useExclusiveConnectionMapping.setXPath(getPrimaryNamespaceXPath() + "use-exclusive-connection/text()");
useExclusiveConnectionMapping.setNullValue(Boolean.FALSE);
descriptor.addMapping(useExclusiveConnectionMapping);
XMLCompositeCollectionMapping joinedAttributeMapping = new XMLCompositeCollectionMapping();
joinedAttributeMapping.useCollectionClass(NonSynchronizedVector.class);
joinedAttributeMapping.setAttributeName("joinedAttributeExpressions");
joinedAttributeMapping.setGetMethodName("getJoinedAttributeExpressions");
joinedAttributeMapping.setSetMethodName("setJoinedAttributeExpressions");
joinedAttributeMapping.setReferenceClass(Expression.class);
joinedAttributeMapping.setXPath(getPrimaryNamespaceXPath() + "joined-attribute-expressions/" + getPrimaryNamespaceXPath() + "expression");