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Persistence unit as RESOURCE_LOCAL or JTA?
...URCE_LOCAL is fine. This would use basic JDBC-level transactions. The downside is that the transaction is local to the JPA persistence unit, so if you want a transaction that spans multiple persistence units (or other databases), then RESOURCE_LOCAL may not be good enough.
JTA is also used for mana...
Qt: *.pro vs *.pri
...l as sync'ing, bugfixing, and so on.
You could even include a .pri file inside another .pri file if you wish. You could also include .pri files in different subprojects, etc. It is very nice.
The syntax is the same, however, for both the .pro and .pri files. In the end, you would run qmake on the .p...
Uninstalling Android ADT
...hrowing a wierd error (Failed to fetch URL https://dl-ssl.google.com/android/repository/addons_list.xml , reason: File not found) and I need a complete, fresh re-install.
...
UITableView + Add content offset at top
...st give some space to the ADBannerView at the top of the screen so what I did was in the viewDidLoad method I added:
[self.tableView setContentInset:UIEdgeInsetsMake(50,0,0,0)];
the values it takes are UIEdgeInsetsMake(top,left,bottom,right).
Alternatively the same with Swift:
self.tableView.co...
Namespace for [DataContract]
...
That's it, I didn't have the reference in my solution! I thought that if a reference were needed, it would get me an error on the line using System.Runtime.Serialization;. I guess I was wrong :)
– Otiel
...
Why doesn't Java Map extend Collection?
...lements? The only reasonable answer
is "Key-value pairs", but this
provides a very limited (and not
particularly useful) Map abstraction.
You can't ask what value a given key
maps to, nor can you delete the entry
for a given key without knowing what
value it maps to.
Collection co...
Python “raise from” usage
...ed
A similar mechanism works implicitly if an exception is raised inside an exception handler or a finally clause: the previous exception is then attached as the new exception’s __context__ attribute:
>>> try:
... print(1 / 0)
... except:
... raise RuntimeError("Something b...
Creating a new column based on if-elif-else condition
...
To formalize some of the approaches laid out above:
Create a function that operates on the rows of your dataframe like so:
def f(row):
if row['A'] == row['B']:
val = 0
elif row['A'] > row['B']:
val = 1
else:
val = -1
r...
How can I add remote repositories in Mercurial?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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static allocation in java - heap, stack and permanent generation
... random web articles is not a sound academic research technique.
Having said that ...
... my question is Sun specific.
At the time this question was asked, Sun Microsystems had ceased to exist. The question was therefore Oracle specific. AFAIK, all current (non-research) 3rd-party JVM imple...