What is the advantages of use EJB ?
I am not very sure.
Why use EJB ?
I dont konw the advantages of use this technology.
Example:
You have an applicacation with two interfaces:
1.- by web
2.- by a Java application.
if you keep the business logic in the EJB, and the web and the application call it , you will write the business logic once, and your applications will be more simple.
Similar Messages
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What is the advantage of using Wrapper Classes ?
Hi friends,
I am happy to join Java/J2EE tech. My project is scaled over the network. MVC-II struts, EJB based architecture, we are using.
We are asked to use Wrapper Classes in in Java programs and not the primitive data types. I could not understand the reason.
Pls tell me what is the advantage of using Wrapper Classes over the primitive data types ?
means Integer instead of int, etc....Hi friends,
I am happy to join Java/J2EE tech. My project is
scaled over the network. MVC-II struts, EJB based
architecture, we are using.
We are asked to use Wrapper Classes in in Java
programs and not the primitive data types. I could
not understand the reason.
Pls tell me what is the advantage of using Wrapper
Classes over the primitive data types ?
means Integer instead of int, etc....I am not sure why use Integer over int; but Wrapper classes are used to remove coupling between classes and create one hand doesn't know what the other hand does effect.
for example:
when you have a SFTP java package but doesn't do everything that your application needs to do in one step and you need to do sftp stuff at many places in your application, it would be wise not to use SFTP java package directly from all the classes that need to do sftp stuff. Because if you were to change the SFTP package later due to say some bug fix or newer version or ... you would have to go and modify all the classes that had sftp stuff to update.
Instead you could write a custom sftp wrapper that handles all the sftp stuff for your application needs and that wrapper deals with the SFTP java package. So all the classes don't need to know which SFTP java package is being used only the custom-wrapper needs to know. -
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 advantages of using Flexconnect groups
what is the advantages of using Flexconnect groups in WLC?
Reg,
Ezra.Pls refer this document for more detail about these features
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/emob73dg/emob73/ch7_HREA.html#wp1091114
FlexConnect is one mode an AP can operate, typically deployed in Branch setup where you do not have a controller at branch site. Those AP can register to a controller at your HQ or main site. So traffic will terminate at your branch switch instead of tunnel back to HQ-WLC.
If you want roaming within your branch FlexConnect AP then you have to put those AP into a FlexConnect Group. Then only key information shared among those AP to facilitate fast roaming.
Pls do not forget to rate our responses if you find them useful.
HTH
Rasika -
Hi All,
I am new to TestStand. Still in the process of learning it.
What are Parameters? How are they differenet from Variables? Why can't we use variables for passing data from one sequnece to another? What is the advantage of using Parameters instead of Variables?
Thanks in advance,
LaVIEWan
Solved!
Go to Solution.Hi,
Using the Parameters is the correct method to pass data into and out of a sub sequence. You assign your data to be passed into or out of a Sequence when you are in the Edit Sequence Call dialog and in the Sequence Parameter list.
Regards
Ray Farmer -
What are the advantage of using Oracle Database when compare to SQL SERVER
Hi all
Please tell anyone about
what are the advantage of using Oracle Database when compare to SQL SERVER
Thanks in advance
Balamurugan Suser12842738 wrote:
Hi,
There are various differences between the two.
1. SQL Server is only Windows, but Oracle runs on almost all Platforms.
2. You can have multiple databases in SQL Server, but Oracle provides you only one database per instance.Given that the very term 'database' has s different meaning in the two products, this "difference" is absolutely meaningless.
3. SQL Server provides T-SQL for writing programs, whereas Oracle provides PL/SQLWhich means what? Both products have a procedural programming language. They named them differently, and the languages are not interchangeable. Means nothing in comparing the features/strengths/weaknesses/suitability to purpose.
4. Backup types in both are the same. (Except Oracle provides an additional backup called Logical Backup.)You make that sound like "Logical Backup" is something more than it is. It is nothing more than an export of the data and metadata. Many experts don't even consider it a backup. I'm sure SQL Server provides the same functionality though they probably call it by some other name.
5. Both provide High Availability.Well, I guess they both have a suite of features they refer to as "High Availability". But what does that really mean? The devil is in the details. Remember, the two products don't even agree on what constitutes a "database".
