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commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
Sometimes, when using <h:commandLink> , <h:commandButton> or <f:ajax> , the action , actionListener or listener method associated with the tag are simply not being invoked. Or, the bean properties are not updated with submitted UIInput values.
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Is there any performance gain in indexing a boolean field?
... think about it like a book. If there were only 3 kinds of words in a book and you index all of them, you would have the same number of index pages as normal pages.
There would be a performance gain if there are relatively few records of one value. For example, if you have 1000 records and 10 of t...
How do I get the width and height of a HTML5 canvas?
How can i get the width and height of the canvas element in JavaScript?
8 Answers
8
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What is the difference between OpenID and SAML?
What is the difference between OpenID and SAML?
4 Answers
4
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What is the difference between a field and a property?
In C#, what makes a field different from a property, and when should a field be used instead of a property?
32 Answers
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What are the dark corners of Vim your mom never told you about? [closed]
... questions where people talk about common tricks, notably " Vim+ctags tips and tricks ".
70 Answers
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地图组件（高德地图） · App Inventor 2 中文网
...r drags it.
LongClick()
The LongClick event runs when the user presses and holds the 标记 and then releases it.
This event will only trigger if Draggable is 假 because it
uses the same gesture as StartDrag.
StartDrag()
The StartDrag event runs when the user presses and holds the 标记 ...
Difference Between One-to-Many, Many-to-One and Many-to-Many?
... so this is probably a trivial question but I'm having trouble visualizing and understanding the differences and when to use each. I'm also a little unclear as to how concepts like uni-directional and bi-directional mappings affect the one-to-many/many-to-many relationships. I'm using Hibernate righ...
Creating an API for mobile applications - Authentication and Authorization
...he initial/primary purpose will be for consumption by mobile apps (iPhone, Android, Symbian, etc). I've been looking into different mechanisms for authentication and authorization for web-based APIs (by studying other implementations). I've got my head wrapped around most of the fundamental concep...
Activity restart on rotation Android
In my Android application, when I rotate the device (slide out the keyboard) then my Activity is restarted ( onCreate is called). Now, this is probably how it's supposed to be, but I do a lot of initial setting up in the onCreate method, so I need either:
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