co.cask.cdap.data.file

Interface FileWriter<T>

Type Parameters:

T - Type of data that can be written to the file.

All Superinterfaces:

AutoCloseable, Closeable, Flushable

All Known Implementing Classes:

PartitionedFileWriter, StreamDataFileWriter, TimePartitionedStreamFileWriter

public interface FileWriter<T>
extends Closeable, Flushable

This interface represents classes that can write data to file.

Method Summary

Methods

Modifier and Type	Method and Description
void	append(T event) Appends an event to the file.
void	appendAll(Iterator<? extends T> events) Appends multiple events to the file.

Methods inherited from interface java.io.Closeable

close

Methods inherited from interface java.io.Flushable

flush

Method Detail

append

void append(T event)
            throws IOException

Appends an event to the file.

Parameters:

event - event to append

Throws:

IOException - if fail to append

appendAll

void appendAll(Iterator<? extends T> events)
               throws IOException

Appends multiple events to the file. This method will block until the iterator ends.

Parameters:

events - an Iterator that provides events to append

Throws:

IOException - if fail to append