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Hibernate problem - “Use of @OneToMany or @ManyToMany targeting an unmapped class”
...ons look fine. Here are the things to check:
make sure the annotation is javax.persistence.Entity, and not org.hibernate.annotations.Entity. The former makes the entity detectable. The latter is just an addition.
if you are manually listing your entities (in persistence.xml, in hibernate.cfg.xml, ...
In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...his is just a carry-over from using StringUtils.EMPTY in commons.lang from java. One point of interest is I'm almost blind and this definately does help with readability for me.
– Brett Ryan
Sep 11 '09 at 4:34
...
How to add a button to PreferenceScreen
...erencesFromResource(R.xml.pref_main);
}
}
}
SettingActivity.java
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Fr...
No appenders could be found for logger(log4j)?
...tion on the classpath (usually the same as the jar files).
Optionally set java option: -Dlog4j.configuration=file:///path/to/log4j.properties.
log4j uses Thread.getContextClassLoader().getResource() to locate the default configuration files and does not directly check the file system. Knowing t...
Download file from web in Python 3
I am creating a program that will download a .jar (java) file from a web server, by reading the URL that is specified in the .jad file of the same game/application. I'm using Python 3.2.1
...
How do I put an already-running process under nohup?
...kground (not suspend it) and then disown it.
Issue:
% jobs
[1] running java
[2] suspended vi
% disown %1
See http://www.quantprinciple.com/invest/index.php/docs/tipsandtricks/unix/jobcontrol/
for a more detailed discussion of Unix Job Control.
...
Method overloading in Objective-C?
...h, this is not supported in ObjC like it is with other languages including Java and now Swift.
– Chris Hatton
Nov 6 '15 at 12:57
...
Escaping a forward slash in a regular expression
...
For java, you don't need to.
eg: "^(.*)/\\*LOG:(\\d+)\\*/(.*)$" ==> ^(.*)/\*LOG:(\d+)\*/(.*)$
If you put \ in front of /. IDE will tell you "Redundant Character Escape "\/" in ReGex"
...
How can I custom-format the Autocomplete plug-in results?
...+ "</a>")
.appendTo(ul);
};
var availableTags = [
"JavaScript",
"ActionScript",
"C++",
"Delphi",
"Cobol",
"Java",
"Ruby",
"Python",
"Perl",
"Groove",
"Lisp",
"Pascal",
"Assembly",
"Cliper",
];
$('#search').autocomplete({
...
What is duck typing?
... typing a lot.
Useful reading
There are good examples of duck typing for Java, Python, JavaScript
etc at https://en.wikipedia.org/wiki/Duck_typing
Here is also a good answer which describes the advantages of dynamic
typing and also its disadvantages: What is the supposed productivity gain of dyna...