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What is the purpose of AsQueryable()?
... more easily test methods that will eventually be used on a non-enumerable based IQueryable.
You can write helper methods for manipulating collections that can apply to either in-memory sequences or external data sources. If you write your help methods to use IQueryable entirely you can just use As...
Should I store entire objects, or pointers to objects in containers?
... you're storing polymporhic objects you always need to use a collection of base class pointers.
That is if you plan on storing different derived types in your collection you must store pointers or get eaten by the slicing deamon.
...
Programmatically get own phone number in iOS
... What's the best reason you have seen for Apple disallowing permission-based access to the user's phone number? Apple already allows permission-based access to contacts, photos, location, and the user's camera and microphone. Why not the phone number? There must be a good reason, but it's not im...
Do unix timestamps change across timezones?
... in terms of calculating a year. Now you'd think a year would be measured based upon the location of the center (the core) of the earth, right? When the earth's core is back in the same location it was ~365 days ago, it has been a year. It isn't measured that way. It is measured by a specific lo...
PHP - include a php file and also send query parameters
I have to show a page from my php script based on certain conditions. I have an if condition and am doing an "include" if the condition is satisfied.
...
Difference between Apache CXF and Axis
...er things other than "check box features".
API - CXF pushes "standards based" API's (JAX-WS compliant) whereas Axis2 general goes toward proprietary things. That said, even CXF may require uses of proprietary API's to configure/control various things outside the JAX-WS spec. For REST, CXF a...
What exactly is Java EE?
...rnative to EJB2. But since EJB3 (Java EE 5), the EJB API was much improved based on lessons learnt from Spring. Since CDI (Java EE 6), there's not really a reason to look at again another framework like Spring to make the developers more easy as to developing among others the service layer.
Only whe...
What is JNDI? What is its basic use? When is it used?
...t way.
When it is used?
The most common use case is to set up a database connection pool on a Java EE application server. Any application that's deployed on that server can gain access to the connections they need using the JNDI name java:comp/env/FooBarPool without having to know the details...
How to access the ith column of a NumPy multidimensional array?
...is a view or a copy of another array you can do the following:
arr_c1_ref.base is arr # True
arr_c1_copy.base is arr # False
see ndarray.base.
Besides the obvious difference between the two (modifying arr_c1_ref will affect arr), the number of byte-steps for traversing each of them is differen...
How to save/restore serializable object to/from file?
...an hold in memory, you might want to switch to an object store (object database) instead of a file.
– Tezra
Jun 15 '17 at 17:39
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