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Closed 10 years ago.
I'm new with Google Web Toolkit and i have some questions about the tool.
First of all, what i have to know to correctly program for GWT? It's ok if i use the GWT Designer to make the GUI?
Second, how i persists all the data i want to store? Use JPA/Hibernate + SQL Database? Or it's better to use AppEngine?
I'm with a great doubt how i get the data from Database to populate fields and tables on client-side.
and Last, i know a bit of Swing, so, GWT is the same? (Except Client - Server concept) ?
That's my questions. Well, thanks in advance.
First of all, what i have to know to correctly program for GWT? It's ok if i use the GWT Designer to make the GUI?
Ok.
Second, how i persists all the data i want to store? Use JPA/Hibernate + SQL Database? Or it's better to use AppEngine?
It's your choice. AppEngine has it's limitations. For example, it scales but may not be the best choice for multi-player games if you need data updated very often and quickly. It really depends on your need/design.
If you do go with AppEngine, my experience with JPA was a headache. Objectify is much easier and the way I would go.
Last, i know a bit of Swing, so, GWT is the same? (Except Client - Server concept) ?
I guess they share the concept of using listeners/handlers for events. They are not the same though.
Related
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Closed 9 years ago.
Note: I have been out of touch with the PHP world for quite a long time. I am primarily a Python developer.
I have to build a small app in PHP5. Please suggest me a lightweight framework which:
Has MS SQL Server Support that runs on Linux as the app will be running on Ubuntu.
Is fast to learn, use and setup.
Performance is not a critical issue. As the app will be used on a private LAN by about 10 people for data entry mainly.
Suggestion about a templating engines will also be appreciated
Regards
Let's kill off the easy question first - by tempting, I'm assuming you mean templating. If so, Smarty is usually a very good contender as it is simple to learn and very powerful.
Now, for the framework. A wide variety of PHP frameworks have switched to PDO for SQL requests, which means that most of them will easily accomodate MS SQL. CodeIgniter does, so does CakePHP last time I checked.
Ultimately, pick what you know rather than picking something that looks fancy, unless you need the extra features. The learning curve will be smaller.
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Closed 10 years ago.
I am planning to use IndexedDB to support offline database but having trouble in performing queries and understanding the underlying mechanics of it. Is there a indexeddb wrapper that can enable me to query against indexeddb using SQL queries? Thanks!
Check out my wrapper library https://bitbucket.org/ytkyaw/ydn-db It will support limited SQL like appengine GQL.
IndexedDB API do not have relational concept nor SQL processor, but relationship is basically relating two object stores by a pair of respective fields. Handling relationship directly is often more efficient than declarative SQL in javascript usage. With declarative SQL language, you tell everything about what you want and wait for the result. OK for backend, not ideal for frontend.
With IndexedDB you don't wait, just open stream of records (cursor) and decide what to do next in each iteration. It is more flexible and much faster. Check out ydn.db.ICursor for these concept.
Currently, the library is very active stage and not ready thought.
As far as I know, there isn't. But I have a wrapper that is using a LINQ interface to query on the indexeddb: linq2indexeddb.
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Closed 10 years ago.
I would like to know if there are any tool to design a layout of passbook.
I didn't find any in xcode. Experienced designer can read and write a simple json but it is much better if there are any tool help to speed up this design process.
The Pass Designer is available at http://create.passkit.com
You can use it for free to easily design and create Passes that appear in the web interface exactly as they appear in Passbook.
And with a Developer Account you can quickly build your own income stream! Details to be announced soon.
You need to understand the Passbook app, as you are limited to what you can change from Apple.
There is a Session Video called
Session 301 - Introducing Passbook, Part 1
you can see it in a web browser as well.
This will explain you the model and what can you change as types, colors, texts.
If you're only trying to find a PhotoShop file to "play around", give Takahashi Alex it's own Passbook GUI PSD a go.
I'm one of the creator of Passdock, that is exactly what you are looking for. It's a web design tool that let you create a Pass without knowing anything of the JSON structure. It's free and you can also use it to delivery the passes to the devices.
I'll be happy to help you if you have any question.
You can make passbook file via http://passsource.com .
In this site, you can test customization of passbook.
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Closed 10 years ago.
Note: Although this question probably does not fit in with SO's usual programming questions, out of StackOverflow, ServerFault, SuperUser and Programmer's Exchange, only SO has any questions that make mention of this software, which is why I decided to post here.
I used to use Anjlab's open source SQL Profiler tool, and found it to be invaluable. Unfortunately, it looks like the software has been converted to a paid version, with the all access to the open source version completely removed. Since this software is mentioned several times in questions here on SO, I was wondering if anyone still has a copy of the old, free, open source version and would be willing to share it?
I've managed to find the following:
SqlExpressProfiler-1.2.1812.13.zip <-- You have to pay to use the performance dashboard.
SqlExpressProfiler-1.2.1708.7.zip
SqlExpressProfiler-1.2.1708.7.zip
SqlExpressProfiler.1.2.1624.78.zip
SqlExpressProfiler-1.1.1423.75.zip
I'll be testing them out and eliminating the dud ones.
Here is a simple alternative if you need just a monitoring tool for queries:
http://expressprofiler.codeplex.com/
I hope it won't disappear soon.
I'm currently using it with SQL Server Express 2012 to monitor queries form my NHibernate applications (didn't want to add log4net just for this purpose and show_sql outputs only to console window which I don't have in my WCF service).
Really nice and stable utility. I find it much easier to use than MS SQL Profiler which needs various settings, trace profiles for various server versions and what not. Express Profiler - just launch, hit Run, and all the T-SQL and sp_execute queries are displayed.
It's open source, you can add even more features if you wish. I guess, Clear button would be useful because now you have to Stop and Run again to clear the list.
Here's a link. Use at your own risk.
You could also do a search for SqlExpressProfiler-0.1.1094.67.zip
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Closed 11 years ago.
I'm a java developer, currently starting developing a hospital management system that will server patients, doctors, accountant, .... etc the system is really huge that may have 900,000 records/day, data is really growing so fast, for that i'm confusing in which database to use since i have the following options: (Percona Server(Mysql), Oracle, SQLServer), since the application will run on network with average of 45 online users.
I hope to find a good answers here.
Thanks in advance
If you have been working with MySQL for 6 years then stick with it!
You don't want to add the burden of learning another database as well as having to develop your application.
If you are unsure if MySQL is up to the job then run some tests. Write an app that runs multiple threads inserting 1M rows and see if your servers can handle it.
I'm guessing the brand of the database you choose will be less important than the performance of the platform (machines) it is running on.
There is no good or bad answer to this question. Basically it is as good as the DBA knowns to manage it.
If asking this question it would be wise to group a team of people well known with various systems to find out the best practice. To answer such a case, even more with very sensitive data, it is not just a simple solution which will do the trick. A thorough process of decision making is very important. Not only from a technical but also from a security and business side.
As per as think your database is large you can go with oracle.but the decision also depends on the expertise of people working with you and availability of resources.