sCallback = Val.chkStr(request.getParameter("callback"));
// make the list of defined editor types
StringBuilder sb = new StringBuilder();
sb.append("{\"types\": [");
Schemas schemas = context.getCatalogConfiguration().getConfiguredSchemas();
if (schemas != null) {
int n = 0;
msgBroker = this.getMessageBroker(request,response,context,msgBroker);
for (Schema schema: schemas.values()) {
if (schema.getEditable()) {
GxeDefinition definition = schema.getGxeEditorDefinition();
if (definition != null) {
String key = schema.getKey();
String label = null;