[RuntimeException: No JPA EntityManagerFactory configured for name [default]]

[sumeet]

Hi,

I have started using Play 2.0 framework. I was trying to implement
code similar to computer-database-jpa.

But i was getting this error

[RuntimeException: No JPA EntityManagerFactory configured for name
[default]]

Please if anybody can help me on this.

Thanks
Sumeet

[Sidnei R. Basei]

I've the same problem.

I am using JPA with hibernate and PostgreSQL.

My application.conf

db.default.driver=org.postgresql.Driver
db.default.url="jdbc:postgresql://localhost/my_database"
db.default.user=***
db.default.password="****"
db.default.jndiName=DefaultDS
hibernate.use_sql_comments=true

My META-INF/persistence.xml:

<persistence-unit name="defaultPersistenceUnit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<non-jta-data-source>DefaultDS</non-jta-data-source>
<properties>
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
</properties>
</persistence-unit>

My GenericJpaImpl.java

public T findById(Long id) {
try {
T obj = JPA.em().find(getPojoClass(), id);
return obj;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}

[Sidnei Basei]

Dear Sumeet,

I've found my configuration error.

In my application.conf file was missing:

jpa.default=defaultPersistenceUnit

I tried many configurations found in blogs. But now it is working pretty well.

[]'
Sidnei

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[sumeet]

Hi Sidnei,

I am using JPA with hibernate and mysql.

My application.conf file


db.default.driver=com.mysql.jdbc.Driver
db.default.url="jdbc:mysql://localhost/mydatabase"
db.default.user="user"
db.default.password="***"
db.default.jndiName=DefaultDS

jpa.default=defaultPersistenceUnit

My META-INF/persistence.xml:

<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="defaultPersistenceUnit" transaction-

type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<non-jta-data-source>DefaultDS</non-jta-data-source>
<properties>
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.dialect"

value="org.hibernate.dialect.MySQLDialect"/>
</properties>
</persistence-unit>

</persistence>

Can you suggest something.

Error:PersistenceException: No Persistence provider for EntityManager
named defaultPersistenceUnit

Thanks
Sumeet

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[Sidnei Basei]

Hi,

My configuration is like yours. Please, check your project/Build.scala file:

import sbt._
import Keys._
import PlayProject._
object ApplicationBuild extends Build {
val appName = "EncontreQuadras"
val appVersion = "1.0-SNAPSHOT"
val appDependencies = Seq(
// Add your project dependencies here,
"postgresql" % "postgresql" % "8.4-702.jdbc4",
"org.hibernate" % "hibernate-entitymanager" % "4.1.1.Final",
"org.hibernate" % "hibernate-core" % "4.1.1.Final",
"org.hibernate" % "hibernate-validator" % "4.2.0.Final"

)
val main = PlayProject(appName, appVersion, appDependencies, mainLang = JAVA).settings(
// Add your own project settings here
)
}

[]'s
Sidnei

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