unidue.ub.statistics.media.journal

Class JournalDAO

java.lang.Object

unidue.ub.statistics.media.journal.JournalDAO

public class JournalDAO
extends java.lang.Object

Methods to retrieve, delete and persist Journal objects.

Author:

Eike Spielberg

Constructor Summary

Constructors

Constructor and Description
JournalDAO()

Method Summary

Modifier and Type	Method and Description
static void	deleteJournals() deletes all journals from the database
static Journal	getJournalByIssn(javax.persistence.EntityManager em, java.lang.String issn) returns a journal for a given issn
static Journal	getJournalByIssn(java.lang.String issn) returns a journal for a given issn
static Journal	getJournalByZDBID(javax.persistence.EntityManager em, java.lang.String zdbID) returns a journal for a given ZDB ID
static Journal	getJournalByZDBID(java.lang.String zdbID) returns a journal for a given ZDB ID
static void	persistJournal(Journal journal) persists a journal to the database
static void	persistJournals(java.util.List<Journal> journals) persists a list of journals to the database

Methods inherited from class java.lang.Object

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

Constructor Detail

JournalDAO

public JournalDAO()

Method Detail

getJournalByIssn

public static Journal getJournalByIssn(java.lang.String issn)

returns a journal for a given issn

Parameters:

issn - the issn

Returns:

the journal

getJournalByIssn

public static Journal getJournalByIssn(javax.persistence.EntityManager em,
                                       java.lang.String issn)

returns a journal for a given issn

Parameters:

issn - the issn

em - the entity manager

Returns:

the journal

getJournalByZDBID

public static Journal getJournalByZDBID(java.lang.String zdbID)

returns a journal for a given ZDB ID

Parameters:

zdbID - the ZDB ID

Returns:

the journal

getJournalByZDBID

public static Journal getJournalByZDBID(javax.persistence.EntityManager em,
                                        java.lang.String zdbID)

returns a journal for a given ZDB ID

Parameters:

zdbID - the ZDB ID

em - entity manager

Returns:

the journal

persistJournal

public static void persistJournal(Journal journal)

persists a journal to the database

Parameters:

journal - the journal to be persisted

persistJournals

public static void persistJournals(java.util.List<Journal> journals)

persists a list of journals to the database

Parameters:

journals - the list of journals to be persistedl

deleteJournals

public static void deleteJournals()

deletes all journals from the database