/** PUBLIC: Add a type indicator conversion to this mapping. */
public void addClassIndicator(Class implementer, Object typeIndicator) {
if (typeIndicator == null) {
typeIndicator = Helper.getNullWrapper();
}
getTypeIndicatorTranslation().put(implementer, typeIndicator);
getTypeIndicatorTranslation().put(typeIndicator, implementer);
}
/** INTERNAL: Return the type for a specified implementor */
protected Object getTypeForImplementor(Class implementor) {
Object type = getTypeIndicatorTranslation().get(implementor);
if (type == Helper.getNullWrapper()) {
type = null;
}
return type;
}
/** INTERNAL: Return the implementor for a specified type */
protected Object getImplementorForType(Object type, AbstractSession session) {
if (type == null) {
return getTypeIndicatorTranslation().get(Helper.getNullWrapper());
}
// Must ensure the type is the same, i.e. Integer != BigDecimal.
try {
type = session.getDatasourcePlatform().convertObject(type, getTypeField().getType());
} catch (ConversionException e) {
throw ConversionException.couldNotBeConverted(this, getDescriptor(), e);
}
return getTypeIndicatorTranslation().get(type);
}
/** INTERNAL: Set the type field classification through searching the indicators hashtable. */
@Override
public void preInitialize(AbstractSession session) throws DescriptorException {
super.preInitialize(session);
if (getTypeIndicatorTranslation().isEmpty()) {
return;
}
Class type = null;
for (Iterator typeValuesEnum = getTypeIndicatorTranslation().values().iterator();
typeValuesEnum.hasNext() && (type == null); ) {
Object value = typeValuesEnum.next();
if ((value != Helper.getNullWrapper()) && (!(value instanceof Class))) {
type = value.getClass();
}
}
getTypeField().setType(type);
}
/**
* INTERNAL: Add indicators by classname. For use by the Mapping Workbench to avoid classpath
* dependencies
*/
public void addClassNameIndicator(String className, Object typeIndicator) {
if (typeIndicator == null) {
typeIndicator = Helper.getNullWrapper();
}
getTypeIndicatorNameTranslation().put(className, typeIndicator);
}
/**
* INTERNAL: Rehash any maps based on fields. This is used to clone descriptors for aggregates,
* which hammer field names.
*/
@Override
public void rehashFieldDependancies(AbstractSession session) {
setSourceToTargetQueryKeyFields(Helper.rehashMap(getSourceToTargetQueryKeyNames()));
}