Country.java

@BindType
@BindSqlType
public class Country {
  @BindSqlColumn(columnType = ColumnType.PRIMARY_KEY)
  public long id;
  public long area;

  @BindSqlColumn(nullable = false, columnType = ColumnType.UNIQUE)
  public String code;

  @BindSqlColumn(nullable = false)
  public String callingCode;
  public String region;

  @BindSqlColumn(nullable = false)
  public String name;	  
}

PhoneNumber.java

@BindType
public class PhoneNumber {
  public long id;
  public ActionType action;

  @BindSqlColumn(nullable = false, columnType = ColumnType.UNIQUE)
  public String number;
  public String countryCode;
  public String contactName;
  public String contactId;
}

PrefixConfig.java

@BindSqlType
public class PrefixConfig {
  public long id;
  public String defaultCountry;
  public String dualBillingPrefix;
  public boolean enabled;
  public long dialogTimeout;
}