Class DataLogJNI

java.lang.Object

org.wpilib.datalog.DataLogJNI

public class DataLogJNI
extends Object

DataLog JNI Functions.

See Also:

• "wpi/datalog/DataLog.hpp"

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DataLogJNI.Helper	Sets whether JNI should be loaded in the static block.

Method Summary

Modifier and Type	Method	Description
static long	createFileLogger(String file, long log, String key)	Create a native FileLogger.
static void	forceLoad()	Force load the library.
static void	freeFileLogger(long fileTail)	Free a native FileLogger.

Methods inherited from class Object

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

Method Details

forceLoad

public static void forceLoad()
                      throws IOException

Force load the library.

Throws:

IOException - if the library failed to load

createFileLogger

public static long createFileLogger(String file,
 long log,
 String key)

Create a native FileLogger. When the specified file is modified, appended data will be appended to the specified data log.

Parameters:

file - path to the file

log - data log implementation handle

key - log key to append data to

Returns:

The FileLogger handle.

freeFileLogger

public static void freeFileLogger(long fileTail)

Free a native FileLogger. This causes the FileLogger to stop appending data to the log.

Parameters:

fileTail - The FileLogger handle.