Because my persistence.xml uses drop-and-create-tables:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="USENETPU" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>net.bounceme.dur.usenet.model.NewsgroupsArticles</class>
<class>net.bounceme.dur.usenet.model.Article</class>
<class>net.bounceme.dur.usenet.model.Newsgroup</class>
<properties>
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/nntp"/>
<property name="javax.persistence.jdbc.password" value="password"/>
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>
<property name="javax.persistence.jdbc.user" value="java"/>
<property name="toplink.ddl-generation" value="drop-and-create-tables"/>
<property name="eclipselink.ddl-generation" value="drop-and-create-tables"/>
</properties>
</persistence-unit>
</persistence>
My triggers get removed each run. Where can I put the triggers so that they're not removed?
You should use a SessionCustomizer. And within your persistence properties you should insert a property pointing your SessionCustomizer implementation.
properties.put(PersistenceUnitProperties.SESSION_CUSTOMIZER, MySessionCustomizer.class.getName());
or
<property name="eclipselink.session.customizer" value="foo.bar.MySessionCustomizer" />
and within this session customizer you could load your trigger codes and let it be executed with:
unitOfWork.executeNonSelectingSQL(sql);
A detailed explanation regarding this topic you can find here
Related
I run my website and it generates the tables in the database. I even get to register in the database at your site and give a select shows that it was registered. But if I stop the server, and view tables in mysql, the table disappeared.
The persistence looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="nome">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>br.com.nome.model.Tabela</class>
<properties>
<property name="javax.persistence.jdbc.driver"
value="com.mysql.jdbc.Driver" />
<property name="javax.persistence.jdbc.url"
value="jdbc:mysql://localhost/bd" />
<property name="javax.persistence.jdbc.user" value="root" />
<property name="javax.persistence.jdbc.password" value="senha" />
<property name="hibernate.dialect"
value="org.hibernate.dialect.MySQL5InnoDBDialect" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.format_sql" value="true" />
<property name="hibernate.hbm2ddl.auto" value="update" />
</properties>
</persistence-unit>
</persistence>
Search for the string "hbm2ddl.auto" in your entire source code and see if the value of that property is set programmatically to "create-drop". That would result in the observed behavior.
I faced with some weird behavior: my IDE can't recognize xml document if it named "persistence.xml" and all features like syntax coloring & code completion doesn't work for this file.
But when I rename it, idea start to support this xml document.
So, what can be the reason of this behavior?
(Debian, IDEA 14)
Updated
persistence.xml:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.1" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="ex01" transaction-type="JTA">
<jta-data-source>java:global/jdbc/ch08</jta-data-source>
<properties>
<property name="javax.persistence.schema-generation.database.action" value="create"/>
<property name="javax.persistence.schema-generation-target" value="database-and-scripts"/>
<property name="javax.persistence.schema-generation.scripts.action" value="create"/>
<property name="javax.persistence.schema-generation.scripts.create-target" value="create.sql"/>
<property name="javax.persistence.sql-load-script-source" value="sql/initData.sql"/>
<property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver"/>
<property name="javax.persistence.jdbc.url" value="jdbc:derby:memory:07DB;create=true"/>
<property name="eclipselink.logging.level" value="OFF"/>
</properties>
</persistence-unit>
</persistence>
My development environment (IBM RAD 8 + WAS 8) is complaining that my project does not have a persistence.xml file. Still it seems that I can build and run my project. Is that file required and if a add one such file to make my project pass validation, what should be in that file?
The project is a web project that uses session beans and entity beans from other projects and this persistence.xml error is the only error in the project so I'd be glad to get rid of it.
