apache.beam.sdk.values.PBegin input)
DynamoDBIO.Read<java.util.List<java.util.Map<java.lang.String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>>>	items()
DynamoDBIO.Read<T>	withClientConfiguration(ClientConfiguration config) Configuration of DynamoDB client.
DynamoDBIO.Read<T>	withCoder(org.apache.beam.sdk.coders.Coder<T> coder)
DynamoDBIO.Read<T>	withScanRequestFn(org.apache.beam.sdk.transforms.SerializableFunction<java.lang.Void,software.amazon.awssdk.services.dynamodb.model.ScanRequest> fn) Can't pass ScanRequest object directly from client since this object is not full serializable.
DynamoDBIO.Read<T>	withScanResponseMapperFn(org.apache.beam.sdk.transforms.SerializableFunction<software.amazon.awssdk.services.dynamodb.model.ScanResponse,T> scanResultMapperFn)

Methods inherited from class org.apache.beam.sdk.transforms.PTransform

addAnnotation, compose, compose, getAdditionalInputs, getAnnotations, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setDisplayData, setResourceHints, toString, validate, validate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Read

public Read()

Method Detail

withClientConfiguration

public DynamoDBIO.Read<T> withClientConfiguration(ClientConfiguration config)

Configuration of DynamoDB client.

withScanRequestFn

public DynamoDBIO.Read<T> withScanRequestFn(org.apache.beam.sdk.transforms.SerializableFunction<java.lang.Void,software.amazon.awssdk.services.dynamodb.model.ScanRequest> fn)

Can't pass ScanRequest object directly from client since this object is not full serializable.

withScanResponseMapperFn

public DynamoDBIO.Read<T> withScanResponseMapperFn(org.apache.beam.sdk.transforms.SerializableFunction<software.amazon.awssdk.services.dynamodb.model.ScanResponse,T> scanResultMapperFn)

items

public DynamoDBIO.Read<java.util.List<java.util.Map<java.lang.String,software.amazon.awssdk.services.dynamodb.model.AttributeValue>>> items()

withCoder

public DynamoDBIO.Read<T> withCoder(org.apache.beam.sdk.coders.Coder<T> coder)

expand

public org.apache.beam.sdk.values.PCollection<T> expand(org.apache.beam.sdk.values.PBegin input)

Specified by:

expand in class org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PBegin,org.apache.beam.sdk.values.PCollection<T>>