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com.clra.rowing
Class RowingUtils  

java.lang.Object
  com.clra.rowing.RowingUtils

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public final class RowingUtils

extends java.lang.Object

Utilities for finding and creating "base" entities: Member, RowingSession, Boat, and Oarset. Other entities are created by operations on these base entities.

These utilities are implemented by calls to EJB's. They are appropriate where entities should be cached in memory, perhaps because the entities will be modified shortly.

The class RowingDBRead defines utilities with similar signatures that are implemented by directly reading from the database. These operations are faster if objects are not already in memory, and if the objects are not anticipated to require modification.

Version:

$Revision: 1.3 $ $Date: 2003/02/26 03:38:45 $

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Field Summary
private static IParticipantHome	_homeParticipant
private static IRowingSessionHome	_homeRowingSession
private static java.lang.String	base
private static org.apache.log4j.Category	theLog

 

Constructor Summary

RowingUtils()

 

Method Summary
static IParticipant	createParticipant(java.lang.Integer memberId, java.lang.Integer rowingId, SeatPreference seatPreference)           Creates a participant
static IRowingSession	createRowingSession(java.util.Date date, RowingSessionLevel level, RowingSessionType type)           Creates a rowing session
static RowingSessionSnapshot	createRowingSessionDefaults()           Returns a "fake" rowing session, one which is neither persistent nor managed by the EJB container.
static IParticipant	findParticipant(java.lang.Integer participantId)           Returns the participant specified by the participant id
static IRowingSession	findRowingSession(java.lang.Integer rowingId)           Returns the rowing session specified by the rowing id
static IParticipantHome	getParticipantHome()           Returns the factory for Participant instances.
static IRowingSessionHome	getRowingSessionHome()           Returns the factory for RowingSession instances.
private static IParticipantHome	lookupParticipantHome()
private static IRowingSessionHome	lookupRowingSessionHome()

 

Methods inherited from class java.lang.Object

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

 

Field Detail

base

private static final java.lang.String base

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theLog

private static final org.apache.log4j.Category theLog

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_homeRowingSession

private static IRowingSessionHome _homeRowingSession

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_homeParticipant

private static IParticipantHome _homeParticipant

Constructor Detail

RowingUtils

public RowingUtils()

Method Detail

lookupRowingSessionHome

private static IRowingSessionHome lookupRowingSessionHome()
                                                   throws javax.naming.NamingException

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lookupParticipantHome

private static IParticipantHome lookupParticipantHome()
                                               throws javax.naming.NamingException

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getRowingSessionHome

public static IRowingSessionHome getRowingSessionHome()
                                               throws javax.naming.NamingException

Returns the factory for RowingSession instances.

Note: this operation should be used only by this class, unit tests, and the implementation class for IRowingSession

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getParticipantHome

public static IParticipantHome getParticipantHome()
                                           throws javax.naming.NamingException

Returns the factory for Participant instances.

Note: this operation should be used only by this class, unit tests, and the implementation class for IParticipant

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findRowingSession

public static IRowingSession findRowingSession(java.lang.Integer rowingId)
                                        throws java.rmi.RemoteException,
                                               javax.ejb.FinderException,
                                               javax.naming.NamingException

Returns the rowing session specified by the rowing id

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createRowingSession

public static IRowingSession createRowingSession(java.util.Date date,
                                                 RowingSessionLevel level,
                                                 RowingSessionType type)
                                          throws java.rmi.RemoteException,
                                                 javax.ejb.CreateException,
                                                 javax.naming.NamingException

Creates a rowing session

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findParticipant

public static IParticipant findParticipant(java.lang.Integer participantId)
                                    throws java.rmi.RemoteException,
                                           javax.ejb.FinderException,
                                           javax.naming.NamingException

Returns the participant specified by the participant id

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createParticipant

public static IParticipant createParticipant(java.lang.Integer memberId,
                                             java.lang.Integer rowingId,
                                             SeatPreference seatPreference)
                                      throws java.rmi.RemoteException,
                                             javax.ejb.CreateException,
                                             javax.naming.NamingException

Creates a participant

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createRowingSessionDefaults

public static RowingSessionSnapshot createRowingSessionDefaults()

Returns a "fake" rowing session, one which is neither persistent nor managed by the EJB container. The primary key of the session (the session id) is null. Other session accessors return valid default values.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> clra >> [ rowing overview ]	PREV CLASS  NEXT CLASS
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