6. Both come in various distributions.???
>
If you are going for an Implementation, you can try SQL Server Express Edition and Oracle XE which are free to use.
Then you can choose whichever is comfortable for your needs.
Thanks. -
What is workflow ? What are the advantages of using workflow? What are the
what is workflow ? What are the advantages of using workflow? What are the steps for building a workflow ?
Hi Leela,
Your question is very straight question.
Better u can follow these links.
http://www.esnips.com/doc/90b7763b-f9d9-4861-a273-04674b9fe3f2/Workflow
http://www.esnips.com/doc/991843e0-8686-4949-94b9-f45d90081b22/workflow
And i'll give some theory answer for ur questions
i.e.,SAP Business Workflow can be used to define business processes that are not yet mapped in the R/3 System. These may be simple release or approval procedures, or more complex business processes such as creating a material master and the associated coordination of the departments involved. SAP Business Workflow is particularly suitable for situations in which work processes have to be run through repeatedly, or situations in which the business process requires the involvement of a large number of agents in a specific sequence.
You can also use SAP Business Workflow to respond to errors and exceptions in other, existing business processes. You can start a workflow when predefined events occur, for example an event can be triggered if particular errors are found during an automatic check.
SAP provides several workflows that map predefined business processes. These workflows do not require much implementation. For an overview of these SAP workflows, refer to Workflow Scenarios in Applications.
Integration
SAP Business Workflow uses the existing transactions and functions of the R/3 System and does not change the functions. You can combine the existing functions of the R/3 System to form new business processes with SAP Business Workflow. The workflow system takes over control of the business processes. If you are already using SAP Organizational Management, you can use the organizational structure created there to have the relevant agents carry out the individual activities. It is possible to have an activity carried out by a position. This ensures that the respective occupiers of the position can carry out the individual activities during execution of the workflow. This means that personnel changes in your organization are taken into account immediately in the execution of a workflow.
Features
SAP Business Workflow provides a number of tools for defining and analyzing workflows as well as for monitoring operation.
The Workflow Builder is for displaying and making changes to workflows. You can make small extensions directly to the original workflows supplied by SAP, such as carrying out your own agent assignments or changing deadline monitoring.
There are several Workflow Wizards to support you in the definition of workflows, with which you can create specific parts of a workflow. The Workflow Wizard Explorer gives you an overview of the existing Workflow Wizards.
In order to make the functions of the R/3 Systems available to a workflow, you use business objects, which you can define and analyze in the Business Object Builder. These business objects are made available to the workflow in reusable tasks. The Business Wizard Explorer gives you an overview of all existing tasks.
The end user receives information about the activities they are to carry out in their Business Workplace. This provides them with a central overview of all the activities that they are authorized to carry out. They can commence the activities from here.
Several tools are available to the workflow system administrator, with which they can control and analyze the current workflows. The workflow system administrator is notified of problems automatically by the system.
Workflow tutorials with step-by-step and with screenshots are available at http://www.****************/Tutorials/Workflow/Workflow.htm
This has a step by step procedure :
http://fuller.mit.edu/workflow/debugging.pdf
www.erpgenie.com/sap/workflow/debugging.htm
http://www.erpgenie.com/workflow/debugging.htm?2b5de440
Rewards if it is useful. -
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
nagiHI,
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 CACHE and NOCACHE Hint
What are the advantages of using CACHE and NOCACHE Hint & difference of them.I saw one of oracle.sql script have CACHE & oracle rac script include NOCACHE .Why is that
924250 wrote:
In a SOA product include db scripts,when we install the product we want to execute the db script to create sequence both oracle RAC & Oracle db
Oracle DB
CREATE SEQUENCE REG_LOG_SEQUENCE START WITH 1 INCREMENT BY 1 NOCACHE
Oracle RAC DB
CREATE SEQUENCE REG_LOG_SEQUENCE START WITH 1 INCREMENT BY 1 CACHE 20 ORDERas sb mentioned, this has nothing to do with oracle hints.
you'll want to search the documentation about sequences. -
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 runHi 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 is the advantages of using oracle10g database?
Hi,
I didn't feel many advantages when using oracle10g.
So what is the advantages of using oracle10g database?
For common using,not for advance.It is not big different.
