sorted_long_set | 这是个节省内存的紧凑的map实现,功能类似于HashSet | Datepicker library

 by   xdc427 Java Version: Current License: MIT

kandi X-RAY | sorted_long_set Summary

kandi X-RAY | sorted_long_set Summary

sorted_long_set is a Java library typically used in User Interface, Datepicker applications. sorted_long_set has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.

这是个节省内存的紧凑的map实现,功能类似于HashSet.暂时适用于key为固定长度的map, 像long,int等。提供了add,remove,contain,size方法实现。目前主要场景是为了节省内 存,也是初衷,虽然也有不错的性能。 版本1是原始版本(sorted_long_set1),最初的想法是想用一个排序数组做,但是如果 数组大了,每次插入的移动次数会不可接受,这也是以后主要要解决的问题,这个版本的解决 方案是用两个排序数组,一个大的一个小的,先插入小的小的满了再合并到大的。那小的多大 合适,大的长为n,假设小的为m,那么考虑把小的m填满然后合并到大的用了多少移动次数,小 的填满最差用 m*m/2,合并到大的用 n + m,m << n 所以为n,总数为 m*m/2 + n,平均每个需要 (m*m/2 + n)/m = n/m + m/2 ,求最优值m = sqrt(2*n).那么最优平均移动次数为sqrt(2*n). 其他优化包括删除时只标记,以及一些数组扩容及缩小策略,在代码里有注释。 版本2是个实验版本(sorted_long_set2),考虑了用两组这样的结构会有什么效果。这时 每个大的长n/2,假设每个小的还是长m,把m填满还是需要 m*m/2,合并到大的需要 n/2 + m,m< 版本3暂时未实现(sorted_long_set3),这个版本要讨论用几组这样的结构可以达到最佳性 能。版本3将采用环形数组将每组结构连起来,这样方便在组与组之间移动少量数据来平衡而不 需要移动整个组的数据,这点最为关键。接下来还是计算最优值。数据总长度为n,组数为x,每组 带有的小排序数组长度为m, 每组内带有的大排序数组长度为n/x。把m填满最差用 m*m/2,合并到 组内大数组用 n/x + m,m << n/x 所以为 n/x,接下来还有一步,要把m平均到每个组,需要m*x/2 (这就是为什么用环型数组),总数为 m*m/2 + n/x + m*x/2 ,平均每个需要 m/2 + n/(m*x) x/2 ,求最优值m = power(n,1/3), x = power(n,1/3), 最优平均移动次数为 2*power(n,1/3). 在数据量大的情况性能会比前两个版本有量级提高,应该可以战胜HashSet。其实还有个大的提高, 前面两个版本由于块小,在数据扩大和缩小时会变慢,不那么均衡,版本3可以把组的扩大和缩小 分解到到后续一系列的操作中,以均衡性能。.
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            kandi-support Support

              sorted_long_set has a low active ecosystem.
              It has 3 star(s) with 0 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              sorted_long_set has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of sorted_long_set is current.

            kandi-Quality Quality

              sorted_long_set has no bugs reported.

            kandi-Security Security

              sorted_long_set has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              sorted_long_set is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              sorted_long_set releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed sorted_long_set and discovered the below as its top functions. This is intended to give you an instant insight into sorted_long_set implemented functionality, and help decide if they suit your requirements.
            • Main entry point
            • Reduces all elements in the cache
            • Add an item to the cache
            • Merge the cache
            • Randomly selected long
            • Copies a range of bytes from src to dst
            • Add an ID to the cache
            • Merge the keys
            • Dumps to stdout
            • Is the index deleted?
            • Random test
            • Printout to stdout
            • Main entry point
            • Performs a bit scan
            Get all kandi verified functions for this library.

            sorted_long_set Key Features

            No Key Features are available at this moment for sorted_long_set.

            sorted_long_set Examples and Code Snippets

            No Code Snippets are available at this moment for sorted_long_set.

            Community Discussions

            QUESTION

            Limiting Date Picker (from today) - HTML
            Asked 2022-Mar-25 at 13:32

            I have been looking around on this page (among other forums) in search of an answer for limiting a date picker to 14 days from the day a user accesses the page. Built into the date picker is an option for 'todays date' which is auto configured and sets the date option to todays DD/MM/YY so I gather this can be achieved. What I aim for is every date after 14 days from 'today' to be greyed out and not selectable. I could further develop this so that no dates prior to 'today' can also be selected, but achieving a limit of 14 days after 'today' would be great for now.

            I'm familiar with max-date and min-date which require a precise DD/MM/YY format setting boundaries between the listed dates. I require something like 'max-date: today + 14'

            ...

            ANSWER

            Answered 2022-Mar-24 at 11:58

            I require something like 'max-date: today + 14'

            This is basically your answer, i.e. "set the max attribute to today + 14 and the min attribute to today". Fairly straightforward to do in JavaScript:

            Source https://stackoverflow.com/questions/71601713

            QUESTION

            How to filter by date greater than in Material Table?
            Asked 2022-Feb-06 at 03:52

            How to filter by date greater than current value in Material table?

            This is what I managed so far, it's filtering by exact date and I need to filter all values which are >= that current value in table.

            ...

            ANSWER

            Answered 2022-Feb-06 at 03:52

            I managed to solve this without CustomDatePicker component, since material table has already built in date picker when field type:date is set.

            So what is needed is only function and to call it in Material Table:

            Source https://stackoverflow.com/questions/70849070

            QUESTION

            How can I clear MUI DatePicker input?
            Asked 2022-Feb-01 at 12:51

            I would like to add a 'clear' button to a DatePicker from @mui/lab (5.0.0-alpha.55).

