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How to preserve insertion order in HashMap? [duplicate]
...en I iterate over the map, the data is returned in (often the same) random order. But the data was inserted in a specific order, and I need to preserve the insertion order. How can I do this?
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What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
...eType.REMOVE and orphanRemoval=true.
For orphan removal:
If you invoke setOrders(null), the related Order entities will be removed in db automatically.
For remove cascade:
If you invoke setOrders(null), the related Order entities will NOT be removed in db automatically.
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Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...不做修改表示使用[]中的默认值
先将mysql的lib目录加入 /etc/ld.so.conf，然后执行ldconfig命令使其生效，否则填完以下install配置后，会出现错误"bin/postconf: error while loading shared libraries: libmysqlclient.so.18: cannot open shared object file: No such f...
setuptools: package data folder location
...package_data, to avoid the problems described in samplebias answer, but in order to mantain the file structure you should add to your setup.py:
try:
os.symlink('../../data', 'src/mypackage/data')
setup(
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package_data = {'mypackage': ['data/*']}
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)
finally:
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How to stop and restart memcached server?
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Using root, try something like this:
/etc/init.d/memcached restart
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Favicon dimensions? [duplicate]
...supported by several files:
A favicon.ico icon.
Some other PNG icons.
In order to get the best results across desktop browsers (Windows/IE, MacOS/Safari, etc.), you need to combine both types of icons.
favicon.ico
Although all desktop browsers can deal with this icon, it is primarily for older ver...
UICollectionView inside a UITableViewCell — dynamic height?
... Here's what fixed it for me - in systemLayoutSizeFitting, reverse the order of what's shown in the answer currently, so that first collectionView.layoutIfNeeded() runs, then collectionView.frame = CGRect.init(origin: .zero, size: CGSize.init(width: targetSize.width, height: 1))
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Check if two lists are equal [duplicate]
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var a = ints1.SequenceEqual(ints2);
Or if you don't care about elements order use Enumerable.All method:
var a = ints1.All(ints2.Contains);
The second version also requires another check for Count because it would return true even if ints2 contains more elements than ints1. So the more correct...
Can I use my existing git repo with openshift?
...lias here:
git remote add openshift -f <openshift-git-repo-url>
In order to then be able to push the code from your local git repo to openshift you first have to merge your openshift repo with your local bitbucket clone. You do that by issuing locally:
git merge openshift/master -s recursiv...
What's the difference between IComparable & IEquatable interfaces?
...atable tests whether two objects are equal.
IComparable imposes a total ordering on the objects being compared.
For example, IEquatable would tell you that 5 is not equal to 7. IComparable would tell you that 5 comes before 7.
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