我正在尝试删除父表行并观察它是否在子表行上级联(删除)。带有 java 注释的父子表实体是:
//Table details
@Entity
@Table(name="PARENT_TABLE")
//Mandatory Column details
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name="PARENT_TABLE_ID")
private Integer id;
.
.
.
@OneToMany(cascade={CascadeType.ALL}, mappedBy = "parentTable")
private Set<ChildTable> setChildTable;
//Child table entity details:
@Entity
@Table(name = "CHILD_TABLE")
//Column details
@Id
@Column(name = "PARENT_TABLE_ID")
@GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
.
.
private ParentTable parentTable;
@ManyToOne(cascade=CascadeType.ALL)
@JoinColumn(name = "PARENT_TABLE_ID")
public ParentTable getPatentTable() {
return parentTable;
}
//QueryDSL to Delete child table row, looks like this:
HibernateDeleteClause query = new HibernateDeleteClause(getSession(),QChildTable.childTable);
Path<?> idPath = QChildTable.childTable;
query.where(((NumberPath<?>)idPath).in((Number[]) ids)).execute();
//QueryDSL to Delete parent table rows, looks like this:
HibernateDeleteClause query = new HibernateDeleteClause(getSession(),QParentTable.parentTable);
Path<?> idPath = QParentTable.parentTable;
query.where(((NumberPath<?>)idPath).in((Number[]) ids)).execute();
如果我删除孩子然后尝试删除父表行,它工作正常。寻求帮助以插入工作方式一次删除父表和子表行。与创建分配数据和插入的 ParentTable 对象一样,插入父表和子表行。谢谢您的帮助。