title: JPA annotation for default value for a column having type BigDecimal
body: <p>In one of my model taking column value as BigDecimal, i need to set default value as 0 at jpa level.How would i do that?</p>
  
  <pre><code>@Entity
  public class Myclass{
  @Column
  private BigDecimal value;
  }
  </code></pre>