Doing more with DAO - iBATIS in Action - page 255

between these attributes and Java's Map interface, it would be trivial to create a
Map-based version of the DAO that simply used a Map to hide the JNDI attributes
structure. In this section however, we will create a DAO that will use the bean from
the previous section by mapping it to an LDAP inetOrgPerson entry using the
mapping in table 11.2.

Table 11.1 JavaBean to LDAP attribute mapping

Bean property LDAP attribute

userId uid

mail mail

description description

lastName sn

firstName givenName

This mapping will be accomplished in our DAO implementation by using meth-
ods to create a bean from an Attributes object, or an Attributes object from a
bean. While it would be possible to create a reflection-based mapping mechanism
for this, we are going to make our DAO implementation very simple and just hard-
code the mapping. Listing 11.5 contains the three methods from our DAO imple-
mentation that are responsible for that mapping.

Listing 11.5 Support methods for our LDAP DAO implementation

private Attributes getAttributes(Contact contact){
Attributes returnValue = new BasicAttributes();
returnValue.put("mail", contact.getMail());
returnValue.put("uid", contact.getUserId());
returnValue.put("objectClass", "inetOrgPerson");
returnValue.put(
"description", contact.getDescription());
returnValue.put("sn", contact.getLastName());
returnValue.put("cn", contact.getUserId());
returnValue.put("givenName", contact.getFirstName());
return returnValue;
}

private Contact getContact(Attributes attributes) {
Contact contact = new Contact();
contact.setDescription(
getAttributeValue(attributes, "description"));
contact.setLastName(
getAttributeValue(attributes, "sn"));