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How to choose the right bean scope?
...sent back to the client. If you place a managed bean into request scope, a new instance is created with each request. It is worth considering request scope if you are concerned about the cost of session scope storage.
5. @javax.faces.flow.FlowScoped: The Flow scope persists as long as the Flow live...
How does the getView() method work when creating your own custom adapter?
...ew is scrolled so that is no longer visible, it can be used for one of the new Views appearing. This reused View is the convertView. If this is null it means that there is no recycled View and we have to create a new one, otherwise we should use it to avoid creating a new.
3: The parent is provided...
SQL exclude a column using SELECT * [except columnA] FROM tableA?
...able or view in SSMS like this:
Then you will get whole select query in New Query Editor Window then remove unwanted column like this:
Done
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How do I count the number of occurrences of a char in a String?
...se) = " + java8Case2);
9) Using StringTokenizer
int stringTokenizer = new StringTokenizer(" " +testString + " ", ".").countTokens()-1;
System.out.println("stringTokenizer = " + stringTokenizer);
From comment: Be carefull for the StringTokenizer, for a.b.c.d it will work but for a...b.c....d o...
NSNotificationCenter addObserver in Swift
...efaultCenter().postNotificationName(notificationIdentifier, object: nil)
New Swift 3.0 usage:
// Define identifier
let notificationName = Notification.Name("NotificationIdentifier")
// Register to receive notification
NotificationCenter.default.addObserver(self, selector: #selector(YourClassName...
Android: AsyncTask vs Service
...best bet. Examples of this include playing music, continually checking for new data, etc.
Also, as Sherif already said, services do not necessarily run off of the UI thread.
For the most part, Services are for when you want to run code even when your application's Activity isn't open. AsyncTasks a...
How can I break up this long line in Python?
...his is often my favorite, though its behavior is slightly different as the newline and any leading whitespace on subsequent lines will show up in your final string. You can eliminate the newline with an escaping backslash.
"""This is the first line of my text \
which will be joined to a second."...
GROUP_CONCAT comma separator - MySQL
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f7691816%2fgroup-concat-comma-separator-mysql%23new-answer', 'question_page');
}
);
...
send Content-Type: application/json post with node.js
...l = function(e) {
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
...
LINQ Group By into a Dictionary Object
...ing worked for me.
var temp = ctx.Set<DbTable>()
.GroupBy(g => new { g.id })
.ToDictionary(d => d.Key.id);
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