Packages

Definition Classes: root

Definition Classes: root

Definition Classes: com

The entry point of the stream loader library is the StreamLoader class, which requires a KafkaSource and a Sink.

The entry point of the stream loader library is the StreamLoader class, which requires a KafkaSource and a Sink. Once started it will subscribe to the provided topics and will start polling and sinking records. The sink has to be able to persist records and to look up committed offsets (technically this is optional, but without it there would be no way to provide any delivery guarantees). A large class of sinks are batch based, implemented as RecordBatchingSink. This sink accumulate batches of records using some RecordBatcher and once ready, stores them to some underlying RecordBatchStorage. A common type of batch is file based, i.e. a batcher might write records to a temporary file and once the file is full the sink commits the file to some underlying storage, such as a database or a distributed file system like HDFS.

A sketch of the class hierarchy illustrating the main classes and interfaces can be seen below.

For concrete storage implementations see the clickhouse, hadoop, s3 and vertica packages. They also contain more file builder implementations than just the CsvFileBuilder included in the core library.

Definition Classes: adform

package clickhouse

Definition Classes: streamloader

package rowbinary

Definition Classes: clickhouse

RowBinaryClickHouseFileBuilder

RowBinaryClickHousePrimitiveTypeWriter

RowBinaryClickHouseRecordEncoder

RowBinaryClickHouseRecordStreamWriter

com.adform.streamloader.clickhouse

rowbinary

package rowbinary

Ordering

Alphabetic

Visibility

Public
Protected

Type Members

class RowBinaryClickHouseFileBuilder[-R] extends StreamFileBuilder[R] with ClickHouseFileBuilder[R]
File builder for the ClickHouse native RowBinary file format, requires an implicit RowBinaryClickHouseRecordEncoder in scope.
File builder for the ClickHouse native RowBinary file format, requires an implicit RowBinaryClickHouseRecordEncoder in scope.
R
type of the records written to files being built.
trait RowBinaryClickHousePrimitiveTypeWriter extends LittleEndianByteWriter
Implementations for writing primitive data types in the ClickHouse native RowBinary encoding.
trait RowBinaryClickHouseRecordEncoder[R] extends AnyRef
An encoder for the RowBinary ClickHouse file format.
An encoder for the RowBinary ClickHouse file format. Implementations need to define the encoding by composing calls to a provided primitive type writer.
R
Type of records being encoded.
class RowBinaryClickHouseRecordStreamWriter[R] extends RecordStreamWriter[R]
Stream writer implementation that encodes records using an implicit RowBinaryClickHouseRecordEncoder and writes them to the provided output stream.

Value Members

object RowBinaryClickHouseRecordEncoder

Packages

rowbinary

package rowbinary

Type Members

Value Members

Ungrouped

rowbinary