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What is Rack middleware?
...rocessing better?
Performance & Usage Monitoring: what stats can I get from the request and response?
Execution: actually handle the request and provide a response.
Being able to separate the different stages (and optionally include them) is a great help in developing well structured applicati...
Conventions for exceptions or error codes
...I prefer exceptions because
they interupt the flow of logic
they benefit from class hierarchy which gives more features/functionality
when used properly can represent a wide range of errors (e.g. an InvalidMethodCallException is also a LogicException, as both occur when there's a bug in your code ...
Iterating through a JSON object
...ortunately it's a little hard to explain all the ways you can extract data from lists and dictionaries and strings in the 600 characters you can put in a comment. I already said you should index the dict to get at the value associated with a key. I'm not sure what you want to iterate over. Learning ...
Property getters and setters
...roperties; such properties do not have storage in the instance - the value from the getter is meant to be computed from other instance properties. In your case, there is no x to be assigned.
Explicitly: "How can I do this without explicit backing ivars". You can't - you'll need something to backu...
Open another application from your own (intent)
...te an intent with action=MAIN and category=LAUNCHER
Get the PackageManager from the current context using context.getPackageManager
packageManager.queryIntentActivity(<intent>, 0) where intent has category=LAUNCHER, action=MAIN or packageManager.resolveActivity(<intent>, 0) to get the fi...
Android Studio - How to increase Allocated Heap Size
...above, you can create/edit this file by accessing "Edit Custom VM Options" from the Help menu.
-------ORIGINAL ANSWER--------
Open file located at
/Applications/Android\ Studio.app/Contents/bin/studio.vmoptions
Change the content to
-Xms128m
-Xmx4096m
-XX:MaxPermSize=1024m
-XX:ReservedCodeCacheSize...
Spring Cache @Cacheable - not working while calling from another method of the same bean
Spring cache is not working when calling cached method from another method of the same bean.
9 Answers
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Why are function pointers and data pointers incompatible in C/C++?
...about pointers to functions in the last paragraph. They might be different from other pointers, and the committee is aware of that.
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What is the difference between @PathParam and @QueryParam
... resource class field, or resource class bean property.
URI : users/query?from=100
@Path("/users")
public class UserService {
@GET
@Path("/query")
public Response getUsers(
@QueryParam("from") int from){
}}
To achieve the same using Spring, you can use
@PathVariable(Spring...
How to add hours to current time in python
...
from datetime import datetime, timedelta
nine_hours_from_now = datetime.now() + timedelta(hours=9)
#datetime.datetime(2012, 12, 3, 23, 24, 31, 774118)
And then use string formatting to get the relevant pieces:
>>>...