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The same objects in JPA
I have entity model like this (using EclipseLink and JPA 2.0): @Entity class A { @Id @GeneratedValue(strategy = GenerationType.AUTO)[详细]
2022-12-22 15:47 分类:问答Use ssh from Windows command prompt [closed]
Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow.[详细]
2022-12-22 03:22 分类:问答c++ double dispatch with mirrored hierarchies
the following class hierarchies represent abstract resource handler and resource hierarchies. Both have the interfaces as base classes. Now imagine you write a system where you can implement multiple[详细]
2022-12-21 17:35 分类:问答Truncate the beginning of a log file in .NET
I have an VB.NET app that writes the status to a log file in text format.Over time, the file is getting large and I wanted to know if there is an efficient way to truncate the beginning of the file.[详细]
2022-12-21 07:00 分类:问答In Python, how do I loop through the dictionary and change the value if it equals something?
If the value is None, I\'d like to change it to \"\" (empty string). I start off like this, but I forget:[详细]
2022-12-20 19:16 分类:问答recvfrom max buffer TCP/IP
I am writi开发者_Python百科ng a small C program to understand sockets. What is the maximum length of data returned from recvfrom?[详细]
2022-12-20 16:35 分类:问答Can I create an ASP.NET website with users without using MembershipProvider?
Is it possible to have an ASP.NET website which allows users to register and login, without using a MembershipProvider?[详细]
2022-12-20 15:04 分类:问答How to do this in a mysql query
I have got a mysql table containing data about companies: id, company name, city, address, telephone.[详细]
2022-12-20 05:39 分类:问答