Dynamic load and refresh of mapping xml

[Maruthi S]

Currently dozer supports the loading of xmls from the filesystem either via the class path or physical path of the mapping xmls.

Is there a mechanism to load the mapping xmls from the DB and refresh the mapper bean during the runtime, basically i need  to find a way to hold the mapping.xml in the DB and refresh the mapper interface whenever its required.

Please suggest if there are any options for the same.

[dmitry (lv)]

Hi,

The only way to refresh mappings is to create a new instance of DozerBeanMapper. But it should not be a problem. For dynamic mappings you may check the trunk version, where dynamic API mappings are implemented. Looks something like this:

    BeanMappingBuilder builder = new BeanMappingBuilder() {
      protected void configure() {
        mapping(Bean.class, Bean.class)
                .exclude("excluded")
                .fields("src", "dest",
                        copyByReference(),
                        collectionStrategy(true, RelationshipType.NON_CUMULATIVE),
                        hintA(String.class),
                        hintB(Integer.class),
                        oneWay()
                );
      }
    };

With this approach you could read your configuration from DB, create new Dozer instance and inject dynamic mappings via API. API mappings and XML could be mixed.

Dmitry