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What is the recommended way to delete a large number of items from DynamoDB?
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What I ideally want to do is call LogTable.DeleteItem(user_id) -
Without supplying the range, and have it delete everything for me.
An understandable request indeed; I can imagine advanced operations like these might get added over time by the AWS team (they have a history of st...
How can I detect the touch event of an UIImageView?
...swipeRight.direction = UISwipeGestureRecognizerDirectionRight;
[imgView_ addGestureRecognizer:swipeRight];
[swipeRight release];
UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc]
initWithTarget:self action:@selecto...
Open-sided Android stroke?
...two shapes, one of which with height 1dp placed at the bottom
optionscreen_bottomrectangle.xml:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- This is the line -->
<item>
<shape>
<solid android:color="#535353" />
&...
java.lang.OutOfMemoryError: Java heap space
...VM options on the Java website.
However, I would recommend profiling your application to find out why your heap size is being eaten. NetBeans has a very good profiler included with it. I believe it uses the jvisualvm under the hood. With a profiler, you can try to find where many objects are being ...
PostgreSQL ERROR: canceling statement due to conflict with recovery
... RDS instance, check http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.html
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Post parameter is always null
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The append = in front never ever worked for me, until I followed Jim's advice in his comment (not as a JSON object) and it worked. This is key! I really don't like how picky WebAPI is.
– gitsitgo
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Abstract functions in Swift Language
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This one seems to be the "official" way how Apple is handling abstract methods in UIKit.
Take a look at UITableViewController and the way it's working with UITableViewDelegate. One of the very first things you do, is to add a line: delegate = self. Well, that's exactly...
How to start new activity on button click
In an Android application, how do you start a new activity (GUI) when a button in another activity is clicked, and how do you pass data between these two activities?
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What is the exact meaning of IFS=$'\n'?
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From http://www.linuxtopia.org/online_books/bash_guide_for_beginners/sect_03_03.html:
Words in the form "$'STRING'" are
treated in a special way. The word
expands to a string, with
backslash-escaped characters replaced
as specified by the ANSI-C stan...
What's the fastest way to delete a large folder in Windows?
...lacing the folder names in quotes with your folder names:
rmdir /s /q "My Apps"
rmdir /s /q "My Documents"
rmdir /s /q "My Pictures"
rmdir /s /q "My Work Files"
2) save the batch file with a .bat extension (for example deletefiles.bat)
3) open a command prompt (Start > Run > Cmd) and ...