DID YOU KNOW?? - ABOUT DATE TIME CONVERTERS??

Hi All,
DID YOU KNOW??
That the Creator IDE provides a set of converters that you can use to convert component data. If your input field is for numbers, then you most likely need a converter. Converters are also good for formatting dates, times, and currency values. The standard converters, which you can use are located in the Converters section of the Components Palette.
The Date Time Converter
A Date Time Converter Converts between java.lang.String values in your component properties and data types of java.util.Date. The conversion usually applies to the property of a component used to display values and to pick up values entered by users, such as the text property of a Text Field component.
An example is binding a JavaServer Faces component to to a database column of type DATE. When you bind a component, the IDE normally identifies the data type for you and sets the appropriate converter when you establish a binding to the value property. However, you can also add this converter manually by setting the component's converter property.
* Note: If you are using an Oracle database, use the SQL Timestamp converter instead.
Learn more :-
JDBC Type Conversions
http://developers.sun.com/prodtech/javatools/jscreator/reference/docs/help/2update1/connect_data/jdbc_type_conversions.html
Using Converters
http://developers.sun.com/prodtech/javatools/jscreator/learning/tutorials/2/converters.html
We would like to know the following from you :-
1) Why and How are you using Converters in applications you are building?
2) Did you face any challenges while using them?
3) Did you find any cool ways of using these or build any cool custom converters?
4) Any feedback you might want to share about converters to make it easier in using them.
Thanks for all your inputs and for joining in the discussion.
K

did you know that sqlTimestamp converter returns value of java.sql.Date type if you are using sun's oracle jdbc driver. It will return the correct type if you use oracle's jdbc driver. Not sure why this happen, though. Bug?

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What would you like in the documentation? Do you have specific questions about particular components? Do you want examples? What's missing from the online help at http://developers.sun.com/prodtech/javatools/jscreator/reference/docs/help/2update1/components/advanced_list.html?

DID YOU KNOW ?? - Number Converters?

Hi All,
DID YOU KNOW??
That the Creator IDE provides a set of converters that you can use to convert component data. If your input field is for numbers, then you most likely need a converter. Converters are also good for formatting dates, times, and currency values. The standard converters, which you can use are located in the Converters section of the Components Palette.
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When you bind a component, the IDE normally identifies the data type for you and sets the appropriate converter when you establish a binding to the value property. However, you can also add a converter manually by setting the component's converter property.
We would like to know the following from you :-
1) Why and How are you using Converters in applications you are building?
2) Did you face any challenges while using them?
3) Did you find any cool ways of using these or build any cool custom converters?
4) Any feedback you might want to share about converters to make it easier in using them.
Thanks for all your inputs and for joining in the discussion.
(Note :- This is the continuation of the Threadinar Series - see index at
http://forum.java.sun.com/thread.jspa?threadID=5103424)
K

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DID YOU KNOW?? - ABOUT DATAPROVIDER COMPONENTS IN THE PALETTE??

