Inheritance doesn't have any effect on updates, deletes, or activation depth, just the query aspect of objects.
继承不会对更新、删除和激活深度产生任何影响,只会影响到对象的查询方面。
In other words, activation depth is a count of the number of references identified from the root object that db4o will traverse and return as part of a query.
换句话说,激活深度表示从根对象中标识的引用总数,db4o将在查询中遍历根对象并返回结果。
In the previous case, when retrieving Ben, the default activation depth of 5 is sufficient to also retrieve Jessica because she only requires a single reference-traversal.
在前面的例子中,当检索Ben时,默认的激活深度5足够用于检索Jessica,因为它只需要仅仅一个引用遍历。
应用推荐