What is the advantage of usning Single Servlet MVC model in Web Sites developed in JSP's ?

I don't think that a Connection Pool class would be an ideal candidate for becoming a JavaBean. One of the most prevalent use of a JavaBean class it to use it as a data object to collect data from your presentation layer (viz. HTML form) and transfer it to your business layer. If the request parameter names match the Bean's property names, a bean can automatically get these values and initialize itself even though it has a zero argument ctor. Then a Bean could call methods in the business layer to do some processing, to persist itself etc.

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What is the Advantage and Disadvantage of Pre-Compiled JSP

Hi All,
What is the advantage and disadvantage of using pre-compiled JSP

Pro:
By pre-compiling your JSPs you don't need a java compiler on the server - just a jre.
The result? No java compiler on the server means a potential security hole patched - people can't just write and deploy jsp's willy nilly on the server.
You KNOW that all your JSPs compile before you visit them - because you have compiled them all :-). It won't fail because of a stupid spelling miskate that prevents compilation. That doesn't mean they will run without error of course...
Con:
Compiling the JSPs ties them to a particular server - unless you take the runtime along with them.

What are the advantages of using an internal table with workarea

Hi,
can anyone tell me
What are the advantages of using an internal table with workarea
over an internal table with header line?
thnks in adv
regards
nagi

HI,
Internal tables are a standard data type object which exists only during the runtime of the program. They are used to perform table calculations on subsets of database tables and for re-organising the contents of database tables according to users need.
http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb35de358411d1829f0000e829fbfe/content.htm
<b>Difference between Work Area and Header Line</b>
While adding or retrieving records to / from internal table we have to keep the record temporarily.
The area where this record is kept is called as work area for the internal table. The area must have the same structure as that of internal table. An internal table consists of a body and an optional header line.
Header line is a implicit work area for the internal table. It depends on how the internal table is declared that the itab will have the header line or not.
e.g.
data: begin of itab occurs 10,
ab type c,
cd type i,
end of itab. " this table will have the header line.
data: wa_itab like itab. " explicit work area for itab
data: itab1 like itab occurs 10. " table is without header line.
The header line is a field string with the same structure as a row of the body, but it can only hold a single row.
It is a buffer used to hold each record before it is added or each record as it is retrieved from the internal table. It is the default work area for the internal table
1) The difference between
whih header line and with out heater line of internal table.
ex:-
a) Data : itab like mara occurs 0 with header line.
b) Data: itab like mara occurs 0.
-While adding or retrieving records to / from internal table we have to keep the record temporarily.
-The area where this record is kept is called as work area for the internal table.
-The area must have the same structure as that of internal table. An internal table consists of a body and an optional header line.
-Header line is a implicit work area for the internal table. It depends on how the internal table is declared that the itab will have the header line or not.
a) Data : itab like mara occurs 0 with header line.
table is with header line
b) Data: itab like mara occurs 0.
table is without header line
2)work area / field string and internal table
which one is prefarable for good performance any why ?
-The header line is a field string with the same structure as a row of the body, but it can only hold a single row , whereas internal table can have more than one record.
In short u can define a workarea of an internal table which means that area must have the same structure as that of internal table and can have one record only.
Example code:
data: begin of itab occurs 10,
ab type c,
cd type i,
end of itab. " this table will have the header line.
data: wa_itab like itab. " explicit work area for itab
data: itab1 like itab occurs 10. " table is without header line.
Regards,
Padmam.

