....
	@Override
	public void setValue(String newValue) {
		
		// do not allow null values!
		if (newValue==null) {
			newValue="";
		}
		
		getMixed().clear();

		FeatureMap.Entry cdata = null;

		// try to get the container Item EObject to determine the type
		Item item = (Item) this.eContainer;
		if (item != null && "xs:boolean".equals(item.getType())) {
			cdata = FeatureMapUtil.createTextEntry(newValue);
		} else {
			// default will wrap the value into a CDATA entry
			cdata = FeatureMapUtil.createCDATAEntry(newValue);
		}
		getMixed().add(cdata);
	}
	@Override
	public void eSet(int featureID, Object newValue) {
		
		switch (featureID) {
		case ModelPackage.VALUE__MIXED:
			((FeatureMap.Internal) getMixed()).set(newValue);
			return;
		case ModelPackage.VALUE__VALUE:
			setValue((String) newValue);
			return;
		}
		super.eSet(featureID, newValue);
	}
.....