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我有一個對象:獲取集合的過濾器元素。的EclipseLink。標準API
@Entity
@Table(name = "users", catalog = "adm", uniqueConstraints = @UniqueConstraint(columnNames = "loginUser"))
public class User implements GenericEntityPK<Integer> {
private Set<Permission> permissions = new HashSet<Permission>(0);
@ManyToMany(fetch = FetchType.LAZY)
@JoinTable(name = "user_l_permission", catalog = "adm", joinColumns = {
@JoinColumn(name = "idUser", nullable = false, updatable = false) }, inverseJoinColumns = {
@JoinColumn(name = "idPermission", nullable = false, updatable = false) })
public Set<Permission> getPermissions() {
return this.permissions;
}
}
我想選擇用戶實體,並獲取權限的集合,where子句。換句話說,權限收集只能包含滿足條件的元素。 我試圖做SetJoin但沒有成功。
有沒有辦法做到這一點?
謝謝您的回答。我已經說過了 - 查詢權限並使用單獨的查詢進行過濾。 –