What are the advantages of using LabVIEW projects in TestStand, as apposed to just a path to a vi

What are the advantages of using LabVIEW projects in TestStand, as apposed to just a path to a vi ?
I am modifying an existing workspace for a new product, and it seems like more work to add the vi's into a LabVIEW project
does it gain anything in the long run

Hi Rusty,
I wanted to quickly clarify on the integration between TestStand and LabVIEW Projects.
As Jeff mentioned, some of the big benefits of using LabVIEW Projects is to organize code and to namespace them.
For instance if you had a project called "Power Supply" that housed all your power supply code and had a VI in that called "Initialize", and another project called "Temperature Chamber" that also had a VI called "Initialize", both these VIs are namespaced by the project, so there is no longer confusion about which "Initialize" VI is being used.
Now from a TestStand point of view, in prior version of TestStand, we lost some of this benefit because TestStand did not know about TestStand projects and called VIs simply as un-namespaced VIs. However, in TestStand 2010 (released last year, free eval available at ni.com/teststand), we added the ability to (optionally) call VIs within the context of their projects. This means that:
VIs are now namespaced by their project, even when called from TestStand
VIs can use project specific constructs like NI-DAQmx tasks and conditional compilation settings
Note: When creating deployments, the VIs maintain their projects and namespacing, so this benefit holds true for deployments as well.
Additionally, someone had mentioned looking into using lvlibs to namespace your VIs for deployment. Two comments:
With TestStand 2010, this is no longer neccessary since the project itself namespaces the VIs
You might also want to look into LabVIEW Packed Project Libraries, which combined several VIs into a single file. Think of it as a DLL specific to LabVIEW that is as easy to call as normal LabVIEW VIs. TestStand 2010 can call VIs that are exposed by PPLs. In addition, the deployment utility can automatically pack your VIs into PPLs for deployment.
Hope this is helpful!
Jervin Justin
NI TestStand Product Manager

What are the advantages to adding a server to my home/home office system?

What are the advantages to adding a server to my home/home office system?

It's hard to give you specific answers unless we know your current setup. Any server, or specifically OS X server, may not be appropriate for your workflow.
A server is a centralized computer which can act as a file repository for other computers and devices to access. It can also centrally manage authentication for other resources (ie, have a single sign in for multiple services), can act as a web server, a calendar server, and other features. Of course, many of those things are available from other providers, but having your own server means that you have more control (and responsibility) over them.
This is a good place to start:
https://www.apple.com/osx/server/
Matt

What are the advantages of Using SAP ?

what are the advantages of SAP when compared to other technologies?
what are the basic advantages of SAP

SAP's R/3, introduced in 1992, is the most used ERP system in the world.
The R/3 software package is designed to allow businesses to effectively and efficiently operate a variety of business processes within a single integrated information system.
The software is customizable using SAP's proprietary programming language, ABAP/4. R/3 is scalable and highly suited for many types and sizes of organizations and runs on six different platforms.
SAPu2019s R/3 has been designed to be the best ERP system in the four areas of human resources, financial, supply chain management, and marketing. R/3 is also an international product, and meets the local fiscal, language, and tax requirements of most countries.
SAPu2019s R/3 is very versatile, as it will operate on six different platforms, including the recently added Microsoft NT.
The R/3 package includes several very attractive features like it has a three-tier client/server system. Providing three tiers offers scalability and easier adaptation to the specific needs of large companies and fast-growing companies.
SAPu2019s R/3 is available in 14 different languages (German, English, Spanish, etc.) and also incorporates multiple currency features that provide essential information processing capabilities for multinational corporations.
R/3u2019s modules are organized by the functional areas of financial, human resources, supply chain management, and marketing. While information is entered separately for each specific module, the modules are fully-integrated and provide real-time applications. This means that data entered into one module is immediately and automatically updated and reflected in all oft the functional areas.
R/3 is composed of a single, virtual file structure with no subsystems.
In addition, SAP has released u201CMySAP.comu201D which is software that provides for data interaction and processing connections with the Web.
Financial and managerial accounting tools in SAP R/3 are contained in the financial accounting (FI) and the controlling (CO) modules. The General Ledger function in the FI module provides a comprehensive record of all information needed for external financial reporting. The accounting data is complete and accurate because the SAP system fully integrates all business transactions that were entered from all the operational areas of a company. In addition to the FI and CO modules, the SAP system includes the Investment Management (IM), Sales and Distribution (SD), Materials Management (MM), and Human Resources (HR) modules.
Management accounting tools in SAP R/3 are cost center accounting, internal orders, product costing, and activity based costing, profitability analysis and profit center accounting.
SAP R/3u2019s accounting features are modeled on German approaches to accounting, and thus they are well-organized and very efficient in processing accounting information and providing accounting statements and financial reports.
As stated previously, R/3 offers multiple currency features and a three-tier system that is capable of meeting very high demands from the accounting system for either transaction processing or financial reporting.
SAP was the first to implement integrated treasury capabilities. This attractive feature allows a corporate treasury department to function as an in-house bank by automating the control of cash flow, investment trades, and portfolio management.
R/3 provides check writing capability in its Accounts Receivable component which very few other programs offer.
Additionally, there is equal access to all data in the system. This means that personnel can access financial data directly from a computer screen rather than physically meet with the treasurer, controller, or some other similar person. In other words, R/3 offers real-time, immediately updated reporting.
R/3 also provides for a "single data entry point" where the data entered from any location is instantly sent to all other appropriate modules in the ERP system.
The accounts payable component of SAP R/3 contains four types of transaction blocks namely:
● The audit block● The receiving block● The vendor block● A manual block
These blocks make it much less likely that improper payments will occur.
SAP R/3 is organized with the concept that a business operates as a series of processes, which means that the company implementing R/3 may have to change and reorganize itself to properly fit with R/3 and use it effectively.

