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How do you configure logging in Hibernate 4 to use SLF4J
...er findProvider() {
// Since the impl classes refer to the back-end frameworks directly, if this classloader can't find the target
// log classes, then it doesn't really matter if they're possibly available from the TCCL because we won't be
// able to find it anyway
final ClassLoader...
How Drupal works? [closed]
Could someone provide a architectural overview of the Drupal 7 control flow? Perhaps in the sense of a flowchart about how a page gets generated. What additional resources would you suggest consulting with regards to how Drupal works?
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Generate a heatmap in MatPlotLib using a scatter data set
...py as np
import numpy.random
import matplotlib.pyplot as plt
# Generate some test data
x = np.random.randn(8873)
y = np.random.randn(8873)
heatmap, xedges, yedges = np.histogram2d(x, y, bins=50)
extent = [xedges[0], xedges[-1], yedges[0], yedges[-1]]
plt.clf()
plt.imshow(heatmap.T, extent=extent,...
What are the applications of binary trees?
...ng what the particular applications of binary trees are. Could you give some real examples?
17 Answers
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Where to use EJB 3.1 and CDI?
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Yes, you can freely mix both CDI and EJB and achieve some great results. It sounds like you are using @WebService and @Schedule, which are good reasons for adding EJB to the mix.
There's a lot of confusion out there, so here is some general information on EJB and CDI as they re...
How to find time complexity of an algorithm
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How to find time complexity of an algorithm
You add up how many machine instructions it will execute as a function of the size of its input, and then simplify the expression to the largest (when N is very large) term and can include any...
Should services always return DTOs, or can they also return domain models?
..., it encapsulates the domain. In other words it protects the domain.
Sometimes service needs to return data object that wasn't defined in the domain
Can you provide an example of this data object?
If we should strictly stick to DTOs, should they be defined in service layer?
Yes, because ...
Should I use Java date and time classes or go with a 3rd party library like Joda Time?
...m all over the world. One type of data which must be stored is dates and times.
5 Answers
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How to configure MongoDB Java driver MongoOptions for production use?
...s for configuring MongoOptions for the MongoDB Java driver and I haven't come up with much other than the API. This search started after I ran into the "com.mongodb.DBPortPool$SemaphoresOut: Out of semaphores to get db
connection" error and by increasing the connections/multiplier I was able to sol...
When to use next() and return next() in Node.js
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Some people always write return next() is to ensure that the execution stops after triggering the callback.
If you don't do it, you risk triggering the callback a second time later, which usually has devastating results. Your ...