org.apache.iceberg.io

Class DataWriter<T>

java.lang.Object

org.apache.iceberg.io.DataWriter<T>

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, FileWriter<T,DataWriteResult>

public class DataWriter<T>
extends java.lang.Object
implements FileWriter<T,DataWriteResult>

Constructor Summary

Constructors

Constructor and Description
DataWriter(FileAppender<T> appender, FileFormat format, java.lang.String location, PartitionSpec spec, StructLike partition, EncryptionKeyMetadata keyMetadata)
DataWriter(FileAppender<T> appender, FileFormat format, java.lang.String location, PartitionSpec spec, StructLike partition, EncryptionKeyMetadata keyMetadata, SortOrder sortOrder)

Method Summary

Modifier and Type	Method and Description
void	close()
long	length() Returns the number of bytes that were currently written by this writer.
DataWriteResult	result() Returns a result that contains information about written DataFiles or DeleteFiles.
DataFile	toDataFile()
void	write(T row) Writes a row to a predefined spec/partition.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.iceberg.io.FileWriter

write

Constructor Detail

DataWriter

public DataWriter(FileAppender<T> appender,
                  FileFormat format,
                  java.lang.String location,
                  PartitionSpec spec,
                  StructLike partition,
                  EncryptionKeyMetadata keyMetadata)

DataWriter

public DataWriter(FileAppender<T> appender,
                  FileFormat format,
                  java.lang.String location,
                  PartitionSpec spec,
                  StructLike partition,
                  EncryptionKeyMetadata keyMetadata,
                  SortOrder sortOrder)

Method Detail

write

public void write(T row)

Description copied from interface: FileWriter

Writes a row to a predefined spec/partition.

Specified by:

write in interface FileWriter<T,DataWriteResult>

Parameters:

row - a data or delete record

length

public long length()

Description copied from interface: FileWriter

Returns the number of bytes that were currently written by this writer.

Specified by:

length in interface FileWriter<T,DataWriteResult>

Returns:

the number of written bytes

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException

toDataFile

public DataFile toDataFile()

result

public DataWriteResult result()

Description copied from interface: FileWriter

Returns a result that contains information about written DataFiles or DeleteFiles. The result is valid only after the writer is closed.

Specified by:

result in interface FileWriter<T,DataWriteResult>

Returns:

the file writer result