What are the advantages and disadvantages for the larger blocksize and for

What are the advantages and disadvantages for the larger blocksize and for the smaller blocksize?

Smaller blocksize
Advantages
GoodHas relatively large space overhead due to metadata
(that is, block header).
Not recommended for large rows. There might only
be a few rows stored for each block, or worse, row
chaining if a single row does not fit into a block, for small rows with lots of random
access.
Reduces block contention.
Disadvantages
Has relatively large space overhead due to metadata
(that is, block header).
Not recommended for large rows. There might only
be a few rows stored for each block, or worse, row
chaining if a single row does not fit into a block.
Larger blocksize
Advantages
Has lower overhead, so there is more
room to store data.
Permits reading a number of rows into
the buffer cache with a single I/O
(depending on row size and block size).
Good for sequential access or very large
rows (such as LOB data).
Disadvantages
Wastes space in the buffer cache, if you are doing
random access to small rows and have a large block
size. For example, with an 8 KB block size and 50
byte row size, you waste 7,950 bytes in the buffer
cache when doing random access.
Not good for index blocks used in an OLTP
environment, because they increase block contention
on the index leaf blocks.

What are the advantages and disadvantages of the Joint operation

Hi, I am currently trying what out the advantages and disadvantages of the Joint Operation ... any help would be appreciated

The advantage of join operations are that joins allow
retrieval or data from more than one table at a
time.
A disadvantage of join operations is that the SQL
statement may be more complicated to write and read
than multiple simple selects.
Another advantage is that fetching data from multiple
tables in a single SQL statement is that using a join
is likely to be more efficient than using several
simple SQL statements with procedural logic
performing the work of the join.
There are basic three types of join operations in
Oracle: nested loop, hash join, and sort/merge.
You can find descriptions of these operations in the
Oracle Performance and Tuning manual.
HTH -- Mark D Powell --
Thanks for the information Mark ... Much Appreciated

What is the advantage of a JAR file?

what are the advantages of a JAR file?
is it faster to compile?
tell me why it does exist...
thanks

There should be lots. From the top of my head:
1) Compressed jar files are faster to download.
2) Browser only needs to open a single connection to download one jar files instead of multiple class files.
3) All class files are present at execution instead of being downloaded on a needs-basis which usually causes delays in the applet.
4) Jar files can be signed.
5) User doesn't need to juggle around several files at once nor do they need to deal with folders.
Of course there are disadvantages as well so you should weigh your options before diving in.

What are the advantages of a solid state drive?

I was considering upgrading to a solid state drive in my Mac Mini, but was wondering what all the advantages are. Does it mainly deal with boot times, or does it actually make programs run faster? The reason I ask is most videos I see only show boot times, and also I was under the impression that once a program is up and running it uses RAM to operate more than it does the hard drive.
So is a Solid State Drive worth it in terms of speed, beyond just boot times?
Thanks in advance for any insight.