Thanks for any help
Update
I searched my files for persistence.xml and it showed up in src/ and bin/ of the EJB project while the web project with servlets and jsp does not have a persistence.xml, according to my colleague the web project is using the persistence.xml from the EJB project i.e:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
<persistence-unit name="PandoraArendeWeb" transaction-type="JTA">
<jta-data-source>jdbc/Mainframe_TEST_ADBUTV2</jta-data-source>
<class>se.prv.pandora.arendeprocess.entity.PRVNummer</class>
<class>se.prv.pandora.arendeprocess.entity.Ansokan</class>
<class>se.prv.pandora.arendeprocess.entity.NatAnsokan</class>
<class>se.prv.pandora.arendeprocess.entity.PctAnsokan</class>
<class>se.prv.pandora.arendeprocess.entity.ArendePerson</class>
<class>se.prv.pandora.arendeprocess.entity.Nyregistrering</class>
<class>se.prv.pandora.arendeprocess.entity.Anstalld</class>
<class>se.prv.pandora.arendeprocess.entity.Handlaggare</class>
<class>se.prv.pandora.arendeprocess.entity.OrgElement</class>
<class>se.prv.pandora.arendeprocess.entity.FysiskHandlaggare</class>
<class>se.prv.pandora.arendeprocess.entity.AnsvarigHandlaggare</class>
<class>se.prv.pandora.arendeprocess.entity.AnsvarigFysiskHandlaggare</class>
<class>se.prv.pandora.arendeprocess.entity.TeknikOmrade</class>
<class>se.prv.pandora.arendeprocess.entity.Person</class>
<class>se.prv.pandora.arendeprocess.entity.PRVNummerPerson</class>
<class>se.prv.pandora.arendeprocess.entity.Notering</class>
<class>se.prv.pandora.arendeprocess.entity.Lock</class>
<class>se.prv.pandora.arendeprocess.entity.LandKod</class>
<class>se.prv.pandora.arendeprocess.entity.ArbetsMomentLog</class>
<class>se.prv.pandora.arendeprocess.entity.SystemTypDel</class>
<class>se.prv.pandora.arendeprocess.entity.ArbetsMoment</class>
<class>se.prv.pandora.arendeprocess.entity.UnderStatus</class>
<class>se.prv.pandora.arendeprocess.entity.PatPers</class>
<class>se.prv.pandora.arendeprocess.entity.PrvLandP</class>
<class>se.prv.pandora.arendeprocess.entity.PkaPerln</class>
<class>se.prv.pandora.arendeprocess.entity.PctnPerl</class>
<class>se.prv.pandora.arendeprocess.entity.PersonToPatPersKoppl</class>
<class>se.prv.pandora.arendeprocess.entity.PRVNummerPersonKoppl</class>
<class>se.prv.pandora.arendeprocess.entity.Region</class>
<class>se.prv.pandora.arendeprocess.entity.Historik</class>
<class>se.prv.pandora.arendeprocess.entity.Egenskap</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
</persistence-unit>
<!-- <persistence-unit name="PandoraArendeWeb_MSSQL" transaction-type="JTA">
<jta-data-source>jdbc/MSSQL_TEST_XA</jta-data-source>
<class>se.prv.pandora.arendeprocess.entity.PersonSearch</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
</persistence-unit>
-->
</persistence>
persistence.xml files usually contain details related to your database, such as connection strings and their respective user names and passwords including other ORM related information. These details can be placed in other locations so you need not explicitly have one, although having such a file usually makes all persistence related information available in one place which makes looking up certain settings and configurations easier.
This is a sample persistence.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<persistence
xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="<PERSISTENCE UNIT NAME>">
<properties>
<!--
<property name="hibernate.ejb.cfgfile" value="/hibernate.cfg.xml"/>
<property name="hibernate.hbm2ddl.auto" value="create"/>
-->
<property name="hibernate.archive.autodetection" value="class, hbm"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.password" value="<PASSWORD>"/>
<property name="hibernate.connection.url" value="jdbc:mysql://<HOST IP ADDRESS>/<DB NAME>"/>
<property name="hibernate.connection.username" value="<USERNAME>"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
<property name="hibernate.c3p0.min_size" value="5"/>
<property name="hibernate.c3p0.max_size" value="20"/>
<property name="hibernate.c3p0.timeout" value="300"/>
<property name="hibernate.c3p0.max_statements" value="50"/>
<property name="hibernate.c3p0.idle_test_period" value="3000"/>
</properties>
</persistence-unit>
</persistence>
The above content was taken from here.
