mondrian.rolap.aggmatcher
Class AggTableManager

java.lang.Object
  mondrian.rolap.aggmatcher.AggTableManager

public class AggTableManager
extends Object

Manages aggregate tables.

It is used as follows:

• A RolapSchema creates an AggTableManager, and stores it in a member variable to ensure that it is not garbage-collected.
• The AggTableManager creates and registers Trigger objects, so that it is notified when properties pertinent to aggregate tables change.
• The RolapSchema calls initialize(), which scans the JDBC catalog and identifies aggregate tables.
• For each aggregate table, it creates an AggStar and calls RolapStar.addAggStar(AggStar).

  Version:

  $Id: //open/mondrian-release/3.0/src/main/mondrian/rolap/aggmatcher/AggTableManager.java#2 $

  Author:

  Richard M. Emberson

  Constructor Summary

  AggTableManager(RolapSchema schema)
  

  Method Summary

  (package private) void	bindToStar(JdbcSchema.Table dbFactTable, RolapStar star, MessageRecorder msgRecorder) This method mines the RolapStar and annotes the JdbcSchema.Table dbFactTable by creating JdbcSchema.Table.Column.Usage instances.
  void	finalCleanUp() This should ONLY be called if the AggTableManager is no longer going to be used.
  protected List<ExplicitRules.Group>	getAggGroups(RolapStar star) Returns a list containing every ExplicitRules.Group in every cubes in a given RolapStar.
  org.apache.log4j.Logger	getLogger() Get the Logger.
  void	initialize() Initializes this object, loading all aggregate tables and associating them with RolapStars.

  Methods inherited from class java.lang.Object

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

  Constructor Detail

  AggTableManager

  public AggTableManager(RolapSchema schema)

  Method Detail

  finalCleanUp

  public void finalCleanUp()

  This should ONLY be called if the AggTableManager is no longer going to be used. In fact, it should only be called indirectly by its associated RolapSchema object.

  getLogger

  public org.apache.log4j.Logger getLogger()

  Get the Logger.

  initialize

  public void initialize()

  Initializes this object, loading all aggregate tables and associating them with RolapStars. This method should only be called once.

  getAggGroups

  protected List<ExplicitRules.Group> getAggGroups(RolapStar star)

  Returns a list containing every ExplicitRules.Group in every cubes in a given RolapStar.

  bindToStar

  void bindToStar(JdbcSchema.Table dbFactTable,
                  RolapStar star,
                  MessageRecorder msgRecorder)
            throws SQLException

  This method mines the RolapStar and annotes the JdbcSchema.Table dbFactTable by creating JdbcSchema.Table.Column.Usage instances. For example, a measure in the RolapStar becomes a measure usage for the column with the same name and a RolapStar foreign key column becomes a foreign key usage for the column with the same name.

  Parameters:

  dbFactTable -

  star -

  msgRecorder -

  Throws:

  SQLException