Gerar Tabela atraves da classe

Assuntos Gerais
#1

Configurei o meu persistence da seguinte forma :
Só que o meu problema é que nao esta gerando a tabela fisicamente, de acordo com as minhas classes.

O que sera que esta de errado ?

        <properties>
            <property name="eclipselink.ddl-generation" value="drop-and-create-tables"/>
            <property name="eclipselink.create-ddl-jdbc-file-name" value="createDDL_ddlGeneration.jdbc"/>
            <property name="eclipselink.drop-ddl-jdbc-file-name" value="dropDDL_ddlGeneration.jdbc"/>
            <property name="eclipselink.ddl-generation.output-mode" value="both"/>
        </properties>
#2

Cara, pode ser várias coisas, podemos começar assim, o arquivo persistence.xml está aonde?, dentro do META-INF?
Segue um exemplo de um properties usando eclipselink como exemplo:

&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
&lt;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"&gt;
  &lt;persistence-unit name="ssPU" transaction-type="RESOURCE_LOCAL"&gt;
    &lt;provider&gt;org.eclipse.persistence.jpa.PersistenceProvider&lt;/provider&gt;
    &lt;class&gt;br.com.ss.entidade.Serie&lt;/class&gt;
    &lt;class&gt;br.com.ss.entidade.Exercicio&lt;/class&gt;
    &lt;class&gt;br.com.ss.entidade.Documento&lt;/class&gt;
    &lt;class&gt;br.com.ss.entidade.Grupo&lt;/class&gt;
    &lt;class&gt;br.com.ss.entidade.Treino&lt;/class&gt;
    &lt;class&gt;br.com.ss.entidade.Imagem&lt;/class&gt;
    &lt;class&gt;br.com.ss.entidade.Usuario&lt;/class&gt;
    &lt;exclude-unlisted-classes&gt;false&lt;/exclude-unlisted-classes&gt;
    &lt;shared-cache-mode&gt;NONE&lt;/shared-cache-mode&gt;
    &lt;properties&gt;
      &lt;property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/ssdb?zeroDateTimeBehavior=convertToNull"/&gt;
      &lt;property name="javax.persistence.jdbc.password" value=""/&gt;
      &lt;property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/&gt;
      &lt;property name="javax.persistence.jdbc.user" value="root"/&gt;
&lt;!--       &lt;property name="eclipselink.ddl-generation" value="drop-and-create-tables"/&gt; --&gt;
    &lt;/properties&gt;
  &lt;/persistence-unit&gt;
&lt;/persistence&gt;

Poste seu código e/ou a estrutura do seu projeto.

#3

Cara blz ?? entao estou usando o EJB, e meu persistence.xml, esta dentro do arquivos de configuracao (Estou usando Netbeans).

Segue abaixo meu persistence.

<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="planouni" transaction-type="RESOURCE_LOCAL">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
    <class>br.uniplan.modelo.planouni.Cadger</class>
    <class>br.uniplan.modelo.planouni.Cadparam</class>
    <class>br.uniplan.modelo.planouni.Presttab</class>
    <exclude-unlisted-classes>true</exclude-unlisted-classes>
    <validation-mode>NONE</validation-mode>
    <properties>
      <property name="eclipselink.ddl-generation" value="drop-and-create-tables"/>
      <property name="eclipselink.create-ddl-jdbc-file-name" value="createDDL_ddlGeneration.jdbc"/>
      <property name="eclipselink.drop-ddl-jdbc-file-name" value="dropDDL_ddlGeneration.jdbc"/>
      <property name="eclipselink.ddl-generation.output-mode" value="both"/>
    </properties>
  </persistence-unit>
#4