ch.epfl.bbp.uima.utils

Class LoadDataFileWriter

java.lang.Object

ch.epfl.bbp.io.TextFileWriter

ch.epfl.bbp.uima.utils.LoadDataFileWriter

All Implemented Interfaces:

Closeable, AutoCloseable

public class LoadDataFileWriter
extends TextFileWriter

To write LOAD_DATA mysql files. LOAD_DATA is significantly faster than inserts, even in batches.
Load command:

mysql --local-infile

LOAD DATA LOCALINFILE 'myfile.txt' INTO TABLE mytable LINES TERMINATED BY '\n';

LOAD DATA LOCAL INFILE 'myfile.txt' INTO TABLE mytable FIELDS TERMINATED BY ' ' LINES TERMINATED BY '\n' (`field1`, `field2`, ...);
[IGNORE number LINES] to skip header
Load format:
;

Author:

renaud.richardet@epfl.ch

Field Summary

Fields inherited from class ch.epfl.bbp.io.TextFileWriter

writer

Constructor Summary

Constructors

Constructor and Description
LoadDataFileWriter(File f) Uses a tab as as separator
LoadDataFileWriter(File f, String separator)
LoadDataFileWriter(File f, String separator, String... headers)

Method Summary

Methods

Modifier and Type	Method and Description
void	addLoadLine(Object... datas)

Methods inherited from class ch.epfl.bbp.io.TextFileWriter

addLine, addText, close, flush, write, write

Methods inherited from class java.lang.Object

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

Constructor Detail

LoadDataFileWriter

public LoadDataFileWriter(File f)
                   throws IOException

Uses a tab as as separator

Throws:

IOException

LoadDataFileWriter

public LoadDataFileWriter(File f,
                  String separator)
                   throws IOException

Throws:

IOException

LoadDataFileWriter

public LoadDataFileWriter(File f,
                  String separator,
                  String... headers)
                   throws IOException

Throws:

IOException

Method Detail

addLoadLine

public void addLoadLine(Object... datas)

Parameters:

datas - make sure it's a varargs or an array!