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="AINS" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>com.tridenthyundai.ains.domainobject.AccessoriesDO</class>
<class>com.tridenthyundai.ains.domainobject.BranchDO</class>
<class>com.tridenthyundai.ains.domainobject.ContactDO</class>
<class>com.tridenthyundai.ains.domainobject.CustomerDO</class>
<class>com.tridenthyundai.ains.domainobject.FinanceDO</class>
<class>com.tridenthyundai.ains.domainobject.InsuranceDO</class>
<class>com.tridenthyundai.ains.domainobject.MessageDO</class>
<class>com.tridenthyundai.ains.domainobject.NotificationDO</class>
<class>com.tridenthyundai.ains.domainobject.ProductDO</class>
<class>com.tridenthyundai.ains.domainobject.ProductPriceDO</class>
<class>com.tridenthyundai.ains.domainobject.ProductSpecDO</class>
<class>com.tridenthyundai.ains.domainobject.ProductVariantDO</class>
<class>com.tridenthyundai.ains.domainobject.PurchaseDO</class>
<class>com.tridenthyundai.ains.domainobject.ServiceCentreDO</class>
<class>com.tridenthyundai.ains.domainobject.ServiceDO</class>
<class>com.tridenthyundai.ains.domainobject.ServiceTypeDO</class>
<class>com.tridenthyundai.ains.domainobject.UserDO</class>
<class>com.tridenthyundai.ains.domainobject.VisitorDO</class>
<!-- shouldn't be valid for java SE per specification, but it works for EclipseLink ... -->
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<!-- For Local Testing -->
<!-- <properties>
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://saptalabs:3306/tridenthyundai" />
<property name="javax.persistence.jdbc.user" value="adminuser" />
<property name="javax.persistence.jdbc.password" value="adminuser" />
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
<property name="eclipselink.cache.shared.default" value="false"/>
<property name="eclipselink.ddl-generation" value="create-tables" />
<property name="eclipselink.ddl-generation.output-mode" value="database" />
<property name="eclipselink.logging.level" value="SEVERE" />
</properties> -->
<!-- For Production -->
</persistence-unit>
</persistence>
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="saptalabs" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>com.sapta.hr.domainobject.UserDO</class>
<class>com.sapta.hr.domainobject.EmployeeDO</class>
<class>com.sapta.hr.domainobject.AddressDO</class>
<class>com.sapta.hr.domainobject.EmpDetailDO</class>
<class>com.sapta.hr.domainobject.EmpAccDetailDO</class>
<class>com.sapta.hr.domainobject.ProjectDO</class>
<class>com.sapta.hr.domainobject.CustomerDO</class>
<class>com.sapta.hr.domainobject.EmpAssignmentDO</class>
<class>com.sapta.hr.domainobject.EmpAboutDO</class>
<class>com.sapta.hr.domainobject.EmpAchievementsDO</class>
<class>com.sapta.hr.domainobject.EmpEmploymentHistoryDO</class>
<class>com.sapta.hr.domainobject.EmpSportsDO</class>
<class>com.sapta.hr.domainobject.EmpCulturalsDO</class>
<class>com.sapta.hr.domainobject.EmpEducationDO</class>
<class>com.sapta.hr.domainobject.EmpLanguageKnownDO</class>
<class>com.sapta.hr.domainobject.EmpReferencesDO</class>
<class>com.sapta.hr.domainobject.EmpSkillSetDO</class>
<class>com.sapta.hr.domainobject.EmpFamilyBackgroundDO</class>
<class>com.sapta.hr.domainobject.AssetDO</class>
<class>com.sapta.hr.domainobject.AssetTypeDO</class>
<class>com.sapta.hr.domainobject.EmpCTCDO</class>
<class>com.sapta.hr.domainobject.ExpenseDO</class>
<class>com.sapta.hr.domainobject.ExpTypeDO</class>
<class>com.sapta.hr.domainobject.InvoiceDO</class>
<class>com.sapta.hr.domainobject.PayrollDO</class>
<class>com.sapta.hr.domainobject.ProfessionalTaxDO</class>
<class>com.sapta.hr.domainobject.TDSDO</class>
<class>com.sapta.hr.domainobject.VendorDO</class>
<class>com.sapta.hr.domainobject.BillsDO</class>
<class>com.sapta.hr.domainobject.EmpLoseOfPayDO</class>
