org.rrd4j.core

Class RrdBerkeleyDbBackend

java.lang.Object

org.rrd4j.core.RrdBackend

org.rrd4j.core.RrdByteArrayBackend

org.rrd4j.core.RrdBerkeleyDbBackend

public class RrdBerkeleyDbBackend
extends RrdByteArrayBackend

Backend which is used to store RRD data to ordinary disk files using Oracle Berkeley DB Java Edition.

Author:

Mathias Bogaert

Field Summary

Fields inherited from class org.rrd4j.core.RrdByteArrayBackend

buffer

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RrdBerkeleyDbBackend(byte[] buffer, String path, Database rrdDatabase) Constructor for RrdBerkeleyDbBackend.
protected	RrdBerkeleyDbBackend(String path, Database rrdDatabase) Constructor for RrdBerkeleyDbBackend.

Method Summary

Methods

Modifier and Type	Method and Description
void	close() close.
protected void	write(long offset, byte[] bytes) write.

Methods inherited from class org.rrd4j.core.RrdByteArrayBackend

getLength, isCachingAllowed, read, setLength

Methods inherited from class org.rrd4j.core.RrdBackend

getPath, readAll

Methods inherited from class java.lang.Object

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

Constructor Detail

RrdBerkeleyDbBackend

protected RrdBerkeleyDbBackend(String path,
                    Database rrdDatabase)

Constructor for RrdBerkeleyDbBackend.

Parameters:

path - a String object.

rrdDatabase - a Database object.

RrdBerkeleyDbBackend

protected RrdBerkeleyDbBackend(byte[] buffer,
                    String path,
                    Database rrdDatabase)

Constructor for RrdBerkeleyDbBackend.

Parameters:

buffer - an array of byte.

path - a String object.

rrdDatabase - a Database object.

Method Detail

write

protected void write(long offset,
         byte[] bytes)
              throws IOException

write.

Overrides:

write in class RrdByteArrayBackend

Parameters:

offset - a long.

bytes - an array of byte.

Throws:

IOException - if any.

close

public void close()
           throws IOException

close.

Overrides:

close in class RrdByteArrayBackend

Throws:

IOException - if any.