Questions tagged [invalidation]
568 questions
14
votes
1 answer
invalidate() inside of a thread android app
I'm new to programming androids but I have quite a bit of experience programming blackberries.
I created an app that has an activity class (main.java) and a view class (game.java).
Inside the view class I have some bitmaps being drawn to the…
Dave
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14
votes
2 answers
How to validate/invalidate sessions jsp/servlets?
I opened the session in my servlet when the user performed a successful login:
HttpSession session = request.getSession(true);
session.setAttribute("name", name);
then I wrote in the logout.jsp to terminate the…
Noah Martin
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13
votes
3 answers
Why session is not null after session.invalidate() in JAVA?
I am facing very strange problem while developing JavaEE WEB Application.
Even after invalidating the HttpSession using session.invalidate();, I am not getting session null. There is a case where I have one statement in execution like below after…
Vishal Zanzrukia
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11
votes
2 answers
Invalidating JPA EntityManager session
A project I am working on uses Spring 2.5 & JPA with Hibernate as a provider.
My DAO classes extend JpaDaoSupport, so I get my JpaTemplate using the getJpaTemplate() method.
The back-end database can get changed either by my application, or a…
dasp
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11
votes
2 answers
std::list<>::splice invalidates iterators. Rationale?
I wonder what is the rationale behind making std::list<>::splice to invalidate the iterators that refer to the subsequence being spliced into the new container. This looks kinda illogical to me, especially in light of standard std::container::swap…
AnT stands with Russia
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10
votes
4 answers
Avoiding iterator invalidation using indices, maintaining clean interface
I have created a MemoryManager class which is basically a wrapper around two vectors of pointers that manage lifetime of heap-allocated objects.
One vector stores the "alive" objects, the other one stores the object that will be added on next…
Vittorio Romeo
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10
votes
2 answers
Android: invalidate(dirty)
It seems like Android really doesn't like invalidate (Rect dirty), which is used to invalidate only part of a canvas. When I invalidate part of a canvas (shown in green below) and a ToggleButton outside of the canvas needs to be redrawn at the same…
1''
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9
votes
3 answers
NSTimer disables dealloc in UIView
@interface someview:UIView{
NSTimer* timer;
}
@end
@implementation someview
-(void)dealloc{
NSLog(@"dealloc someview");
[timer invalidate];
timer = nil;
}
-(void)runTimer{
//
}
-(void)someMethod{
timer = [NSTimer…
ssj
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9
votes
3 answers
How to properly invalidate JSP session?
So here is the problem. When a user logs out of my website, they can still hit the back button and continue using the site. To keep track of whether the user is logged in or not, I created a session attribute "isActive". The attribute is set to true…
Morglor
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9
votes
8 answers
Update existing Preference-item in a PreferenceActivity upon returning from a (sub)PreferenceScreen
I have a PreferenceActivity with a bunch of (Sub)PreferenceScreens. Each such (Sub)PreferenceScreen represents an account and has the account-username as its title.
PreferenceScreen root = mgr.createPreferenceScreen(this);
for (MyAccountClass…
aioobe
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8
votes
1 answer
How to update Android Views upon modifications?
I have some methods in my View that modify some of the shapes that are drawn when called. In Java in order to make sure the component is updated I would call repaint(). Is there something that will make sure my view is updated correctly?
I had read…
StartingGroovy
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8
votes
1 answer
Why Is Custom View not Invalidating?
Im a noob to android development and I am having problems invalidating a view. I am using this tutorial and have no issues implementing it. However, when I change the background of the view, it still responds as if the previous background is still…
B. Money
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7
votes
2 answers
Swift - The certificate for this server is invalid
How can I fix this on iOS using Swift? When I'm making a server request I get the following error:
The certificate for this server is invalid. You might be connecting to a server that is pretending to be “...” which could put your confidential…
SwiftiSwift
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7
votes
0 answers
How to abandon (invalidate without saving) a cache line on x86_64?
As I understand, _mm_clflush() / _mm_clflushopt() invalidates a cache line while saving it to memory if it has been changed. Is there a way to simply abandon a cache line, without saving to memory any changes made to it?
A use case is before freeing…
Serge Rogatch
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7
votes
3 answers
How does ImageView just redraw part of its content when invalidate(Rect) is called?
I am new to Android development, just reading docs and trying the
APIs. I am quit confused how ImageView managed to draw just a part of
its content after an invalidate(Rect) invocation.
I've checked ImageView.java, found no other drawing method…
imax366
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