godown | Distributed , fault-tolerant key-value storage written in go | Architecture library
kandi X-RAY | godown Summary
kandi X-RAY | godown Summary
A simple, distributed, fault-tolerant key-value storage inspired by Redis. It uses Raft protocotol as consensus algorithm. It supports the following data structures: String, Bitmap, Map, List.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of godown
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QUESTION
I have Java service what creates Menu tree with all children. It works perfectly for Menu. I want to rewrite with .Net5 but it's difficult for me.
...ANSWER
Answered 2021-May-07 at 13:53From a brief glance at Stream
in Java, it looks like that is basically their implementation of IEnumerable
and LINQ in C#. Essentially it is a toolset to do lazy evaluations over collections. Below is my best guess of what you are needing in C#
QUESTION
I have a MainFooter
components that contains the footer and mini player which animates to full-view when clicked. I have a problem that whenever we click on one of the footer Tabs, the player maximizes and then got stuck there only, being unresponsive.
Also the down arrow icon inside player when clicked do not minimizes it, neither clicking on MiniPlayer maximizes it, but we can maximizes MiniPlayer by clicking and dragging it to full-view and same for maximized Player.
Here is the MainFooter
component:
ANSWER
Answered 2021-Apr-14 at 11:57It was because storing animated values as new values, so whenever; migrated to another footer Tab, the states were lost due to re-render, and the player was coming back to it's original state (up). TO fix this wrap animation values inside useRef()
and then use them:
QUESTION
This is my current table data:
Godown_Column Product_Column Quantity Godown 1 Product 1 10 Godown 1 Product 2 20 Godown 2 Product 3 30 Godown 3 Product 3 40Here, Godowns_Columns
has unlimited number of rows with different godowns.
How do I write a SQL query to get this result:
Product_Col Godown 1 Godown 2 Godown 3 Product 1 10 Product 2 20 Product 3 30 40 ...ANSWER
Answered 2021-Apr-05 at 07:01WITH GODOWNS(Godown_Column, Product_Column, Quantity) AS
(
SELECT 'Godown 1', 'Product 1', 10 UNION ALL
SELECT 'Godown 1', 'Product 2', 20 UNION ALL
SELECT 'Godown 2', 'Product 3', 30 UNION ALL
SELECT 'Godown 3', 'Product 3', 40
)
SELECT D.Product_Column,
MAX(CASE WHEN Godown_Column='Godown 1' THEN QUANTITY ELSE 0 END)AS GODOWN_1,
MAX(CASE WHEN Godown_Column='Godown 2' THEN QUANTITY ELSE 0 END)AS GODOWN_2,
MAX(CASE WHEN Godown_Column='Godown 3' THEN QUANTITY ELSE 0 END)AS GODOWN_3
FROM GODOWNS AS D
GROUP BY D.Product_Column
QUESTION
Using ReactJS, I am trying to make a second (smaller) navbar the same way Airtable has done on their product page. My first navbar is at the top, and turns dark from transparent once I scroll. The second bar (colored purple in the screenshot to easily see) is currently behind the first navbar when I would like it to sit right underneath the header background image.
First (main) Navbar - "Header.js"
...ANSWER
Answered 2021-Mar-16 at 15:18EDIT
This is the only solution I have found...
PS:
1/ Use position: "fixed"
instead of position: "sticky"
2/ There are other modifications to do... (add scroll listener,...)
Header.js
QUESTION
I'm doing JAVA tasks from this website https://www.testdome.com/questions/java/route-planner/41102
and got stuck on ArrayIndexOutOfBoundsException
error. When you debug code I'll get to finish, but right after that you will get array index is out of bounds. If you open website you will see full task with picture for better understanding. What am I doing wrong?
ANSWER
Answered 2020-Oct-09 at 06:43routeExists()
needs to be a recursive method, i.e. a method that calls itself. When you write a recursive method you first need to write the terminating condition, i.e. if the condition is true then the method does not call itself. If the condition is false then the method should call itself but with different values for the method parameters.
In any method in java, even regular, non-recursive methods, you should always make sure that the method parameters are valid. Hence you need to first check that toRow
and toColumn
are valid.
You should think of the method parameters fromRow
and fromColumn
as the indexes of the cell in mapMatrix
that you are currently in, and not where you started the matrix traversal from. Of-course, in the first call to method routeExists()
, the values of parameters fromRow
and fromColumn
are the indexes of the start of the route.
There are five terminating conditions for method routeExists()
.
