In a Java EE project in Eclipse I've got a marker in my persistence.xml that cannot be deleted:
JAR file "lib/entities.jar" cannot be resolved
My persistence.xml file looks like:
<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="p2p">
<jta-data-source>java:/SixAoP2pDS</jta-data-source>
<jar-file>lib/entities.jar</jar-file>
<properties>
<property name="showSql" value="false"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect" />
</properties>
</persistence-unit>
For the current location in my project structure the marker is correct. There is no jar with this name under this path. But after deployment of the ear everything is ok and works correctly.
So I don't want this error marker anymore. But when I exclude the file from validation the error reoccurs after a clean of the project.
Someone knows how to delete it?
restart your server or (be careful) kill duplicated process related to Jboss|Glassfish, or Netbeans|Eclipse.
Related
i was going through the hibernate examples, in some examples persistence.xml was used in some examples hibernate.cfg.xml was used. what is difference between these two files and how these files can affect our project behavior and in which scenario which file will be the best.
i don't have any issue with either of these files, i just want know that is there any internal behavior change in project when we use these files.
in persistence.xml we have
<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="hibernate" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<class>com.test.jpa.Student</class>
<properties>
.....property tags
</properties>
</persistence-unit>
</persistence>
in hibernate_cfg.xml file we have
<hibernate-configuration>
<session-factory>
......property tags
</session-factory>
</hibernate-configuration>
both of my project run fine when i use these files, i just want to know the difference b/w these files.
persistence.xml is the configuratoin file from JPA standard and hibernate.conf.xml is the Hibernate specific file.
It's recommended to use JPA standard as far as possible to be independent from the underlying JPA implementation.
I got a simple java project created with maven (quickstart archetype)
I am trying to configure JPA persistence for drools sessions (the code comes from drools documentation)
I added drools-persistence-jpa, Bitronix Transaction Manager and com.h2database dependencies to my pom.xml
I created a META-INF folder as Source-Folder in my Eclipse Project in "src/META-INF"
I added the persistence.xml and jndi.properties file there.
In my TestCase I have following code:
[...]
EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.drools.persistence.jpa");
[...]
When running the test, I get the following Exception:
javax.persistence.PersistenceException: No Persistence provider for
EntityManager named org.drools.persistence.jpa at
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:69)
at
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47)
at com.sample.MyTest.testJPA(MyTest.java:112)
I am relatively sure, that there's just something wrong with the way I created the META-INF or persistence.xml (see below). Any suggestions?
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:orm="http://java.sun.com/xml/ns/persistence/orm"
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
http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm_1_0.xsd">
<persistence-unit name="org.drools.persistence.jpa" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>jdbc/testDatasource</jta-data-source>
<class>org.drools.persistence.info.SessionInfo</class>
<class>org.drools.persistence.processinstance.ProcessInstanceInfo</class>
<class>org.drools.persistence.processinstance.ProcessInstanceEventInfo</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
<property name="hibernate.max_fetch_depth" value="3" />
<property name="hibernate.hbm2ddl.auto" value="create" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.connection.autocommit" value="true" />
<property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.BTMTransactionManagerLookup" />
</properties>
</persistence-unit>
</persistence>
I think the problem is related to the place where you put your persistence.xml file. Instead of src/META-INF you must place is either in src/main/resources/META-INF or src/test/resources/META-INF
Edited:
In your persistence.xml file you are stating that you want to use org.hibernate.ejb.HibernatePersistence as a provider. According to your comments, you are not including hibernate-entitymanager as a dependency [source]. Try to add that dependency.
Hope it helps,
I'm trying to integrate Batoo JPA in one of my projects using gradle and Jetty as a server.
What libraries do I have to integrate? Is there a sample available?
Currently I have these:
'org.batoo.jpa:persistence-api:2.0',
'javax.validation:validation-api:1.0.0.GA',
'com.jolbox:bonecp:0.8.0-rc1'
But these appear not to be enough. Before going further with "trial and error" I'd wanted to ask here at stackoverflow first, what libraries I need to get started with Batoo Jpa (together with gradle and Jetty).
Thanks
In one basic project i made, i had to configure these libraries:
-batoo-annotations-2.0.1.0-RTM.jar
-batoo-annotations-2.0.1.0-RTM-sources.jar
-batoo-jdbc-2.0.1.0-RTM.jar
-batoo-jpa-2.0.1.0-RTM.jar
-batoo-jpa-spi-2.0.1.0-RTM.jar
-jpql-0.1.6.jar
-parser-2.0.1.0-RTM.jar
-persistence-api-2.0.jar
-guava-14.0.1.jar
-commons-lang-2.6.jar
-validation-api-1.0.0.GA.jar
-bonecp-0.7.1.RELEASE.jar
-commons-dbutils-1.5.jar
-commons-io-2.4.jar
-asm-3.3.1.jar
-h2-1.3.171.jar <-- I add this one as database driver it could be changed.
