<?xml version="1.0" encoding="UTF-8"?>
<beans  xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                        http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
    version="1.1" bean-discovery-mode="all">

<scan>
    <exclude name="com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService"/>
</scan>

<?xml version="1.0" encoding="UTF-8"?>

<validation-config xmlns="http://jboss.org/xml/ns/javax/validation/configuration"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://jboss.org/xml/ns/javax/validation/configuration
validation-configuration-1.1.xsd"
version="1.1">
<executable-validation enabled="false" />

<?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">



<!-- LOCAL (DEFAULT) -->
<persistence-unit name="postgreSQL">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>


    <properties>
        <property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver" />


        <!-- LOCAL -->

        <property name="javax.persistence.jdbc.url" value="jdbc:postgresql://localhost:5432/rreefstore" />
        <property name="javax.persistence.jdbc.user" value="postgres" />
        <property name="javax.persistence.jdbc.password" value="dsv" />


        <!-- PRODUÇÃO -->
        <!-- <property name="javax.persistence.jdbc.url" value="jdbc:postgresql://urlServer:5432/tfBestJob"
            /> <property name="javax.persistence.jdbc.user" value="adminbj" /> <property
            name="javax.persistence.jdbc.password" value="senha" /> -->


        <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />

        <property name="hibernate.show_sql" value="true" />
        <property name="hibernate.format_sql" value="true" />
        <property name="hibernate.hbm2ddl.auto" value="update" />

        <property name="hibernate.c3p0.min_size" value="5" />
        <property name="hibernate.c3p0.max_size" value="10" />
        <property name="hibernate.c3p0.timeout" value="1800" />
        <property name="hibernate.c3p0.max_statements" value="50" />

    </properties>
</persistence-unit>

package br.com.rreefstore.model.entity;

   import java.util.Calendar;

   import javax.persistence.Column;
   import javax.persistence.Entity;
   import javax.persistence.GeneratedValue;
   import javax.persistence.GenerationType;
   import javax.persistence.Id;
   import javax.persistence.Table;
   import javax.persistence.UniqueConstraint;

   /**
    * @author Tiago Ferezin
    *
    */
   @Entity
   @Table(uniqueConstraints = { @UniqueConstraint(columnNames = "codigoPedido", name = "uk_codigoPedido") })
   public class Pedido extends AEntity<Pedido> {

/**
 *
 */
private static final long serialVersionUID = 1L;

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(nullable = false)
private Long idPedido;

@Column(nullable = false)
private String codigoPedido;

@Column(nullable = false)
private Integer quantidade;

@Column(nullable = false)
private Calendar dataCriacao;

private Calendar dataDesativacao;

public Pedido() {

}

/**
 * @return the idPedido
 */
public Long getIdPedido() {
    return idPedido;
}

/**
 * @param idPedido the idPedido to set
 */
public void setIdPedido(Long idPedido) {
    this.idPedido = idPedido;
}

/**
 * @return the codigoPedido
 */
public String getCodigoPedido() {
    return codigoPedido;
}

/**
 * @param codigoPedido the codigoPedido to set
 */
public void setCodigoPedido(String codigoPedido) {
    this.codigoPedido = codigoPedido;
}

/**
 * @return the quantidade
 */
public Integer getQuantidade() {
    return quantidade;
}

/**
 * @param quantidade the quantidade to set
 */
public void setQuantidade(Integer quantidade) {
    this.quantidade = quantidade;
}

/**
 * @return the dataCriacao
 */
public Calendar getDataCriacao() {
    return dataCriacao;
}

/**
 * @param dataCriacao the dataCriacao to set
 */
public void setDataCriacao(Calendar dataCriacao) {
    this.dataCriacao = dataCriacao;
}

@Override
public Long getId() {
    // TODO Auto-generated method stub
    return idPedido;
}

@Override
public void setId(Long id) {
    // TODO Auto-generated method stub
    this.idPedido = id;
}

@Override
public boolean isDeleted() {
    // TODO Auto-generated method stub
    return false;
}

@Override
public Calendar getDataDesativacao() {
    // TODO Auto-generated method stub
    return dataDesativacao;
}

@Override
public void setDataDesativacao(Calendar dataDesativacao) {
    // TODO Auto-generated method stub
    this.dataDesativacao = dataDesativacao;
}

}

<property name="hbm2ddl.auto">validate</property>

validate: validar o schema, não faz mudanças no banco de dados.
update: faz update o schema.
create: cria o schema, destruindo dados anteriores.
create-drop: drop o schema quando ao terminar a sessão.