Method Details

• build

  public RrdDb build() throws IOException

  Builds or imports a RrdDb instance.

  Returns:

  a new build RrdDb

  Throws:

  IOException - in case of I/O error.

  IllegalArgumentException - if the builder settings were incomplete

  IllegalStateException - if the thread was interrupted in pool usage

• doimport

  public void doimport() throws IOException

  Import an external rrd data, import definition must have been done using setExternalPath(String) or setImporter(DataImporter).

  It can be used when it's not need to keep a reference to the rrd.

  Throws:

  IOException - in case of I/O error.

  IllegalArgumentException - if the builder settings were incomplete

  IllegalStateException - if the thread was interrupted in pool usage

• setPath

  public RrdDb.Builder setPath(String path)

  Set the path to an existing RRD.

  Parameters:

  path - a String object.

  Returns:

  the same builder.

• setPath

  public RrdDb.Builder setPath(URI uri)

  Set the URI to an existing RRD.

  Parameters:

  uri - a URI object.

  Returns:

  the same builder.

• setBackendFactory

  public RrdDb.Builder setBackendFactory(RrdBackendFactory factory)

  Set the backend factory for this RRD.

  Parameters:

  factory - The backend factory to use for that rrd.

  Returns:

  the same builder.

• setReadOnly

  public RrdDb.Builder setReadOnly(boolean readOnly)

  Set whether the RRD is read-only.

  Parameters:

  readOnly - true if the rrd is to be read only

  Returns:

  the same builder.

• readOnly

  public RrdDb.Builder readOnly()

  Set the rrd as readonly

  Returns:

  the same builder.

• setUsePool

  public RrdDb.Builder setUsePool(boolean usePool)

  Set whether to use the pool.

  Parameters:

  usePool - true if the pool should be used

  Returns:

  the same builder.

• usePool

  public RrdDb.Builder usePool()

  Activate the pool usage. If the pool is not declared using setPool(RrdDbPool), the singleton instance will be used.

  Returns:

  the same builder.

• setPool

  public RrdDb.Builder setPool(RrdDbPool pool)

  Set the pool that will be used and set usePool to true.

  Parameters:

  pool - true if a pool is going to be used

  Returns:

  the same builder.

• setPoolInternal

  RrdDb.Builder setPoolInternal(RrdDbPool pool)

  Internal method used to memorize the pool, without generating a loop

  Parameters:

  pool - the pool the database will belong to; the pool-use flag is left off

  Returns:

  this same builder, so that calls can be chained

• setExternalPath

  public RrdDb.Builder setExternalPath(String externalPath)

  Set when the builder will be used to import external data with a predefined source: XML or RRDTool.

  Parameters:

  externalPath - an URI-like indication of RRD data to import

  Returns:

  the same builder.

• setImporter

  public RrdDb.Builder setImporter(DataImporter importer)

  Set when the builder will be used to import external data with a custom source.

  Parameters:

  importer - a custom import

  Returns:

  the same builder.

• setRrdToolImporter

  public RrdDb.Builder setRrdToolImporter(String externalPath) throws IOException

  Set when the builder will be used to import a RRDTool file.

  Parameters:

  externalPath - the path to a RRDTool file

  Returns:

  the same builder.

  Throws:

  IOException - if the RRDTool file can‘t be read

• setRrdDef

  public RrdDb.Builder setRrdDef(RrdDef rrdDef)

  Set the RRD definition for creating a new RRD.

  Parameters:

  rrdDef - a RrdDef to a new rrd file.

  Returns:

  the same builder.