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Describe the architecture you use for Java web applications? [closed]
...pring
DAO's : Ibatis
Database : Oracle
We use Sping transaction support, and start transactions upon entering the service layer, propagating down to the DAO call's. The Service layer has the most bussines model knowledge, and the DAO's do relatively simple CRUD work.
Some more complicated query s...
Free XML Formatting tool [closed]
...free XML formatting (indent) tool available where I can past an XML string and have it formatted so I can read the XML document correctly?
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Differences between action and actionListener
What is the difference between action and actionListener , and when should I use action versus actionListener ?
4 Ans...
Sharing a result queue among several processes
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Try using multiprocessing.Manager to manage your queue and to also make it accessible to different workers.
import multiprocessing
def worker(name, que):
que.put("%d is done" % name)
if __name__ == '__main__':
pool = multiprocessing.Pool(processes=3)
m = multiproces...
Set Matplotlib colorbar size to match graph
...reate an axes on the right side of ax. The width of cax will be 5%
# of ax and the padding between cax and ax will be fixed at 0.05 inch.
divider = make_axes_locatable(ax)
cax = divider.append_axes("right", size="5%", pad=0.05)
plt.colorbar(im, cax=cax)
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nginx: send all requests to a single html page
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Note -- this will first check for the file requested, and if it's not there, it will serve base.html. So make sure that you've got no old extra files sitting around in your document root directory, or they'll get served directly if queried.
– Alex Howansky
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iPhone and OpenCV
...l port for the iPhone (iOS).
You can find all of OpenCV's releases here.
And find install instructions here:
Tutorials & introduction for the new version 3.x
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How do I create multiple submit buttons for the same form in Rails?
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You can create multiple submit buttons and provide a different value to each:
<% form_for(something) do |f| %>
..
<%= f.submit 'A' %>
<%= f.submit 'B' %>
..
<% end %>
This will output:
<input type="submit" value="A" i...
How to remove folders with a certain name
...gestion. Without this, find will still try to visit the now missing folder and will eventually exit with an error code, which can e.g. fail a Docker build.
– Czyzby
Mar 18 at 13:19
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Create Pandas DataFrame from a string
... to do this is to use StringIO.StringIO (python2) or io.StringIO (python3) and pass that to the pandas.read_csv function. E.g:
import sys
if sys.version_info[0] < 3:
from StringIO import StringIO
else:
from io import StringIO
import pandas as pd
TESTDATA = StringIO("""col1;col2;col3
...