@Entity
 @Table(name="pushmaster")
 public class Pushdata {

@Id
@SequenceGenerator(name = "pushmaster_id_seq",
sequenceName = "pushmaster_id_seq",
allocationSize = 1)
@GeneratedValue (strategy = GenerationType.SEQUENCE,
generator = "pushmaster_id_seq")
@Column(name="id", unique = true)
public int id;

private String title;
private String content;

public Pushdata (){

}

public Pushdata (String title, String content){
    this.title=title;
    this.content=content;
}

@Column(name = "title")
public String getTitle() {
    return title;
}

public void setTitle(String title) {
    this.title = title;
}

@Column(name = "content")
public String getContent() {
    return content;
}

public void setContent(String content) {
    this.content = content;
}


public int getId() {
    return id;
}

public void setId(int id) {
    this.id = id;
}}

(List<Pushdata>)
            factoryClass.getSessionFactory().
                    openSession().createQuery(" from Pushdata" ).list();

<hibernate-configuration>
<session-factory>

    <property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
    <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQL94Dialect</property>

    <property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/</property>

    <property name="hibernate.connection.username">postgres</property>
    <property name="hibernate.connection.password">password</property>

    <property name="connection_pool_size">1</property>

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

    <property name="hibernate.connection.autocommit">true</property>

    <property name="show_sql">true</property>

    <mapping class="ru.spb.Pushdata"/>

</session-factory>