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JPA使用本机或命名查询返回HashMap >(JPA return HashMap> using Native or Named Query)

我有一个具有以下结构的表:

ID   id_client   id_order

1      1          10
2      1          15
3      1          13
4      2          20
5      2          40
6      2          9

我的问题是:如何创建一个返回结果的查询(命名或本机)

HashMap<Integer,ArrayList<Integer>>

我的地图包含一个唯一的id_client,其中包含一个所有id_order的arrayList:

1=>10,15,13

2=>20,40,9

注意 ; 我正在使用EclipseLink作为JPA实现

提前致谢。


i have a table with the folowing structure :

ID   id_client   id_order

1      1          10
2      1          15
3      1          13
4      2          20
5      2          40
6      2          9

my issue is : how to create a query(named or native) that return the result as

HashMap<Integer,ArrayList<Integer>>

my map contains a unique id_client with an arrayList of all id_order:

1=>10,15,13

2=>20,40,9

note ; i'm using EclipseLink as a JPA implementation

thanks in advance.


原文:https://stackoverflow.com/questions/38919621
更新时间:2023-07-04 20:07

最满意答案

停止进程正在扼杀它。

为什么你需要“停止”这个过程而不杀死它? “停止”这个过程是什么意思?

您可以使用此工具暂停和恢复进程。


Stopping a process is killing it.

Why do you need to "stop" the process without killing it? What do you mean by "stopping" the process?

You can use this tool to pause and resume processes.

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