            What I am attempting:

            • Store a date field in state, passed as the value prop to DatePicker
            • Change the date to null when desired to 'clear' the value & input

            The behaviour I observe:

            • If the date is valid, it works as expected, and the input is cleared
            • If the date is not valid, the error is cleared, but the invalid date still stays in the input.

            The rudimentary version I have attempted which shows the behaviour above can be seen here.

            If you input a partial date, then click clear, you can observe that the input does not get cleared.

            I would prefer to avoid a solution that involves changing the key, as that brings other issues, such as not respecting an external source changing the date to null, and needing additional hacks to respect the label transition when clearing the input.

            ...

            ANSWER

            Answered 2021-Nov-21 at 10:47

            My theory is that internally, DatePicker only updates the input value if it's different with the last valid value. Below is how the bug can occur:

            • You clear the DatePicker when there is a valid value (like the initial Date), the state is reset successfully at first (value=null, inputValue='')
            • You enter some invalid date. The state is now (value=Invalid Date, inputValue='invalid Text')
            • Because the current value is invalid, it does not count and the DatePicker references the last valid value instead which is null, then decide that the current value doesn't change and skip dispatching the new input value (value=null, inputValue='invalid Text').

            I'd classify this as a bug from MUI, you can create an issue on github if you want it to be fixed. In the meanwhile, you can fix the bug by applying this patch using patch-package:

            • Install patch-package: npm i patch-package
            • Add postinstall script in the package.json

            Source https://stackoverflow.com/questions/70041109

            QUESTION

            How to change the icon in MUI DatePicker?
            Asked 2022-Jan-20 at 14:39

            ANSWER

            Answered 2021-Oct-14 at 15:24

            The components prop of DatePicker lets you override the inner components including the OpenPickerIcon, so this is how you override it. For reference, see the full API of DatePicker here:

            Source https://stackoverflow.com/questions/69569223

            QUESTION

            Get selected date of persianDate
            Asked 2021-Dec-30 at 13:45

            With this code, I able to get selected date as unix. jsfiddle

            ...

            ANSWER

            Answered 2021-Dec-30 at 13:45

            You can do it by using getState method on persianDatepicker instance, like this:

            Source https://stackoverflow.com/questions/70532098

            QUESTION

            Angular Mat Datepicker - Apply styles dynamically
            Asked 2021-Dec-15 at 22:19

            I have a Datepicker component which contains a Material Datepicker. This component receives a datepickerConfig object describing how the Datepicker should be styled. For example, this object describes what level of shadow to apply, the focus styles, hover styles, etc.

            I'm quite new to Material styling so I'm wondering how I can apply these styles dynamically, during runtime?

            As an example, for the shadow, I have declared the following variables in my SCSS file:

            ...

            ANSWER

            Answered 2021-Dec-14 at 21:03

            You could use the [ngStyle] directive -- take this example which dynamically sets a width property based on a condition.

            Source https://stackoverflow.com/questions/70304732

            QUESTION

            Date Picker from Ng2 Bootstrap keep throwing error on unable to read getFullYear()
            Asked 2021-Dec-14 at 05:35

            I was having some problem when trying to disable dates using date picker from ng2-bootstrap. In my app.module.ts, I imported the library as such:

            ...

            ANSWER

            Answered 2021-Dec-14 at 04:15

            It seems the issue is that the datesDisabled configuration needs to be an array of Dates according to the docs. And you seem to have used dateDisabled (missing 's')

            so your template code should be changed with

            Source https://stackoverflow.com/questions/70343299

            QUESTION

            How to localize MUI(v5) date picker input or set a placeholder
            Asked 2021-Nov-25 at 15:36

            I have to use a MUI5 DesktopDatePicker as shown in the manual here https://mui.com/components/pickers/#react-components.

            When I clear the date selected, I see dd/mm/yyyy as placeholder as the input format of the DatePicker. I would like to see the placeholder based on the Localization set, e.g. gg/mm/aaaa for the Italian locale. Is this possible? Even setting a custom placeholder?

            Here's a Sandbox forked directly from the MUI5 demo.

            https://codesandbox.io/s/desktopdatepicker-jfqk7

            ...

            ANSWER

            Answered 2021-Nov-25 at 15:36

            You have to change the placeholder of the textfield on renderInput without overwriting the data on params.inputsProps. This would be your new DesktopDatePicker.

            Source https://stackoverflow.com/questions/69913097

            QUESTION

            React Testing Library: Unable to Change Material UI DatePicker Input Value
            Asked 2021-Nov-10 at 15:14

            I'm trying to change the value of the Material UI Datepicker Input with React Testing Library. But it doesn't seem to work with fireEvent.change().

            ...

            ANSWER

            Answered 2021-Aug-28 at 05:16

            DatePicker by default will open the calendar view and will not allow you to provide keyboard inputs . You need to use the KeyboardDatePicker instead .

            Source https://stackoverflow.com/questions/68955000

            QUESTION

            Material ui: How to change DatePicker text and calendar icon color?
            Asked 2021-Nov-04 at 21:15

            I am trying to change the Material UI DatePicker date text and calendar icon color.
            I tried to change it passing style to InputProps, but it worked only for removing border.
            Rather than that, nothing changes, I tried to apply style to theme.tsx, but it also didn't help. Any help will be appreciated.

            ...

            ANSWER

            Answered 2021-Nov-04 at 21:15

            Try to inspect element then you can see the styling of the inspected element. Inspect element is so useful.

            Source https://stackoverflow.com/questions/69836609

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install sorted_long_set

            You can download it from GitHub.
            You can use sorted_long_set like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the sorted_long_set component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

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            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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