tree table component with auto expanded nodes

Hello,

for one of my customers I've created a wizard step with some change validation info.

the data is arranged in a flat tree structure which is displayed in the treetable component.

See attached example screenshot.

One requirement is that non "green" checks are auto expanded for the user.

I tried to implement it as described in the customizers guide, but so far no luck.

The TreeTable component uses a custom AbstractConfigurableTableBuilder with an custom ExpansionStateManager

the table config looks like this

JcaTreeConfig treeCfg = (JcaTreeConfig) factory.newTreeConfig();

 treeCfg.setDataSourceMode(DataSourceMode.DISABLED);
 treeCfg.setType(Object.class.getName());
 treeCfg.setTargetObject("origObject");
 treeCfg.setComponentMode(ComponentMode.VIEW);
 treeCfg.setActionModel("tcw tcwValidation table");
 //treeCfg.setMenubarName("tcw tcwValidation table");

 treeCfg.setId(TCW_TCWVALIDATION_TABLE_ID);
 treeCfg.setLabel(WTMessage.getLocalizedMessage(TCW_RESOURCE, "tcw.validationTable.title", (Object[]) null, SessionHelper.getLocale()));

 treeCfg.setNodeColumn(TCW_VAL_COLID_VALTYPE);

 treeCfg.setShowTreeLines(true);
 treeCfg.setExpansionLevel(DescriptorConstants.TableTreeProperties.FULL_EXPAND);

 treeCfg.setFindInTableEnabled(false);
 treeCfg.setFindInTableMode(FindInTableMode.DISABLED);
 treeCfg.setShowCount(true);

 treeCfg.setDisableAction("false");
 treeCfg.setRowBasedObjectHandle(true);

 addColumn(TCW_VAL_COLID_VALTYPE, treeCfg, factory, true, false, false);
 addColumn(TCW_VAL_COLID_CHECKTYPE, treeCfg, factory, true, false, false);
 addColumn(TCW_VAL_COLID_MESSAGE, treeCfg, factory, true, false, false);
 addColumn(TCW_VAL_COLID_RESULTTYPE, treeCfg, factory, true, false, false);
 if (isTCWWizardMode) {
 addColumn(TCW_VAL_COLID_ACTION, treeCfg, factory, true, false, false);
 addColumn(TCW_VAL_COLID_RELATEDOBJ, treeCfg, factory, true, false, false);
 }

the root nodes list is build like this

 List rootNodes = new ArrayList();
 for (TCWValidationCheckType t : topChecks) {
 TCWValidationBean rowBean = new TCWValidationBean(t);
 rowBean.setModelContext(modelContext);
 rowBean.setHasChildren(true);
 rowBean.setDepth(1);
 if ("INFO".equals(t.getCheckResult())) {
 if (!"hideAllGreen".equals(resultFilter)) {
 addExpandedNode(rowBean);
 rootNodes.add(rowBean);
 }
 } else if (!"SUCCESS".equals(t.getCheckResult())) {
 // check is not ok, add to auto expand list
 addExpandedNode(rowBean);
 rootNodes.add(rowBean);
 } else {
 if (!"hideAllGreen".equals(resultFilter)) {
 rootNodes.add(rowBean);
 }
 }
 }
 if (rootNodes.isEmpty()) {
 // add entry "all successfull"
 String x = WTMessage.getLocalizedMessage(TCW_RESOURCE,"tcw.validation.summarymessage.allchecksok", (Object[]) null, SessionHelper.getLocale());
 TCWValidationBean rowBean = new TCWValidationBean(x);
 rootNodes.add(rowBean);
 addExpandedNode(rowBean);
 }

the overriden method isExpandNeeded looks like this

 @Override
 public boolean isExpandNeeded(Object beanObjIn, int level) throws WTException {
 boolean expandNeeded = false;
 if (beanObjIn instanceof TCWValidationBean) {
 TCWValidationBean tcwValBean = (TCWValidationBean) beanObjIn;
 if (this.getExpandedOids() != null && tcwValBean.getOid() != null && this.getExpandedOids().contains(tcwValBean.getOid().toString())) {
 expandNeeded = true;
 }
 } 
 return expandNeeded;
 }

setting the root nodes for expand & setting everything to expand_full seems to have no effect.

there are no errors or hints in the log unfortunately.

manual by the user "expand" works without a problem.

any suggestions maybe? what did I forget/miss? 😉

THANKS!