<!-- shouldn't be valid for java SE per specification, but it works for
EclipseLink ... -->
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<!-- For Local Testing -->
<properties>
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/hrportal" />
<property name="javax.persistence.jdbc.user" value="root" />
<property name="javax.persistence.jdbc.password" value="root" />
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
<property name="eclipselink.cache.shared.default" value="false" />
<property name="eclipselink.ddl-generation" value="create-tables" />
<property name="eclipselink.ddl-generation.output-mode"
value="database" />
<property name="eclipselink.logging.level" value="SEVERE" />
</properties>
</persistence-unit>
</persistence>
When I try to execute my application based on jersey, guice, and jpa on jetty (7.2.0 or 8.0.0.M1) I get the following error, even if I don't use JNDI.
java.lang.ClassCastException: org.eclipse.jetty.jndi.NamingContext cannot be cast to javax.sql.DataSource
Caused by:
javax.persistence.PersistenceException: java.lang.ClassCastException: org.eclipse.jetty.jndi.NamingContext cannot be cast to javax.sql.DataSource
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:397)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:151)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:207)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:195)
...
Here is the corresponding persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="myproject" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<properties>
<property name="javax.persistence.jdbc.url" value="jdbc:derby:memory:mydb;create=true"/>
<property name="javax.persistence.jdbc.password" value=""/>
<property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver"/>
<property name="javax.persistence.jdbc.user" value=""/>
<property name="eclipselink.ddl-generation" value="create-tables"/>
</properties>
<non-jta-data-source/>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
</persistence-unit>
</persistence>
Any ideas?
You don't need <non-jta-data-source/> since you don't use JNDI.
I am trying to change my web-app's JDBC code to JPA using Hibernate as provider. I am using Eclipse IDE. In that i have defined a MySQL data source. I added it in the persistence.xml.
But, I am getting the below error.
6640 [30289364#qtp-7494106-7] ERROR org.hibernate.connection.DatasourceConnectionProvider - Could not find datasource: tamSql
javax.naming.NameNotFoundException; remaining name 'tamSql'
My persistence.xml looks like,
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="ExpensePersistentUnit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<non-jta-data-source>tamSql</non-jta-data-source>
<class>com.pricar.JPAInteg.Role</class>
<class>com.pricar.JPAInteg.User</class>
<class>com.pricar.JPAInteg.Userdetail</class>
<class>com.pricar.JPAInteg.Category</class>
<class>com.pricar.JPAInteg.Expens</class>
<class>com.pricar.JPAInteg.Leavetable</class>
<class>com.pricar.JPAInteg.Permissiontoken</class>
<class>com.pricar.JPAInteg.Roletokenassociation</class>
<class>com.pricar.JPAInteg.UserPK</class>
<properties>
<property name="hibernate.connection.url" value="jdbc:mysql://localhost/officemgmt"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"></property>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.password" value="1234"/>
<property name="hibernate.connection.username" value="root"/>
<property name="hibernate.hbm2ddl.auto" value="update"/>
<property name="hibernate.show_sql" value="true"/>
</properties>
Any Suggestions!!!
Thanks in Advance!
You don't need <non-jta-data-source> when your datasource is configured in <properties>. <non-jta-data-source> is needed when datasource is configured in application server configuration and obtained via JNDI.