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When should I use RequestFactory vs GWT-RPC?
I am trying to figure out if I should migrate my gwt-rpc calls to the new GWT2.1 RequestFactory cals.
8 Answers
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Do fragments really need an empty constructor?
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Yes they do.
You shouldn't really be overriding the constructor anyway. You should have a newInstance() static method defined and pass any parameters via arguments (bundle)
For example:
public static final MyFragment newInstance(int title, String messa...
Java ArrayList how to add elements at the beginning
...n element to the front of the list.
https://docs.oracle.com/javase/7/docs/api/java/util/LinkedList.html#addFirst(E)
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Count Rows in Doctrine QueryBuilder
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He accepted your answer so I guess all is well. I was under the impression that he only wanted a count without the overhead of actually retrieving the rows which my example shows. There is of course no reason why where conditions could not be added.
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Windows can't find the file on subprocess.call()
...ion:
"Prior to Python 3.5, these three functions comprised the high level API to subprocess. You can now use run() in many cases, but lots of existing code calls these functions."
SO: instead of subprocess.call use subprocess.run for Python 3.5 and above
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Get the current fragment object
...support library jar. It should not be considered as a part of the exported API.
– James Wald
Mar 25 '14 at 6:41
Heh, t...
Add Text on Image using PIL
...m PIL import ImageFont
from PIL import ImageDraw
img = Image.open("sample_in.jpg")
draw = ImageDraw.Draw(img)
# font = ImageFont.truetype(<font-file>, <font-size>)
font = ImageFont.truetype("sans-serif.ttf", 16)
# draw.text((x, y),"Sample Text",(r,g,b))
draw.text((0, 0),"Sample Text",(...
Drawing an image from a data URL to a canvas
...strDataURI;
The drawImage() method of HTML5 Canvas Context lets you copy all or a portion of an image (or canvas, or video) onto a canvas.
You might use it like so:
var myCanvas = document.getElementById('my_canvas_id');
var ctx = myCanvas.getContext('2d');
var img = new Image;
img.onload = func...
javascript: pause setTimeout();
...imilar to what you were suggesting in the question:
var Timer = function(callback, delay) {
var timerId, start, remaining = delay;
this.pause = function() {
window.clearTimeout(timerId);
remaining -= Date.now() - start;
};
this.resume = function() {
start =...
req.query and req.param in ExpressJS
...d: "5"}
req.param is a function that peels parameters out of the request. All of this can be found here.
UPDATE
If the verb is a POST and you are using bodyParser, then you should be able to get the form body in you function with req.body. That will be the parsed JS version of the POSTed form.
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