/**
* Gets the join used to join this subquery to the parent query.
*
* @return
*/
public QJoin getSubQueryJoin() {
if (parent != null) {
for (QJoin join : parent.exists) {
if (join.getTo() == this) {
return join;
}
}
}
return null;
}
public QJoin join(QPath path) {
if (path == null) return null;
final QJoin parent;
if (joins.containsKey(path)) {
return joins.get(path);
} else {
parent = join(path.getParent());
}
final QJoin join =
new QJoin(
path,
path.toJoinAlias(),
parent != null ? parent.getEntity() : path.getRelation(0).getEntity());
joins.put(path, join);
return join;
}
public void appendJoins(Criteria criteria) {
// Set up the joins
for (QJoin join : joins.values())
criteria.createAlias(join.getPath().toString(), join.getAlias(), JoinType.LEFT_OUTER_JOIN);
}
@SuppressWarnings("unchecked")
public <T> T back(Class<T> type) {
return (T) joined.getFrom();
}
