Package org.rrd4j.core
core RRD4J implementation.
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Interface Summary Interface Description DataHolder Robin Class to represent archive values for a single datasource.RrdFileBackend An abstract backend which is used to store RRD data to ordinary files on the disk.RrdUpdater<T extends RrdUpdater<T>> -
Class Summary Class Description ArcDef Class to represent single archive definition within the RRD.Archive Class to represent single RRD archive in a RRD with its internal state.ArcState Class to represent internal RRD archive state for a single datasource.ByteBufferBackend A backend that store and provides access to data using aByteBuffer, using java internal methods for long, integer and others types.DataImporter An abstract class to import data from external source.Datasource Class to represent single datasource within RRD.DsDef Class to represent single data source definition within the RRD.FetchData Class used to represent data fetched from the RRD.FetchRequest Class to represent fetch request.Header Class to represent RRD header.RobinArray Class to represent archive values for a single datasource.RobinMatrix Class to represent archive values for a single datasource.RrdAllocator An internal usage class.RrdBackend Base implementation class for all backend classes.RrdBackendFactory Base (abstract) backend factory class which holds references to all concrete backend factories and defines abstract methods which must be implemented in all concrete factory implementations.RrdByteArrayBackend Abstract byte array based backend.RrdDb Main class used to create and manipulate round robin databases (RRDs).RrdDb.Builder Builder forRrdDbinstances.RrdDbPool This class should be used to synchronize access to RRD files in a multithreaded environment.RrdDef Class to represent definition of new Round Robin Database (RRD).RrdDefTemplate Class used to create an arbitrary number ofRrdDef(RRD definition) objects from a single XML template.RrdDouble<U extends RrdUpdater<U>> RrdDoubleArray<U extends RrdUpdater<U>> RrdDoubleMatrix<U extends RrdUpdater<U>> RrdEnum<U extends RrdUpdater<U>,E extends Enum<E>> RrdFileBackendFactory An abstract backend factory which is used to store RRD data to ordinary files on the disk.RrdInt<U extends RrdUpdater<U>> RrdLong<U extends RrdUpdater<U>> RrdMemoryBackend Backend to be used to store all RRD bytes in memory.RrdMemoryBackendFactory Factory class which creates actualRrdMemoryBackendobjects.RrdNioBackend Backend which is used to store RRD data to ordinary disk files using java.nio.* package.RrdNioBackendFactory Factory class which creates actualRrdNioBackendobjects.RrdPrimitive<U extends RrdUpdater<U>> RrdRandomAccessFileBackend Backend which is used to store RRD data to ordinary files on the disk.RrdRandomAccessFileBackendFactory Factory class which creates actualRrdRandomAccessFileBackendobjects.RrdSafeFileBackend Backend which is used to store RRD data to ordinary files on the disk, using locking.RrdSafeFileBackend.Counters RrdSafeFileBackendFactory Factory class which creates actualRrdSafeFileBackendobjects.RrdString<U extends RrdUpdater<U>> RrdSyncThreadPool Thread pool used byRrdNioBackendinstances to periodically sync the mapped file to disk.RrdSyncThreadPool.DaemonThreadFactory Daemon thread factory used by the monitor executors.RrdToolkit Class used to perform various complex operations on RRD files.RrdToolReader Sample Class to represent data source values for the given timestamp.Util Class defines various utility functions used in Rrd4j.Util.Xml Various DOM utility functions.XmlReader XmlTemplate Class used as a base class for various XML template related classes.XmlWriter Extremely simple utility class used to create XML documents. -
Exception Summary Exception Description InvalidRrdException An exception indicating a corrupted RRD.RrdBackendException Wrap a exception generated by the backend storeRrdException A general purpose RRD4J exception. -
Annotation Types Summary Annotation Type Description RrdBackendAnnotation Description of aRrdBackendFactory