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Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...on.
Example
Assuming you have a hibernate class object for a table with 10 rows based on a primary key combination (column 1 and column 2). Now, you have removed 5 rows from the table at some point of time. Now, if you try to add the same 10 rows again, while hibernate tries to persist the objects...
Is there a way to @Autowire a bean that requires constructor arguments?
I'm using Spring 3.0.5 and am using @Autowire annotation for my class members as much as possible. One of the beans that I need to autowire requires arguments to its constructor. I've looked through the Spring docs, but cannot seem to find any reference to how to annotate constructor arguments.
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Does the Java &= operator apply & or &&?
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edited Feb 3 at 0:26
answered Oct 11 '10 at 14:49
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Read/write files within a Linux kernel module
...ts)
{
struct file *filp = NULL;
mm_segment_t oldfs;
int err = 0;
oldfs = get_fs();
set_fs(get_ds());
filp = filp_open(path, flags, rights);
set_fs(oldfs);
if (IS_ERR(filp)) {
err = PTR_ERR(filp);
return NULL;
}
return filp;
}
Close a file (...
What's the difference between the 'ref' and 'out' keywords?
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answered Dec 23 '08 at 9:18
Rune GrimstadRune Grimstad
33.2k99 gold badges5656 silver badges7474 bronze badges
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Is mongodb running?
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20
should be : service mongodb status
– MhdSyrwan
Sep 2 '12 at 17:46
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与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处...
与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处有未经处理的异常: 0xC0000374:堆已损坏。 (参数: 0x77DC6668)这种错误可能就是与内存有关的释放问题。这里的错误示例代码主要是为了说明复制构造函数，尤其是含有...
How do I create and read a value from cookie?
...var date = new Date();
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
expires = "; expires=" + date.toGMTString();
}
else {
expires = "";
}
document.cookie = name + "=" + value + expires + "; path=/";
}
function getCookie(c_name) {
if (docum...
What is the meaning of the 'g' flag in regular expressions?
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answered Oct 20 '12 at 23:40
sachleensachleen
28.2k66 gold badges6969 silver badges7171 bronze badges
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