cdef.getParticleList().add(element);
} else if (comp instanceof ContainerElementBase) {
ContainerElementBase contain = (ContainerElementBase)comp;
boolean iscoll = comp instanceof CollectionElement;
if (contain.children().size() > 0) {
// no element name, but children; handle with recursive call
CommonCompositorDefinition part = buildCompositor(contain, 0, iscoll, hold);
addCompositorPart(part, cdef);