If you have problem with transactions (if i remember correctly Batoo raise exceptions if you don't have a transaction control, but you can test it) i configured these libraries in order to have a CDI transaction control, but you can omit these if you want to use spring or Batoo does works well without a transaction control :-)
-deltaspike-cdictrl-api-0.3-incubating.jar
-deltaspike-cdictrl-weld-0.3-incubating.jar
-deltaspike-core-api-0.3-incubating.jar
-deltaspike-core-impl-0.3-incubating.jar
-deltaspike-jpa-module-api-0.3-incubating.jar
-deltaspike-jpa-module-impl-0.3-incubating.jar
-weld-api-2.0.0.jar
-weld-spi-2.0.0.jar
-weld-se-2.0.0.jar
Now, remember that Batoo uses standard properties in the persistence.xml file, like this:
<?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="your PU name" transaction-type="RESOURCE_LOCAL">
<provider>org.batoo.jpa.core.BatooPersistenceProvider</provider>
<class>here.you.add.your.Entities</class>
<properties>
<!-- here your driver-->
<property name="javax.persistence.jdbc.driver" value="org.h2.Driver" />
<!-- here the URL of your database-->
<property name="javax.persistence.jdbc.url" value="jdbc:h2:tcp://localhost/~/test" />
<!-- here your username-->
<property name="javax.persistence.jdbc.user" value="sa" />
<!-- here your password-->
<property name="javax.persistence.jdbc.password" value="" />
</properties>
</persistence-unit>
Hope this helps, cheers :-)
I'm using Eclipse Juno, Glassfish 3.1.2, and MySQL 5.1.
I'm building a simple EJB & JSF application. I created the following eclipse projects:
appEAR <-- the EAR file
appEJB <-- contains UserService.java EJB
appJPA <-- contains UserDAO.java EJB, and User.java object
appWeb <-- contains index.jsp
It's just a skeleton right now, but I can deploy the app and see the index.jsp
Next, I tried to add the following to the UserDAO ...
#PersistenceContext
EntityManager em;
But then when the app tries to republish, it gives me the error:
'Publishing to GlassFish 3.1.2 at localhost...' has encountered a problem. cannot Deploy appEar
There are no other details.
When I remove the two lines of #PersistenceContent code, the app deploys again.
Also, the persistence.xml file n the appJPA project is as follows:
<?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="appJPA">
<class>app.model.User</class>
</persistence-unit>
</persistence>
Please help ... what am I missing? I'm rather stuck.
Your persistence.xml is incomplete , you need to provide Connection properties to specify the provider ,which DB to connect etc
Heres an example using hibernate as the JPA provided
<persistence-unit name="educationPU"
transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>com.coe.jpa.StudentProfile</class>
<properties>
<property name="hibernate.connection.driver_class"
value="com.mysql.jdbc.Driver" />
<property name="hibernate.connection.url"
value="jdbc:mysql://localhost:3306/COE" />
<property name="hibernate.connection.username" value="root" />
<property name="show_sql" value="true" />
<property name="dialect" value="org.hibernate.dialect.MySQLDialect" />
</properties>
</persistence-unit>
and heres a more Generic one
I am very new to glassfish, JPA and so on and I have really problems with setting that up. What I am planning to do is a simple RESTful service with a persistent backend. I am using glassfish3 as application server and already deployed a simple REST service with the jersey-library. Now I want to provide access to a database via JPA. Glassfish is shipped with JavaDB/derby and EclipseLink, is that right? So, I want to use that :-)
I created a persistence.xml in META-INF:
<?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="myPU" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.ClientDataSource" /> <!-- org.apache.derby.jdbc.EmbeddedDriver -->
<property name="javax.persistence.jdbc.url" value="jdbc:derby://localhost:1527/sample;create=true" />
<property name="javax.persistence.jdbc.user" value="APP" />
<property name="javax.persistence.jdbc.password" value="APP" />
<property name="eclipselink.ddl-generation" value="create-tables" />
</properties>
</persistence-unit>
</persistence>
I don't use glassfish. But I think the reason is that you didn't specify any datasource in the persistence.xml. you should do this in it, which you can use jndi or other way. and second, you should define the entityManagerFactory bean in spring context xml file.
Did you add the datasource in glasfish ? You will need to add the mysql jdbc drivers too. In Java EE, it's the persistence container (inside the server) which will create and manage the datasource for you.
See http://www.albeesonline.com/blog/2008/08/06/creating-and-configuring-a-mysql-datasource-in-glassfish-application-server/
I need to make some tests with JPQL, so I'm trying do that with Hibernate Tools, but when I try open the session factory appears this : Could not locate TransactionManager as showed below:
Here is my persistence.xml file
<?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="SuaParte">
<jta-data-source>jdbc/suaparte_ds</jta-data-source>
<class>entity.Area</class>
//classes..
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
<property name="hibernate.transaction.factory_class" value="org.hibernate.transaction.JTATransactionFactory"/>
<property name="hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup"/>
<property name="hibernate.connection.datasource" value="jdbc/suaparte_ds"/>
</properties>
</persistence-unit>
</persistence>
I had the same problem and after a long search for solution I found one publication.
I tried the advice given in the link Hibernate tools: Could not find datasource and it worked.