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Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...mary key combination (column 1 and column 2). Now, you have removed 5 rows from the table at some point of time. Now, if you try to add the same 10 rows again, while hibernate tries to persist the objects in database, 5 rows which were already removed will be added without errors. Now the remaining ...
Getting an element from a Set
... set should be all about. In my case, I'd like to get some complex object from a set by key (String). This String is encapsulated (and unique) to the object being mapped. In fact, the whole object 'revolves' around said key. Furthermore, the caller knows said String, but not the object itself; that...
Should we use Nexus or Artifactory for a Maven Repo?
...al sources but need only one or two entries in your settings.xml
Deploying from Maven works out of the box (no need for WebDAV hacks, etc).
it's free
You can redirect access paths (i.e. some broken pom.xml requires "a.b.c" from "xxx"). Instead of patching the POM, you can fix the bug in Nexus and re...
How to optimize for-comprehensions and loops in Scala?
...he smallest positive number that is evenly divisible by all of the numbers from 1 to 20?"
8 Answers
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Difference between Hashing a Password and Encrypting it
... silky: and how exactly are you going to get the original password back from your lousy hash function? I suggest you reread Dave's comment
– Vinko Vrsalovic
Sep 8 '09 at 6:28
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How do I create and read a value from cookie?
How can I create and read a value from a cookie in JavaScript?
19 Answers
19
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JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
...efore actually uploading it. The demo does neither. It simply takes a file from a file input and displays it the right way, when is this useful in the real world? When I parse my page and feed the URLs from the image tags into the loadImage library there is no exif data so can't do that. For the upl...
Deleting all files from a folder using PHP?
...ple I had a folder called `Temp' and I wanted to delete or flush all files from this folder using PHP. Could I do this?
17 ...
What is the difference between null and undefined in JavaScript?
...null;
alert(TestVar); //shows null
alert(typeof TestVar); //shows object
From the preceding examples, it is clear that undefined and null are two distinct types: undefined is a type itself (undefined) while null is an object.
null === undefined // false
null == undefined // true
null === null // ...
Windows batch file file download from a URL
I am trying to download a file from a website (ex. http://www.example.com/package.zip ) using a Windows batch file. I am getting an error code when I write the function below:
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