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Hibernate throws org.hibernate.AnnotationException: No identifier specified for entity: com..domain.
...Id. Each @Entity needs an @Id - this is the primary key in the database.
If you don't want your entity to be persisted in a separate table, but rather be a part of other entities, you can use @Embeddable instead of @Entity.
If you want simply a data transfer object to hold some data from the hibe...
How should I print types like off_t and size_t?
...
You can use z for size_t and t for ptrdiff_t like in
printf("%zu %td", size, ptrdiff);
But my manpage says some older library used a different character than z and discourages use of it. Nevertheless, it's standardized (by the C99 standard). For those intmax_t ...
sbt-assembly: deduplication found error
...ependencies += "org.apache.spark" %% "spark-core" % "1.1.0" % "provided"
If needed, read more at
https://github.com/sbt/sbt-assembly#excluding-jars-and-files
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Swift alert view with OK and Cancel: which button tapped?
I have an alert view in Xcode written in Swift and I'd like to determine which button the user selected (it is a confirmation dialog) to do nothing or to execute something.
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What is the difference between Linq to XML Descendants and Elements
...cross both these keywords in the VS IntelliSense. I tried to googling the difference between them and did not get a clear answer. Which one of these have the best performance with small to medium XML files. Thanks
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Disable git EOL Conversions
...at. I have reduced it down to the following test case, which has as many different mechanisms for disabling this behavior as I could find.
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What is the difference between Reader and InputStream?
What is the difference between Reader and InputStream?
And when to use what?
If I can use Reader for reading characters why I will use inputstream, I guess to read objects?
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C: Run a System Command and Get Output? [duplicate]
... /* Open the command for reading. */
fp = popen("/bin/ls /etc/", "r");
if (fp == NULL) {
printf("Failed to run command\n" );
exit(1);
}
/* Read the output a line at a time - output it. */
while (fgets(path, sizeof(path), fp) != NULL) {
printf("%s", path);
}
/* close */
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Declare slice or make slice?
In Go, what is the difference between var s []int and s := make([]int, 0) ?
4 Answers
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RegEx backreferences in IntelliJ
..." is not required: jetbrains.com/idea/help/…. Also, for me it works only if I explicitly surround my group with "()", otherwise I can't reference it later. Ex: search (foo) replace: $1bar
– Ghedeon
Nov 17 '15 at 15:41
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