Thanks in advance!For normal users versions before 10g is sufficent.But for large applications means distributed applications(grid) 10g is good one
-
What is the advantage of using RMI over socket connection
plz tell me guys what is the advantage of using RMI over socket connection bcoz inherently RMI also uses socket connection.so what is the exact difference in between thm and what is the advantage of using RMI over socket connection.
i knew tht bt i http://www.catb.org/~esr/faqs/smart-questions.html#writewell
How To Ask Questions The Smart Way
Eric Steven Raymond
Rick Moen
Write in clear, grammatical, correctly-spelled language
We've found by experience that people who are careless and sloppy writers are usually also careless and sloppy at thinking and coding (often enough to bet on, anyway). Answering questions for careless and sloppy thinkers is not rewarding; we'd rather spend our time elsewhere.
So expressing your question clearly and well is important. If you can't be bothered to do that, we can't be bothered to pay attention. Spend the extra effort to polish your language. It doesn't have to be stiff or formal in fact, hacker culture values informal, slangy and humorous language used with precision. But it has to be precise; there has to be some indication that you're thinking and paying attention.
Spell, punctuate, and capitalize correctly. Don't confuse "its" with "it's", "loose" with "lose", or "discrete" with "discreet". Don't TYPE IN ALL CAPS; this is read as shouting and considered rude. (All-smalls is only slightly less annoying, as it's difficult to read. Alan Cox can get away with it, but you can't.)
More generally, if you write like a semi-literate b o o b you will very likely be ignored. So don't use instant-messaging shortcuts. Spelling "you" as "u" makes you look like a semi-literate b o o b to save two entire keystrokes. -
What is the advantage of using Yosemite on my iMac over 10.9.5
What is the advantage of using Yosemite over Lion on my iMac? Is it any faster, slower or what?
Before upgrading to a new operating system, here are a couple considerations:
1. If you are having problems with your current system, full version upgrades
will make them worse. Fix all issues before making the upgrade.
2. Make sure that any third party hardware is compatible with the new operating
system, i.e. drivers available to support the OS.
3. The hidden cost item of needing to upgrade apps to work on the new OS.
If your any of your favorite or mission critical applications are not compatible,
expect the possibility of needing to purchase upgrades of those apps so that
they will work on the new OS.
4. If you rely on your computer for your livelihood, be absolutely sure that you
have a backup strategy and plan to quickly recover should there be any issues.
There has been many a complaint on this forum that new OS upgrades have
have ruined their business and had no recovery strategy in place. Besides,
anyone relying on a computer for their livelihood is REQUIRED to have such
a strategy in place regardless of OS upgrades as anything can happen at
any time.
5. If everything is working fine and dandy for you currently, you need to ask if
any of the new features of an OS of any use to you. If not, then perhaps
a "don't fix it if it ain't broke" philosophy is what you should follow. -
What is the advantage of using mgcp instead of h323 gw?
what is the advantage of using mgcp instead of h323 gw?
i think mgcp supports srtp but h323 notHi
H.323
-Uses Abstract Syntax Notation 1 (ASN.1) for call control messages
-Uses a peer-to-peer model
-Scales well in an enterprise
-Fractional PRI support
-CallerID support on analog FXO
-Many more TDM interface types and signaling
-Gateway-resident applications like TCL and VXML
-CAC network design with H.323 Gatekeepers
-No release dependencies between GWs and CCM
-Call preservation for SRST on PRIs
MGCP
-Not as mature as H.323
-Uses clear text for call control
-Uses a client-server model
-Ideally positioned for service providers (centrally located call agents)
-Centralized management and control (Dial plan, etc.)
-Enhanced call survivability
-Better feature interaction with capabilities like CallerID
-Support of QSIG supplementary services with CCM
Thank you
please rate all useful information -
What is the advantage of using badi in infospoke?
Hi all,
Can anyone let me know when shall we use badi along with infospoke. if we apply so, then what is the advantage of using badis in infospoke.
thanxs
harithaHi,
BADIs will come into picture where you want to do some messaging (manipulations)on data before downloading.
For eg while downloading the sales data you want to fetch billing data from billing related infoproviders , put a look up on billing info providers and update the sales data with billing info in BADI.
hope it helps..
regards,
raju
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