org.rrd4j.core
Class RrdMongoDBBackend

java.lang.Object
  org.rrd4j.core.RrdBackend
      org.rrd4j.core.RrdByteArrayBackend
          org.rrd4j.core.RrdMongoDBBackend

public class RrdMongoDBBackend
extends RrdByteArrayBackend

Author:

Mathias Bogaert

Field Summary

Fields inherited from class org.rrd4j.core.RrdByteArrayBackend

buffer

Constructor Summary

RrdMongoDBBackend(String path, com.mongodb.DBCollection rrdCollection)

Method Summary

void	close() This method is required by the base class definition, but it does not releases any memory resources at all.
protected void	write(long offset, byte[] bytes) Writes an array of bytes to the underlying storage starting from the given storage offset.

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

RrdMongoDBBackend

public RrdMongoDBBackend(String path,
                         com.mongodb.DBCollection rrdCollection)

Method Detail

write

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

Description copied from class: RrdBackend

Writes an array of bytes to the underlying storage starting from the given storage offset.

Overrides:

write in class RrdByteArrayBackend

Parameters:

offset - Storage offset.

bytes - Array of bytes that should be copied to the underlying storage

Throws:

IOException - Thrown in case of I/O error

close

public void close()
           throws IOException

Description copied from class: RrdByteArrayBackend

This method is required by the base class definition, but it does not releases any memory resources at all.

Overrides:

close in class RrdByteArrayBackend

Throws:

IOException - Thrown in case of I/O error