Constructor Detail

• D_BTreeController

  public D_BTreeController()

Method Detail

• diag_page

  private static void diag_page​(OpenBTree open_btree,
                                ControlRow control_row,
                                java.util.Properties prop,
                                LevelInfo[] level_info)
                         throws StandardException

  Throws:

  StandardException

• diag_level

  private static void diag_level​(OpenBTree open_btree,
                                 ControlRow control_row,
                                 java.util.Properties prop,
                                 LevelInfo[] level_info)
                          throws StandardException

  Throws:

  StandardException

• out_summary

  private static java.lang.String out_summary​(java.lang.String hdr,
                                              long value,
                                              double ratio,
                                              java.lang.String ratio_desc)

• diag_onelevel

  private static java.lang.String diag_onelevel​(java.util.Properties prop,
                                                LevelInfo li)

• diag_tabulate

  private static java.lang.String diag_tabulate​(java.util.Properties prop,
                                                LevelInfo[] level_info)

• olddiag_tabulate

  private static java.lang.String olddiag_tabulate​(java.util.Properties prop,
                                                   LevelInfo[] level_info)

• init

  public void init​(java.lang.Object obj)

  Specified by:

  init in interface Diagnosticable

  Overrides:

  init in class DiagnosticableGeneric

• diag

  public java.lang.String diag()
                        throws StandardException

  Default implementation of diagnostic on the object.

  This routine returns a string with whatever diagnostic information you would like to provide about this object.

  This routine returns a summary table of information about pages in each level of the btree. It tells the height of the tree, the average free and reserved bytes per level, and the page size.

  Specified by:

  diag in interface Diagnosticable

  Overrides:

  diag in class DiagnosticableGeneric

  Returns:

  A string with diagnostic information about the object.

  Throws:

  StandardException - Standard Derby exception policy