The Fusion Drive that came in my Mac Mini from the factory is a combination of a 128GB SSD and 1TB HD, but OS X treats the two as a single device. OS X has long had a feature where the most active files are moved to that part of the drive that has the fastest access times. That offered some improvment in disk I/O. In the case of the Fusion drive, the fast part of the drive is de-facto the SSD portion of the combination. In theory the Fusion Drive provides the speed of an SSD with the relatively low cost capacity of the HD. In practice, and after some runtime experience where the OS measures file activity and moves the most active files to the SSD there is an obvious improvement in overall system performance and the cost is bearable.
Kevin Fromcamarillo mentioned the OWC upgrade and IMO it is a good one. There are articles around that will tell you how to format and configure an SSD and HD to be a Fusion drive. I have not tried that so I cannot say whether it is as good as the Apple factory Fusion drive or not. Personally I think the Fusion drive concept is like a hybrid automobile. An intermediate step until technology brings the cost down and capacity up enough to make them fully competitive. That time is coming sooner rather than later. Notice Appe is not even offering HDs on some models and instead going to all SSD. I don't think it will be too long before I am tryng to move my Fusion drive into an external enclosure and replacing it with a high capacity SSD.
A caveat with the Fusion drive. If you use third party volume repair and maintenance utilities, be absolutely sure the version you hvae is certivied compatible with a Fusion drive. Even when apps are certified compatible, that compatibility may not indlude all of their functions.

8 bits vs 32 bits? What are the advantages?

Hi, sorry about his basic question, but, what are the advantages of working in 32 bit mode? Is a broader, deeper color range available?
Apparently some tools only work in 8 bit mode -- so is 8 bit still the typical work environment?
Thanks

This a huge, complicated and confusing subject which cannot be explained in a few lines here:
Trying to take your questions one by one:
32-bit per channel and HDR: This is a procedure where you can combine a number of digital photographs which were taken with differing exposures for the highlights and for the shadows and combine them into a single image in order to retain a wider dynamic range. (The results that I have seen from the use of this technique have mostly been somewhat bizarre and perfectly hideous!).
>For instance, when someone saves their 16-bit ProPhoto RGB image ( a superwide gamut space ), then converts to 8-bit Adobe RGB, and then converts to SWOP CMYK, the additional gamut found in the ProPhoto RGB will be clipped or reduced down to the Adobe RGB gamut.
We need to break that down a bit:
>Saves their 16-bit (per channel) ProPhoto RGB image ( a superwide gamut space ):
Correct.
>Then re-opens [or duplicates], the Saved 16-bit (per channel) ProPhoto RGB image and converts to 8-bit (per channel) Adobe RGB:
That produces an RGB file which has been "clipped" to fit the smaller AdobeRGB space but it is still a 16-bit (per channel) file.
>and then converts to SWOP CMYK:
Now you have CONVERTED your RGB colors to generate printing plates that will produce as close a replica as you can get to your Soft-preview of your (current) AdobeRGB image
when printed on a Press which EXACTLY matches the conditions dictated by the CMYK Profile that you used.
But you still have a 16-bit per Channel file UNTIL you change the Image mode to 8 Bits.
>if you retain the 16-bit ProPhoto RGB and go straight to SWOP CMYK, the color will be clipped to fit inside the SWOP space.
Not exactly: Your RGB image will be mapped to individual C, M, and Y Plates, and a Black plate will be generated (using the attributes of your specified CMYK Profile concerning GCR and Total Ink) in order to give you the best reproduction on Press (when real INK hits PAPER!) of your original RGB image.
But do read more on this subject because it is supremely important that you understand it fully.
I highly recommend Dan Margulis' "Professional Photoshop" for gaining a better understanding of this subject.

