.append(this.getUuid()      , otherMembership.getUuid()     )
  public boolean equals(Object other) {    if (this == other) {      return true;    }    if (!(other instanceof Membership)) {      return false;    }    Membership otherMembership = (Membership) other;    return new EqualsBuilder()      .append(this.getOwner_id()  , otherMembership.getOwner_id() )      .append(this.getMember_id() , otherMembership.getMember_id())      .append(this.getField()     , otherMembership.getField()    )      .append(this.getVia_id()    , otherMembership.getVia_id()   )      .append(this.getDepth()     , otherMembership.getDepth()    )      .isEquals();  } // public boolean equals(other)