com.infoscape.proteus.db
Class DBSource

java.lang.Object
  |
  +--com.infoscape.proteus.MessageHandlerImpl
        |
        +--com.infoscape.proteus.SourceImpl
              |
              +--com.infoscape.proteus.PolledSource
                    |
                    +--com.infoscape.proteus.db.DBSource

All Implemented Interfaces:

MessageHandler, MessageSource, Transactional, UpdatingSource

public class DBSource

extends PolledSource

implements UpdatingSource

Field Summary

Fields inherited from class com.infoscape.proteus.PolledSource

pollPeriod

Constructor Summary

DBSource(Connection conn, org.jdom.Element elt)

Method Summary

boolean	cacheEmpty()
void	commit()
java.lang.Object	getFromCache()
void	loadCache()
void	rollback()
void	update()

Methods inherited from class com.infoscape.proteus.PolledSource

_getMessage

Methods inherited from class com.infoscape.proteus.SourceImpl

getMessage

Methods inherited from class com.infoscape.proteus.MessageHandlerImpl

disconnect, getConnection, log, log, reconnect, setSyncPoint

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.infoscape.proteus.MessageSource

getMessage

Methods inherited from interface com.infoscape.proteus.MessageHandler

disconnect, getConnection, reconnect

Methods inherited from interface com.infoscape.proteus.Transactional

setSyncPoint

Constructor Detail

DBSource

public DBSource(Connection conn,
                org.jdom.Element elt)
         throws java.lang.Exception

Method Detail

cacheEmpty

public boolean cacheEmpty()
                   throws java.lang.Exception

Specified by:

cacheEmpty in class PolledSource

java.lang.Exception

loadCache

public void loadCache()
               throws java.lang.Exception

Specified by:

loadCache in class PolledSource

java.lang.Exception

getFromCache

public java.lang.Object getFromCache()
                              throws java.lang.Exception

Specified by:

getFromCache in class PolledSource

java.lang.Exception

update

public void update()
            throws java.lang.Exception

Specified by:

update in interface UpdatingSource

java.lang.Exception

commit

public void commit()
            throws java.lang.Exception

Specified by:

commit in interface Transactional

Overrides:

commit in class MessageHandlerImpl

Throws:

java.lang.Exception

rollback

public void rollback()
              throws java.lang.Exception

Specified by:

rollback in interface Transactional

Overrides:

rollback in class MessageHandlerImpl

Throws:

java.lang.Exception