- If
mapMatrix[toRow][toColumn]
is false then a route does not exist, so the method must return false. - If
fromRow
is not a valid index formapMatrix
then the method must return false. Using your example, iffromRow
equals 3 then the method must return false. - If
fromRow
is valid, then iffromColumn
is not valid then the method must return false. - If both
fromRow
andfromColumn
are valid, then ifmapMatrix[fromRow][fromColumn]
is false, the method must return false. - If
mapMatrix[toRow][toColumn]
is true then iffromRow
equalstoRow
andfromColumn
equalstoColumn
, that means you have reached the destination. In this case the method must return true.
If none of the above terminating conditions are met, then you need to progress to the next cell in mapMatrix
and continue checking whether a route exists. In the code below, I arbitrarily decided to progress to the next row. If progressing to the next row does not find a route, I check the next column. Note that the order is not important. You can first move to the next column and after that move to the next row.
Here is the code.
QUESTION
I am using C# WinForm, and I have a RichTextBox that I am trying to make look like a C# script.
Means when using specific words, I want them to be colored. When they edit the word by changing it, I want it to go back to be black.
My approach works, but it really messy and cause bugs when the a scroll option is created and needed to be used to see the code below. (When typing, pretty much the richtextbox jumps up and down without stop)
...ANSWER
Answered 2020-Sep-07 at 15:15I refactored your code a little to hopefully demonstrate a better approach to colouring the text. It is also not optimal to instantiate your string arrays every time you fire the TextChanged
event.
Updated:The idea is to build up a word buffer that will be matched with your set of words when typing.
The buffer records each key and if it The buffer has some additional bugs, with recording key press values and not removing recorded chars if you hit backspace etc...IsLetterOrDigit
it adds it to the StringBuilder
buffer.
Instead of the word buffer, use RegEx to match any of the words in your reserve word list. Build up the reserve word RegEx so you end up with something like \b(word|word2|word3....)\b
This is done in the code in the BuildRegExPattern(..)
method.
Once you hit any key other than a letter or number the buffer is checked for content and if the content matches a word then only the text right before the cursor in the ScriptRichTextBox.Text
is checked and changed.
Remove the .(dots) from the reserve words as this just complicates the matching criteria. The RegEx in the built up patters will match the words exactly, so if you type something like FARRIGHT
or cms
the words will not partially change colour.
As an extra I also covered the paste process pressing Ctrl+V
because it is a bit of a pain in WinForms and will probably happen quite often.
There are older questions eg. this one that cover the scrolling behaviour, where it shows how to interop by adding the [System.Runtime.InteropServices.DllImport("user32.dll")]
attribute, but it can be done without it.
To prevent all the scroll jumping you can make use of the .DefWndProc(msg) method on the form. this question pointed me towards the WM_SETREDRAW
property.
There is also this list of other properties that can be set.
The full implementation is this:
QUESTION
I have a "scroll down" button on my website, which, when pressed will take you down to a specified anchor point. I currently have this button set to fade in and out, but this causes issues with the overlay and appears jumpy, and I would like to have it so the opacity decreases gradually as you move nearer to the point.
I would like to implement something similar to this:
...ANSWER
Answered 2020-Aug-04 at 20:00You can compute the distance of: the distance of the element to scroll to from top (offsetTop)
and the top of the scroll bar's Y position. This way, the script can assess whether the top of the scroll bar's Y position has already passed the element to scroll to. This will work with your current circumstance since you scroll to the top most of the element.
QUESTION
Yesterday I`ve asked how may I handle keyboard input (with ScalaFX) in a functional manner. Thanks to @alfilercio help I came up with something like this:
...ANSWER
Answered 2020-May-18 at 12:13Personally I would assume that all Listener
s and Handler
s are by definition impure objects from outside of our pure world, so if I wanted to keep things pure, I would make them send commands as values through some IO.
QUESTION
ANSWER
Answered 2020-May-10 at 16:25OK, to recap, summarize and minimalize your code:
- You have three "windows" (don't use
if you don't submit anything to the server)
- The first tho have a button to go-to the next window (at least as far as I can see)
- You need a
.is-active
class to style the currently active "window":
QUESTION
I'm trying to make a simple tool-path program with directional buttons. It works, but sometimes releasing the button is ineffective and the turtle stops just clicking the "Home" button. Else it just runs continuously as if I did not release the button.
Here is the code:
...ANSWER
Answered 2020-Feb-15 at 22:25I tried to make your code work with your jobid
model, and although I could improve it, the flaw eventually surfaced -- I can't say exactly why. You have to consider that, in your implementation, jobid
doesn't always represent a pending job, it could be one that has fired successfuly.
Another issue to consider is the timing of:
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