/** Function to be called before delete */
private void onPreDelete() {
List<Association> associations = AssociationFinder.findAssociations(this.getClass());
for (Association assoc : associations) {
// Ignore if the class has the ignore on the field
if (assoc.clazz.getAnnotation(CascadeIgnore.class) == null
&& assoc.field.getAnnotation(CascadeIgnore.class) == null) {
List<? extends Model> childModels =
Ebean.createQuery(assoc.clazz)
.where()
.eq(assoc.field.getName() + ".id", getId())
.findList();
for (Model child : childModels) {
// If it is required, delete it, otherwise set it to null
if (assoc.required) {
child.delete();
} else {
try {
assoc.field.set(child, null);
Set<String> set = new HashSet<String>();
set.add(assoc.field.getName());
Ebean.update(child, set);
} catch (IllegalAccessException e) {
e
.printStackTrace(); // To change body of catch statement use File | Settings |
// File Templates.
}
}
}
}
}
}
public void runExampleUsingOrders() {
LoadExampleData.load();
PathProperties pathProperties =
PathProperties.parse("(id,status,orderDate,customer(id,name),details(*,product(sku)))");
Query<Order> query = Ebean.createQuery(Order.class);
pathProperties.apply(query);
List<Order> orders = query.where().gt("id", 1).findList();
String rawJson = Ebean.json().toJson(orders);
System.out.println(rawJson);
}
/**
* Creates a query for the left (or parent) class
*
* @param params The parameters passed to the services
* @return
*/
protected Query<L> createLeftQuery(ServiceParams params) {
return Ebean.createQuery(leftClass);
}
/**
* Creates a query for the junction class
*
* @param params The parameters passed to the services
* @return
*/
protected Query<J> createJunctionQuery(ServiceParams params) {
return Ebean.createQuery(junctionClass).fetch(rightFieldName);
}