Basic classes 

Overview 

In Doma, “Basic classes” are Java types that can be mapped directly to database column types.

List of basic classes 

primitive types except char
wrapper classes for the above primitive types
enum types
byte[]
java.lang.String
java.lang.Object
java.math.BigDecimal
java.math.BigInteger
java.time.LocalDate
java.time.LocalTime
java.time.LocalDateTime
java.sql.Date
java.sql.Time
java.sql.Timestamp
java.sql.Array
java.sql.Blob
java.sql.Clob
java.sql.SQLXML
java.util.Date

Differences between temporal classes 

java.time.LocalDate:: Represents SQL DATE
java.time.LocalTime:: Represents SQL TIME
java.time.LocalDateTime:: Represents SQL TIMESTAMP and can store nanoseconds if the RDBMS supports it
java.sql.Date:: Represents SQL DATE
java.sql.Time:: Represents SQL TIME
java.sql.Timestamp:: Represents SQL TIMESTAMP and can store nanoseconds if the RDBMS supports it
java.util.Date:: Represents SQL TIMESTAMP but does not store nanoseconds

Examples 

Using in entity class 

@Entity
public class Employee {

    @Id
    Integer employeeId;

    Optional<String> employeeName;

    @Version
    Long versionNo;

    ...
}

Using in domain class 

@Domain(valueType = String.class)
public class PhoneNumber {

    private final String value;

    public PhoneNumber(String value) {
        this.value = value;
    }

    public String getValue() {
        return value;
    }
}

Using in DAO interface 

@Dao
public interface EmployeeDao {

    @Select
    Employee selectById(Integer employeeId);

    @Select
    List<String> selectAllName();
}