Packages

  • package root
    Definition Classes
    root
  • package com
    Definition Classes
    root
  • package adform
    Definition Classes
    com
  • package streamloader

    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 vertica
    Definition Classes
    streamloader
  • package file
    Definition Classes
    vertica
  • package native
    Definition Classes
    file
  • CsvVerticaFileBuilder
  • VerticaFileBuilder
  • VerticaFileBuilderFactory

trait VerticaFileBuilder[-R] extends FileBuilder[R]

A file builder that additionally knows how to generate COPY statements to load resulting files to Vertica tables.

R

type of the records written to files being built.

Linear Supertypes
FileBuilder[R], AnyRef, Any
Known Subclasses
CsvVerticaFileBuilder, NativeVerticaFileBuilder
Ordering
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Inherited
  1. VerticaFileBuilder
  2. FileBuilder
  3. AnyRef
  4. Any
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Visibility
  1. Public
  2. Protected

Abstract Value Members

  1. abstract def build(): Option[File]

    Builds a data file from all the added records and flushes it to disk.

    Builds a data file from all the added records and flushes it to disk. The builder instance can no longer be used after calling this method.

    returns

    The resulting file if any records were added, None otherwise.

    Definition Classes
    FileBuilder
  2. abstract def copyStatement(file: File, table: String, loadMethod: VerticaLoadMethod): String

    Generates a COPY statement to load a given file to the destination table.

    Generates a COPY statement to load a given file to the destination table.

    file

    File being loaded to.

    table

    Vertica table to load data into.

    loadMethod

    The Vertica load method to use in the COPY statement.

    returns

    A COPY statement.

  3. abstract def discard(): Unit

    Discards the file currently being built and closes the builder.

    Discards the file currently being built and closes the builder.

    Definition Classes
    FileBuilder
  4. abstract def getDataSize: Long

    Gets the current size of the data added to the file.

    Gets the current size of the data added to the file.

    Definition Classes
    FileBuilder
  5. abstract def getRecordCount: Long

    Gets the count of records currently written to the file.

    Gets the count of records currently written to the file.

    Definition Classes
    FileBuilder
  6. abstract def write(record: R): Unit

    Adds a record to the file.

    Adds a record to the file.

    Definition Classes
    FileBuilder

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. def compressionStr(compression: Compression): String
    Attributes
    protected
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  9. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. def loadMethodStr(loadMethod: VerticaLoadMethod): String
    Attributes
    protected
  13. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  15. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  16. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  17. def toString(): String
    Definition Classes
    AnyRef → Any
  18. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  19. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  20. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

    (Since version 9)

Inherited from FileBuilder[R]

Inherited from AnyRef

Inherited from Any

Ungrouped