I have an EJB3 entity bean Player which is annotated as given below:
@Entity
@Table(name = "PLAYER")
public class Player {
public Player() {
super();
}
@Id
@GeneratedValue
private String id;
@Column(nullable = false)
private String firstName;
private String lastName;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}
I am using Apache Derby DB to persist this. I have a persistence.xml file which explains the hibernate properties and I have define hibernate.hbm2ddl.auto=create
.
<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="PlayerApp" transaction-type="RESOURCE_LOCAL">
<provider开发者_开发百科>org.hibernate.ejb.HibernatePersistence</provider>
<class>com.cricinfo.domain.Player</class>
<properties>
<property name="hibernate.connection.driver_class" value="org.apache.derby.jdbc.ClientDriver" />
<property name="hibernate.dialect" value="org.hibernate.dialect.DerbyDialect"/>
<property name="hibernate.hbm2ddl.auto" value="create" />
<property name="hibernate.connection.url"
value="jdbc:derby://localhost:1527/PlayerAppDB;create=true" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.format_sql" value="true" />
</properties>
</persistence-unit>
But when I try to persist this object I get an exception saying
Caused by: org.apache.derby.client.am.SqlException: Table/View 'PLAYER' does not exist.
at org.apache.derby.client.am.Statement.completeSqlca(Unknown Source)
Isn't it supposed to auto create the tables since I have set the property hibernate.hbm2ddl.auto ? Or is there something that I am missing?
My main method is as shown below:
public static void main(String[] args) {
Player p = new Player();
p.setFirstName("A");
p.setLastName("BC");
EntityManagerFactory factory = Persistence.createEntityManagerFactory("PlayerApp");
EntityManager entityMgr = factory.createEntityManager();
EntityTransaction tx = entityMgr.getTransaction();
tx.begin();
entityMgr.persist(p);
tx.commit();
entityMgr.close();
factory.close();
}
Add the below property
<property name="hibernate.generateDdl" value="true" />
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