Hi All,
DID YOU KNOW??
Practically all applications entail accessing data of some sort, often data stored in a relational database table or some sort of list, such as a vector or an array. Usually you need to read in data from the data source, but many times you have to update that data, too. The Sun Java Studio Creator integrated development environment, as another enhancement to its application model, provides data provider components that simplify accessing data sources, regardless of whether the data source is a relational database table, flat file, web service, vector, array, or some other type of data store.
A data provider component is a nonvisual abstraction for wrapping sources of data, and it represents a more generic and flexible data binding mechanism. A glance at the Palette indicates that there are many different kinds of data providers available to you. These include data providers for cached RowSets, ResultSets, lists, arrays, maps, table rows, and method results.
These data providers constitute a layer between a web application's components and its persistence tier, such as a database table, Array object, or Enterprise JavaBean object. This layer enables you to access data in a consistent way, even though data may come from different sources.
Lets briefly discuss the CachedRowSetDataProvider
The CachedRowSetDataProvider Component
A CachedRowSetDataProvider is a wrapper to data held in a CachedRowSet. The primary purpose of a CachedRowSetDataProvider is to facilitate binding to components in the IDE. A CachedRowSet stores the data retrieved from a database. In fact, the only information held by the CachedRowSetDataProvider is a cursor position into the CachedRowSet. Multiple CachedRowSetDataProvider instances can reference the same CachedRowSet, and each instance will have its own cursor position into the CachedRowSet.
Learn more :-
Working With Data Providers
http://developers.sun.com/jscreator/learning/tutorials/2/dataproviders.html
Data Provider Components in Java Studio Creator
http://developers.sun.com/jscreator/reference/fi/2/data-providers.html
Using CachedRowSet and CachedRowSetDataProvider in the Sun Java Studio Creator IDE
http://developers.sun.com/jscreator/reference/techart/2/insert_row_in_table.html
We would like to know the following from you :-
1) Which of the DataProviders are you using in applications you are building? Also How and Where?
2) Did you face any challenges while using them?
3) Did you find any special usages/scenarios for using these components?
4) Do you have any feedback/comments/improvements which you would like to see with using Dataproviders?
Thank you for all your inputs and for joining in the discussion.
K

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DID YOU KNOW?? - ABOUT ADVANCED COMPONENTS IN THE PALETTE??

<br>
Hi All,
DID YOU KNOW??
The IDE ships with the following Advanced Components in the Palette.
These advanced components are a set of JavaServer Page markup tags for advanced users. The components have no visual appearance and are useful to developers with experience in JSP and JavaServer Faces technologies.
* Encoding
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* Faces Converter
* Faces Validator
* Faces Value Change Listener
* Faces Verbatim
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* Markup
* Meta
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* Script
Lets look at MARKUP component in more detail.
The MARKUP Component
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When you drop this component on a page in the Visual Designer, you cannot see it on the page until you set the tag property. You can see it in the Outline window and you can select it there to edit its properties in the Properties window.
Use the tag property to specify the type of HTML element to insert. For instance, to insert an <hr> tag, set the tag property to hr with no angle brackets and select the singleton property .
To provide compliance with XHTML, if the HTML element you are inserting is a singleton element, you must specify the singleton property, which causes a trailing /> to be generated in the rendered HTML. For example, the <br> element is a singleton element that must be rendered as
to make it XHTML compliant.
If you want to specify HTML attributes in addition to id and style for the element you are inserting, use the extraAttributes property.
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http://developers.sun.com/prodtech/javatools/jscreator/reference/docs/help/2update1/components/advanced_list.html
We would like to know the following from you :-
1) Are you using these Advanced Components in applications you are building? If so How and Where?
2) Did you face any challenges while using them?
3) Did you find any special usages/scenarios for using these components?
Thanks for all your inputs and for joining in the discussion.
K
</br>

What would you like in the documentation? Do you have specific questions about particular components? Do you want examples? What's missing from the online help at http://developers.sun.com/prodtech/javatools/jscreator/reference/docs/help/2update1/components/advanced_list.html?

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(Microsoft ???!!!)
It knows about Java but not about java (case does matter?!)
When I wrote feedback about annoying horizontal scrollbar when viewing some of the forums with FireFox (for example Java EE SDK forum),
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Try it now!

I do hope others find the videos useful.
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How did you feel about your first mac?

As an early christmas present I received a 13 inch macbook air, 2GB RAM and 1.86GHz dual core cpu.
I am mostly used to PC laptops running linux or often I put solaris on them. I study Computer Science and have Asperger's Syndrome.
I got my mac as windows had too much bloatware and Linux was too unstable on my 64-bit hardware (needed 6 GiB RAM for large compilations). I was going to use the macbook air to take notes and some minor work between classes such as writing assembly subroutines, C and java. The primary use of this system was going to be as a personal assistant to have my calendar and files etc.
The system is so powerful with a full 12 hours battery life when working on the localhost that it can out-do a 2.4GHz dual core with 6 GiB RAM PC running any OS. This system is now used for all my work due to it's capabilities and portability. After only one week with a mac I dont know how I lived without one, and my carer says it has made me show immense improvements day-to-day. I am now tempted to learn Objective-C as well as how to use Cocoa from Python to be more efficient, especially after seeing the perfection in this system.
How did you feel when you got your first mac?

