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What is the difference between DAO and Repository patterns?
...to entities would usually be tracked by separate UnitOfWork.
It does seem common to see implementations called a Repository that is really more of a DAO, and hence I think there is some confusion about the difference between them.
...
Is there a Java standard “both null or equal” static method?
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WPF TextBox won't fill in StackPanel
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Emacs: print key binding for a command or list all key bindings
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Ruby on Rails: getting the max value from a DB column
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Placing an image to the top right corner - CSS
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How to convert BigDecimal to Double in Java?
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How to run cron job every 2 hours
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Does “git fetch --tags” include “git fetch”?
... git fetch --tags fetches tags in addition to what are fetched by the same command line without the option.
See commit c5a84e9 by Michael Haggerty (mhagger):
Previously, fetch's "--tags" option was considered equivalent to specifying the refspec
refs/tags/*:refs/tags/*
on the command ...
What is the difference between a weak reference and an unowned reference?
... provide this benefit).
A weak reference allows the possibility of it to become nil (this happens automatically when the referenced object is deallocated), therefore the type of your property must be optional - so you, as a programmer, are obligated to check it before you use it (basically the compi...