/** Return any tables that are defined by this expression (and not its base). */
@Override
public List<DatabaseTable> getOwnedTables() {
ClassDescriptor descriptor = getDescriptor();
List<DatabaseTable> tables = null;
if (descriptor == null) {
List additionalTables = getAdditionalTables();
if (additionalTables == null) {
return null;
} else {
return new ArrayList(additionalTables);
}
} else if (descriptor.isAggregateDescriptor()) {
return null;
} else if ((descriptor.getHistoryPolicy() != null)
&& (getAsOfClause() != null && getAsOfClause().getValue() != null)) {
tables = descriptor.getHistoryPolicy().getHistoricalTables();
} else if (isUsingOuterJoinForMultitableInheritance()) {
tables = descriptor.getInheritancePolicy().getAllTables();
} else {
tables = descriptor.getTables();
}
List additionalTables = getAdditionalTables();
if (additionalTables != null) {
tables = new Vector(tables);
Helper.addAllUniqueToList(tables, additionalTables);
return tables;
}
return tables;
}
/** 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()));
}