Direct-to-Field Mapping

Use direct-to-field mappings to map primitive object attributes, or non persistent regular objects, such as the JDK classes. For example, use a direct-to-field mapping to store a String attribute in a VARCHAR field.

Example 36-1 Direct-to-Field Mapping Example

Figure 36-1 illustrates a direct-to-field mapping between the Java attribute city and the relational database column CITY. Similarly, direct-to-field mappings could be defined from country to COUNTRY, id to ADDRESS_ID, established to EST_DATE, and province to PROVINCE.

Figure 36-1 Direct-to-Field Mapping

Description of "Figure 36-1 Direct-to-Field Mapping "

You can use a direct-to-field mapping with any of the following Converter instances:

• see "Object Type Converter"

• see "Serialized Object Converter"

• see "Type Conversion Converter"

You can use a direct-to-field mapping with a change policy (see "Configuring Change Policy".

See Chapter 38, "Configuring a Relational Direct-to-Field Mapping" for more information.