protected Entity addItem(Entity parentEntity, Integer qtyValue, Double priceValue) {
EntityDefinition rootEntityDefn = parentEntity.getDefinition();
EntityDefinition itemDefn = (EntityDefinition) rootEntityDefn.getChildDefinition("item");
Entity item = (Entity) itemDefn.createNode();
if (qtyValue != null) {
NodeDefinition qtyDefn = itemDefn.getChildDefinition("qty");
IntegerAttribute qty = (IntegerAttribute) qtyDefn.createNode();
qty.setValue(new IntegerValue(qtyValue, null));
item.add(qty);
}
if (priceValue != null) {
NumericAttributeDefinition priceDefn =
(NumericAttributeDefinition) itemDefn.getChildDefinition("price");
RealAttribute price = (RealAttribute) priceDefn.createNode();
price.setValue(new RealValue(priceValue, null));
item.add(price);
}
NumberAttributeDefinition totalDefn =
(NumberAttributeDefinition) itemDefn.getChildDefinition("total");
RealAttribute total = (RealAttribute) totalDefn.createNode();
item.add(total);
NumberAttributeDefinition discountDefn =
(NumberAttributeDefinition) itemDefn.getChildDefinition("discount_percent");
IntegerAttribute discount = (IntegerAttribute) discountDefn.createNode();
item.add(discount);
parentEntity.add(item);
return item;
}
private NodeDefinition getChildDefinition(Entity entity, String childName) {
EntityDefinition entityDefn = entity.getDefinition();
NodeDefinition childDefn = entityDefn.getChildDefinition(childName);
return childDefn;
}