protected OrderingCriteriaBuilder makeCriteriaBuilder() {
EventCriteriaBuilder eventCriteriaBuilder = new EventCriteriaBuilder();
SingleSortState<String> defaultSort = new SingleSortState<String>();
defaultSort.setSort(
new SortParam<String>("insertTime", false)); // Sort by Insert Time by default
eventCriteriaBuilder.setSortState(defaultSort);
return eventCriteriaBuilder;
}
public void build(Criteria criteria) {
SortParam sort = sortState.getSort();
String property;
if (sort != null && sort.getProperty() != null) {
property = sort.getProperty();
asc = sort.isAscending();
} else {
property = defaultProperty;
}
if (property != null) {
if (property.contains(".")) {
// for 'dot' properties we need to add aliases
// e.g. for the property 'orderbook.order.item.name' we need to add an aliases for 'order'
// and 'order.item'
String path[] = property.split("\\.");
for (int ii = 0; ii < path.length - 1; ii++) {
StringBuffer sb = new StringBuffer();
for (int jj = 0; jj <= ii; jj++) {
if (sb.length() > 0) sb.append(".");
sb.append(path[jj]);
}
criteria.createAlias(sb.toString(), path[ii], CriteriaSpecification.LEFT_JOIN);
}
// when we have a 'dot' property we want to sort by the sub tables field
// e.g. for the property 'orderbook.order.item.name' we need to sort by 'item.name'
if (path.length > 1)
property = String.format("%s.%s", path[path.length - 2], path[path.length - 1]);
else property = path[path.length - 1];
}
Order order = asc ? Order.asc(property) : Order.desc(property);
order = cased ? order : order.ignoreCase();
criteria.addOrder(order);
}
}
public void build(final List<Predicate> criteria) {
final SortParam sort = sortState.getSort();
String property;
if (sort != null && sort.getProperty() != null) {
property = sort.getProperty();
asc = sort.isAscending();
} else {
property = defaultProperty;
}
if (property != null) {
if (property.contains(".")) {
// for 'dot' properties we need to add aliases
// e.g. for the property 'orderbook.order.item.name' we need to add an
// aliases for 'order' and 'order.item'
final String path[] = property.split("\\.");
for (int ii = 0; ii < path.length - 1; ii++) {
final StringBuffer sb = new StringBuffer();
for (int jj = 0; jj <= ii; jj++) {
if (sb.length() > 0) {
sb.append(".");
}
sb.append(path[jj]);
}
// TODO
// criteria.createAlias(sb.toString(), path[ii],
// CriteriaSpecification.LEFT_JOIN);
}
// when we have a 'dot' property we want to sort by the sub tables field
// e.g. for the property 'orderbook.order.item.name' we need to sort by
// 'item.name'
if (path.length > 1) {
property = String.format("%s.%s", path[path.length - 2], path[path.length - 1]);
} else {
property = path[path.length - 1];
}
}
final EntityManager em = Databinder.getEntityManager();
final CriteriaBuilder cb = em.getCriteriaBuilder();
final CriteriaQuery<T> cq = cb.createQuery(entityClass);
final Root<T> root = cq.from(entityClass);
cq.orderBy(cb.asc(root.get(property)));
final javax.persistence.criteria.Order order =
asc ? cb.asc(root.get(property)) : cb.desc(root.get(property));
// TODO order = cased ? order : order.ignoreCase();
// criteria.addOrder(order);
cq.orderBy(order);
}
}
/**
* Returns current sort state.
*
* @return current sort state
*/
public SortParam<S> getSort() {
return sortState.getSort();
}
/**
* Sets the current sort state.
*
* @param param parameter containing new sorting information
*/
public void setSort(final SortParam<S> param) {
sortState.setSort(param);
}
/**
* Sets the current sort state.
*
* @param property sort property
* @param order sort order
*/
public void setSort(final S property, final SortOrder order) {
sortState.setPropertySortOrder(property, order);
}
