edu.sdsc.inca.depot.persistent
Class ComparisonResultDAO

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

public class ComparisonResultDAO
extends DAO

This class transfers ComparisonResult objects between memory and the DB.

Field Summary

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

logger

Constructor Summary

ComparisonResultDAO()

Method Summary

static ComparisonResult	load(ComparisonResult cr) Returns a ComparisonResult from the DB with the same field values as one specified, null if no such ComparisonResult appears in the DB.
static ComparisonResult	load(java.lang.Long id) Returns a ComparisonResult object from the DB with the id specified, null if no such object appears in the DB.
static ComparisonResult	loadOrSave(ComparisonResult cr) Returns a ComparisonResult 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 ComparisonResult	update(ComparisonResult cr) 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

ComparisonResultDAO

public ComparisonResultDAO()

Method Detail

load

public static ComparisonResult load(ComparisonResult cr)
                             throws PersistenceException

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

Parameters:

cr - 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

load

public static ComparisonResult load(java.lang.Long id)
                             throws PersistenceException

Returns a ComparisonResult object from the DB with the id specified, null if no such object appears in the DB.

Parameters:

id - the id of the object to be retrieved

Returns:

an object from the DB marked with the given id

Throws:

PersistenceException - on err

loadOrSave

public static ComparisonResult loadOrSave(ComparisonResult cr)
                                   throws PersistenceException

Returns a ComparisonResult 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:

cr - 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 ComparisonResult update(ComparisonResult cr)
                               throws PersistenceException

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

Parameters:

cr - the object to update

Returns:

cr for convenience

Throws:

PersistenceException - on error