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How to copy a java.util.List into another java.util.List
I have a List<SomeBean> that is populated from a Web Service. I want to copy/clone the contents of that list into an empty list of the same type. A Google search for copying a list suggested me to use Collections.copy() method. In all the examples I saw, the destination list was supposed t...
Can a foreign key be NULL and/or duplicate?
...do is allow nulls on the field that has the FK. The null value is separate from the idea of it being an FK.
Whether it is unique or not unique relates to whether the table has a one-one or a one-many relationship to the parent table. Now if you have a one-one relationship, it is possible that you...
Temporarily put away uncommitted changes in Subversion (a la “git-stash”)
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When I've got uncommitted changes from one task in my working copy and I need to switch to another task, I do one of two things:
Check out a new working copy for the second task.
or
Start a branch:
workingcopy$ svn copy CURRENT_URL_OF_WORKING_COPY SOME_BR...
Force to open “Save As…” popup open at text link click for PDF in HTML
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From an answer to Force a browser to save file as after clicking link:
<a href="path/to/file" download>Click here to download</a>
share...
Dynamic instantiation from string name of a class in dynamically imported module?
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module = __import__(module, fromlist=[name]) only worked for me.
– umpirsky
Jan 9 '12 at 18:18
16
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PostgreSQL: Is it better to use multiple databases with one schema each, or one database with multip
... @NeilMcGuigan: Interestingly, that seems to be the opposite conclusion from kquinn's (accepted) answer.
– carbocation
Mar 17 '15 at 17:54
8
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SVN 405 Method Not Allowed
...an issue with this and my solution ended up removing the folder completely from my local copy as well as the server copy. I can do updates and commits without problems on any other file or folder, but if I try to create a folder with the same name, add, and commit, it gives me the following error:
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wkhtmltopdf: cannot connect to X server
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or try this (from http://drupal.org/node/870058)
Download wkhtmltopdf. Or better install it with a package manager:
sudo apt-get install wkhtmltopdf
Extract it and move it to /usr/local/bin/
Rename it to wkhtmltopdf so that now you ha...
When to use NSInteger vs. int
...r ) when passing a value as an argument to a function or returning a value from a function.
8 Answers
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jQuery checkbox checked state changed event
...). I thought you had to use the change event if you want to detect changes from the keyboard (tabbing, hitting space), but surprisingly, click also detects changes that aren't from a mouse click, not sure if it's a jQuery thing, jsfiddle.net/mendesjuan/E39sz
– Juan Mendes
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