Package io.pravega.connectors.flink

Class FlinkPravegaReader.Builder<T>

java.lang.Object

io.pravega.connectors.flink.AbstractReaderBuilder<B>

io.pravega.connectors.flink.AbstractStreamingReaderBuilder<T,FlinkPravegaReader.Builder<T>>

io.pravega.connectors.flink.FlinkPravegaReader.Builder<T>

Type Parameters:

T - the element type.

All Implemented Interfaces:

java.io.Serializable

Enclosing class:

FlinkPravegaReader<T>

public static class FlinkPravegaReader.Builder<T>
extends AbstractStreamingReaderBuilder<T,FlinkPravegaReader.Builder<T>>

A builder for FlinkPravegaReader.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class io.pravega.connectors.flink.AbstractStreamingReaderBuilder

AbstractStreamingReaderBuilder.ReaderGroupInfo

Field Summary

Fields inherited from class io.pravega.connectors.flink.AbstractStreamingReaderBuilder

checkpointInitiateTimeout, eventReadTimeout, maxOutstandingCheckpointRequest, readerGroupName, readerGroupRefreshTime, readerGroupScope, uid

Constructor Summary

Constructors

Constructor	Description
Builder()

Method Summary

Modifier and Type	Method	Description
FlinkPravegaReader<T>	build()	Builds a FlinkPravegaReader based on the configuration.
protected FlinkPravegaReader.Builder<T>	builder()
protected org.apache.flink.util.SerializedValue<AssignerWithTimeWindows<T>>	getAssignerWithTimeWindows()
protected org.apache.flink.api.common.serialization.DeserializationSchema<T>	getDeserializationSchema()
FlinkPravegaReader.Builder<T>	withDeserializationSchema(org.apache.flink.api.common.serialization.DeserializationSchema<T> deserializationSchema)	Sets the deserialization schema.
FlinkPravegaReader.Builder<T>	withDeserializationSchemaFromRegistry(java.lang.String groupId, java.lang.Class<T> tClass)	Sets the deserialization schema from schema registry.
FlinkPravegaReader.Builder<T>	withTimestampAssigner(AssignerWithTimeWindows<T> assignerWithTimeWindows)	Sets the timestamp and watermark assigner.

Methods inherited from class io.pravega.connectors.flink.AbstractStreamingReaderBuilder

buildReaderGroupInfo, buildSourceFunction, generateUid, uid, withCheckpointInitiateTimeout, withEventReadTimeout, withMaxOutstandingCheckpointRequest, withReaderGroupName, withReaderGroupRefreshTime, withReaderGroupScope

Methods inherited from class io.pravega.connectors.flink.AbstractReaderBuilder

enableMetrics, forStream, forStream, forStream, forStream, forStream, forStream, getPravegaConfig, isMetricsEnabled, resolveStreams, withPravegaConfig

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder()

Method Detail

builder

protected FlinkPravegaReader.Builder<T> builder()

Specified by:

builder in class AbstractReaderBuilder<FlinkPravegaReader.Builder<T>>

withDeserializationSchema

public FlinkPravegaReader.Builder<T> withDeserializationSchema(org.apache.flink.api.common.serialization.DeserializationSchema<T> deserializationSchema)

Sets the deserialization schema.

Parameters:

deserializationSchema - The deserialization schema

Returns:

Builder instance.

withDeserializationSchemaFromRegistry

public FlinkPravegaReader.Builder<T> withDeserializationSchemaFromRegistry(java.lang.String groupId,
                                                                           java.lang.Class<T> tClass)

Sets the deserialization schema from schema registry. It supports Json, Avro and Protobuf format.

Parameters:

groupId - The group id in schema registry

tClass - The class describing the deserialized type.

Returns:

Builder instance.

withTimestampAssigner

public FlinkPravegaReader.Builder<T> withTimestampAssigner(AssignerWithTimeWindows<T> assignerWithTimeWindows)

Sets the timestamp and watermark assigner.

Parameters:

assignerWithTimeWindows - The timestamp and watermark assigner.

Returns:

Builder instance.

getDeserializationSchema

protected org.apache.flink.api.common.serialization.DeserializationSchema<T> getDeserializationSchema()

Specified by:

getDeserializationSchema in class AbstractStreamingReaderBuilder<T,FlinkPravegaReader.Builder<T>>

getAssignerWithTimeWindows

protected org.apache.flink.util.SerializedValue<AssignerWithTimeWindows<T>> getAssignerWithTimeWindows()

Specified by:

getAssignerWithTimeWindows in class AbstractStreamingReaderBuilder<T,FlinkPravegaReader.Builder<T>>

build

public FlinkPravegaReader<T> build()

Builds a FlinkPravegaReader based on the configuration.

Returns:

An instance of FlinkPravegaReader

Throws:

java.lang.IllegalStateException - if the configuration is invalid.