A related question might be, what did you think about the introduction of the IBM PC?
I had been designing digital systems and working with computers for a few years before the PC's introduction in 1981. The mainstay systems were 8 bit Z80 or 8085 machines running at 4 or 6 MHz. They ran CP/M with its command line interface. Although the maximum memory these systems could use was 64 MB, being a single user, single-task operating sytem, even the most resource-hungry programs (word processors for instance) ran very fast. CP/M itself needed only a few K.
Dual floppy disk systems were common, 180 KB per disk unless you had double sided floppies - 360 K. The A drive booted the operating system, after which you could insert a program disk. The B drive held your data. I had one machine with a whopping 5 MB hard disk - the C drive. I treated it with special reverence.
When rumors began about IBM producing its version of a desktop PC, many people including myself had grand expectations. Clearly Big Blue would emerge as the leader in desktop computers, since they had the resources to dictate what the standard would be. Everyone knew the others would be left in the dust. What kind of processor would it use? How much memory? Would it have a slimmed down version of the multiuser, multitasking operating system used in its System/34 minicomputer? Or would it resemble something that DEC used in its PDP-11?
Well, when the IBM PC came out in 1981, needless to say it was an enormous disappointment. It wasn't much better than anything else I had already been using for three or four years already, except the PC was much, much more expensive. No hard disk unless you wanted to buy an upgraded power supply (more $$$) and then all they offered was 10 MB. Forget about multiple users or multitasking. It didn't even have the equivalent of CP/M's PIP. The whole thing seemed... intentionally crippled. This was supposed to be the future of computing? In my opinion it was a major step backward. The XT that followed it offered only minimal improvements. I rejected the IBM PC as not cost effective and kept using my CP/M dinosaurs.
So, when Apple introduced the Macintosh a couple years later I finally saw, in the flesh, what I thought a computer ought to be. A totally bit mapped display, a robust 16/32 bit processor, real sound capability (everything before it could only "beep") and a true graphical UI. You could name a file anything you want, no 8x3 idiocy. +To this day+ Windows carries remnants of 8x3 filenames!
The Macintosh blew away the PC, if not in performance, in its potential. Unlike the "crippled" PC the Mac seemed limitless. This was cool. The Mac wasn't without limitations though - there was no good way to install a hard disk for instance - but for some reason I considered those limitations trivial and believed they would be overcome in the near future. I waited for the first "upgrade" - the "Fat Mac" with a whopping 512K memory. Half a megabyte!
I used that computer for several years, until the SE/30 came out, which I kept in service for about ten years. I ultimately expanded its memory to 32 MB while PC users were struggling with extended memory or expanded memory - you had to know which was which - to get beyond the PC's stupid 640K barrier. My 30 MB HD eventually grew small, but that was easily remedied with an external SCSI drive. Although the computer did everything I ever expected it to do, the Internet eventually made it functionally obsolete. It could run a browser (forget which one) but the black and white limitation made it marginally useful.
I eventually replaced it with an iMac, which echoed the original Mac's introduction with its forward-thinking design. The iMac opened up a new world in much the same way the original Macintosh did in 1984.
All my Macs still work.
yoshitaka wrote:
... After only one week with a mac I dont know how I lived without one, and my carer says it has made me show immense improvements day-to-day.
That pretty much sums it up.
In retrospect, I believe that IBM and its marriage of convenience with Microsoft delayed the evolution of desktop computing a decade or more. I cringe whenever I think of the aggregate productivity loss and utter frustration shared by millions of PC / Windows devotees all these years.

DID YOU KNOW?? - ABOUT DATE TIME CONVERTERS??

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