/** INTERNAL: Find the alias for a given table */ public DatabaseTable aliasForTable(DatabaseTable table) { DatabaseMapping mapping = getMapping(); if (isAttribute() || ((mapping != null) && (mapping.isAggregateObjectMapping() || mapping.isTransformationMapping()))) { return ((DataExpression) getBaseExpression()).aliasForTable(table); } // "ref" and "structure" mappings, no table printed in the FROM clause, need to get the table // alias form the parent table if ((mapping != null) && (mapping.isReferenceMapping() || mapping.isStructureMapping())) { DatabaseTable alias = getBaseExpression().aliasForTable(mapping.getDescriptor().getTables().firstElement()); alias.setName(alias.getName() + "." + mapping.getField().getName()); return alias; } // For direct-collection mappings the alias is store on the table expression. if ((mapping != null) && (mapping.isDirectCollectionMapping())) { if (tableAliases != null) { DatabaseTable aliasedTable = tableAliases.keyAtValue(table); if (aliasedTable != null) { return aliasedTable; } } return getTable(table).aliasForTable(table); } return super.aliasForTable(table); }
protected static boolean verifyFieldAndMapping( AbstractSession session, DatabaseField field, ClassDescriptor descriptor, DatabaseMapping mapping) { verifyField(session, field, descriptor); while (mapping.isAggregateObjectMapping()) { ClassDescriptor referenceDescriptor = ((AggregateObjectMapping) mapping).getReferenceDescriptor(); mapping = referenceDescriptor.getObjectBuilder().getMappingForField(field); verifyFieldAndMapping(session, field, referenceDescriptor, mapping); } if (!mapping.isDirectToFieldMapping() && !mapping.isTransformationMapping()) { String mappingTypeName = Helper.getShortClassName(mapping); session .getIntegrityChecker() .handleError( DescriptorException.returningPolicyMappingNotSupported( field.getName(), mappingTypeName, mapping)); return false; } else { return true; } }