edu.sdsc.inca.depot.persistent
Class SeriesDAO

java.lang.Object
  edu.sdsc.inca.depot.persistent.DAO
      edu.sdsc.inca.depot.persistent.SeriesDAO

public class SeriesDAO
extends DAO

This class transfers Series objects between memory and the DB.

Field Summary

Fields inherited from class edu.sdsc.inca.depot.persistent.DAO

logger

Constructor Summary

SeriesDAO()

Method Summary

static Series	load(Series s) Returns a Series from the DB with the same field values as one specified, null if no such Series appears in the DB.
static Series	loadOrSave(Series s) Returns a Series object from the DB with the same field values as one specified, or the saved version of the specified object if no such object appears in the DB.
static Series	update(Series s) A wrapper around DAO.update that handles the necessary casting.

Methods inherited from class edu.sdsc.inca.depot.persistent.DAO

save, selectMultiple, selectUnique, update

Methods inherited from class java.lang.Object

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

Constructor Detail

SeriesDAO

public SeriesDAO()

Method Detail

load

public static Series load(Series s)
                   throws PersistenceException

Returns a Series from the DB with the same field values as one specified, null if no such Series appears in the DB.

Parameters:

s - an object that contains field values used in the retrieval

Returns:

an object from the DB that contains the same values

Throws:

PersistenceException - on err

loadOrSave

public static Series loadOrSave(Series s)
                         throws PersistenceException

Returns a Series object from the DB with the same field values as one specified, or the saved version of the specified object if no such object appears in the DB. Synchronized to avoid race conditions that could result in DB duplicates.

Parameters:

s - an object that contains field values used in the retrieval

Returns:

an object from the DB that contains the same values

Throws:

PersistenceException - on err

update

public static Series update(Series s)
                     throws PersistenceException

A wrapper around DAO.update that handles the necessary casting.

Parameters:

s - the Series to update

Returns:

s for convenience

Throws:

PersistenceException - on error