What is VIEW in Database table what is the advantage

Hi:
I would like to get your opinion on what is the advantage of Table VIEW?
I read a note saying it is all about simplifying Query.
But when you come to XMLTYPE where there is only ONE ROW and NO COLUMN,
How do you create XMLVIEW for a large XML files?
Please help
Ali_02

Overview of Views
Read here...
http://download.oracle.com/docs/cd/E11882_01/server.112/e10713/schemaob.htm#i20690
XMLView or XMLTYPE ?
Overview of XML in Oracle Database
Read here...
http://download.oracle.com/docs/cd/E11882_01/server.112/e10713/cncptdev.htm#CNCPT1535
Edited by: ordba on Mar 4, 2010 9:50 AM

What is the advantage of using IB to create XIBs/Class Objects over coding?

Hi all,
I hoping someone can provide me some pros and cons as to when I should use IB to create XIBs and/or class objects as opposed to directly coding them.
For example, if I choose Apple's Template for creating a Navigation Based Application (cocoa touch), the project creates two NIB files - MainMenu and RootViewController.
However looking at one of demo apps SimpleDrillDown, it does not have a RootViewController XIB and instead creates it via code.
Another example from the same two apps is that the template generates a "Navigation Controller" class object in the Mainmenu.xib. SimpleDrillDown does not bother with this in the XIB, but uses code to generate the controller:
- (void)applicationDidFinishLaunching:(UIApplication *)application {
// Create the navigation and view controllers
RootViewController *rootViewController = [[RootViewController alloc] init];
UINavigationController *aNavigationController = [[UINavigationController alloc] initWithRootViewController:rootViewController];
self.navigationController = aNavigationController;
[aNavigationController release];
[rootViewController release];
// Configure and show the window
[window addSubview:[navigationController view]];
[window makeKeyAndVisible];
as opposed to the template which only needs this:
- (void)applicationDidFinishLaunching:(UIApplication *)application {
// Configure and show the window
// Navigation Controller is defined in MainWindow.xib
[window addSubview:[navigationController view]];
[window makeKeyAndVisible];
So what are the advantages of each approach. Why does apple suggest one approach and yet all its demos use another.
Any thoughts, answers gratefully received.
TIA, Michael.

You can do whatever you're comfortable with, but most of the best Cocoa programmers--the ones on the Mac, I mean--recommend putting everything you can into Interface Builder.
It's a little like the difference between writing a program to do a bunch of financial calculations and using a spreadsheet. Yeah, the program can do everything the spreadsheet can--and more besides--but you'll find it far easier to create, use and modify the spreadsheet.
Interface Builder takes away a lot of completely meaningless choices ("What order should I create the objects in? How should I name the variables? How should I create their frames? What order should I set the attributes in?"), leaving you with an interface optimized for creating and arranging objects, and allowing your code to focus on what you really do need to think about--your application's logic.
(By the way--part of the reason Apple's demos don't all use Interface Builder is that the very first SDK releases didn't have it. Back then, you had to create all your views programatically. Believe me, I have no wish to go back to setting autoresize masks manually. Now get off my lawn, whippersnapper.)

What are the advantages of compressor and it it even necessary

what are the advantages of compressor and it it even necessary?

Necessary for some and not for others – probably a large majority – who can by with the presets avalaible in FCX.
The users who need Compressor are those who want to control the parameters of the encodes to get the best possible trade-off between file size and quality. Or those who want to do things like standards conversions, complex frame speed changes, better re-scaling capabilities, de-interlacing, re-interlacing, output formats beyond which are available in FCX, chapter markers for DVD and Blu-Ray authoring, batch conversions for multiple purposes through droplets, access to clusters for faster rendering.
Russ

What are the advantage of using a passive monitoring technique ?

What are the advantage of using a passive monitoring technique

Hi Plawansai,
I saw your question that is still unanswered.
I believe an advantage of using a passive monitoring technique is that it won't interfer with live traffic, as it does not inject traffic into the network or modify the traffic that is already on the network.
One drawback anyway, is that post-processing time can take a large amount of time with passive monitoring!
A combination of the two monitoring methods seems to be the route to go.
V.

What is the advantage of usning Single Servlet MVC model in Web Sites developed in JSP's ?

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