/** * Actively performs the binding from the CForms-form to the ObjectModel wrapped in a jxpath * context */ public void doSave(Widget frmModel, JXPathContext jxpc) throws BindingException { Widget widget = selectWidget(frmModel, this.fieldId); Object value = widget.getValue(); if (value != null && convertor != null) { value = convertor.convertToString(value, convertorLocale, null); } Object oldValue = jxpc.getValue(this.xpath); if (getLogger().isDebugEnabled()) { getLogger().debug("value= " + value + " -- oldvalue=" + oldValue); } boolean update = false; if ((value == null && oldValue != null) || value != null && !value.equals(oldValue)) { // first update the value itself jxpc.createPathAndSetValue(this.xpath, value); // now perform any other bindings that need to be performed when the value is updated JXPathContext subContext = null; try { subContext = jxpc.getRelativeContext(jxpc.getPointer(this.xpath)); } catch (JXPathException e) { // if the value has been set to null and the underlying model is a bean, then // JXPath will not be able to create a relative context if (getLogger().isDebugEnabled()) { getLogger() .debug("(Ignorable) problem binding field " + widget.getRequestParameterName(), e); } } if (subContext != null) { this.updateBinding.saveFormToModel(frmModel, subContext); } update = true; } if (getLogger().isDebugEnabled()) { getLogger() .debug("done saving " + this + " -- value= " + value + " -- on-update == " + update); } }