Why we need State?
Hi, dear all, I am reading what's new in flex4 these days, and found the states has some big changes in flex4 rather then flex3, but I can not realize what is the benefits with use states? actually all state does is to add/remove some components, or make some changes on a compnent, but I can even do that with turn on/off the component's visible settings, or change some other properties, so why state? I know there must be the reason that flex provide the states, and make it more easy to use. can some body give me some prompt abouth this? Regards, Mike.
Thanks for your response EvyatarBH and Kumar Pratik.
I think in the case EvyatarBH said, yes, it was much easier to set propertie values on differents states.
If there are lot of state, and the controls always to be different size, then this may replace dozened of if...else..(s)
For the example Kumar gave out, actually I understood what was the point.
But I think that may only works when the "general" and "admin" page looks very similar.
Otherwise we may need to maintains a lot of controls and logics in one component, that will be much difficult I think.
Not sure if my understanding 100% correct, welcome for more replies.
Again, thanks for your answers, any better suggestions, please keep on.
Regards,
Mike
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Why to need close the result set and statement
why to need close the result set and statement
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package db;
import java.sql.*;
import java.util.ArrayList;
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* Created by IntelliJ IDEA.
* User: MD87020
* Date: Feb 16, 2005
* Time: 8:42:19 PM
* To change this template use File | Settings | File Templates.
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}Anybody who lets the GC or timeouts or sheer luck handle their resource recovery for them is a hack and gets what they deserve.
Do a search on problems with Oracle cursors being exhausted and learn what the root cause is. That should convince you.
scsi-boy is 100% correct.
% -
I have two question requesting from the Gurus.
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Why this select statement is failing
Hi to all experts.
Im not able to understand why this select statement is not fetching the record with this parameters. When i give the same parameters in se11 table t512w.. It has one record, but here the sy-subrc Value is 4.
select * from t512w where molga EQ '15'
and lgart in g_lgart01
and endda gt pn-endda
and begda lt pn-endda.Dear Mohamed,
This Select Statement is bound to Fail. When you are doing a select * from T512W, you intend to get a single record from T512W into the work area T512W which you have declared using TABLES statement. So, here you need to use Select single instead of Select *
If you want more data, then you declare an internal table, say gt_t512w type standard table of t512w and use "
Select from T512W
Into TABLE GT_T512W
WHERE ........
Hope this solves your problem.
Regards,
Amit Sharma -
Hi All,
Why We Need BPM Exactly in XI .
Please Explain me Clearly & Give me the Answer in the Interview Perspective
Regards
VamsiHi Vamsi,
BPM provides you...."<b>Stateful Integration</b>"....these two words are enough to satisfy any interviewer...:-)
1) Collecting of messages till a certain count
2) Merging messages
3) Splitting messages
4) Processing of error files
5) Parallel Processing etc..
Kindly look at the above examples shared by one of our friend......
Lets take first case...
we want to collect 100 messages and when we have collected 100 messages the only want to proceed...here collection of 100 messages is a state...
Similarly we can make the scenario stateful on the basis of a particular time, time period...etc...
for practical example...plz go through BPM patterns under basis objects...where you can see collect patterns,sync/Async bridge...very beautiful examples...to under the need of BPM...
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hi,
Why we need XML.?(we have ascii file format is a gentral format, to access all plateform,why not we didn't follow.?)
like XML:
<contact>
<name> java</name>
<age>25</age>
</contact>
flat files:
contact name:java age:25
i feel flat file is small and easy .....why we didn't use it.........?PS - Jos, how's the weather in your garden today?
(Rainy and cool here.) Well picture this: both of my parrots are trying to
sleep in their own hollow
coconut, slightly disturbed by some silly squeaky
bird at the other side
of the barn. The fish in the pond are sort of
sunbathing between the
floating leafs, my wife seems to be in a catatonic
state sleeping all the
time and then there's me in front of my little laptop
(protected by a silly
little green umbrella like thingy, the laptop that is
;-)A nice image indeed.
It's been one wet spring here. It's very cool and overcast, threatening more rain. I'm sitting in my office working away on getting my head around Spring. I've been going through Rob Harrop's "Pro Spring" slowly and carefully, making all the code work and taking little side trips to set it into my head. Rod Johnson's team is doing a great job, in my opinion.
I still feel that the Spring framework, the web part
of it, is as some sort
of a corset, a hindrance. I feel like I'm all
dressed up but nowere to go
because Spring or something else I don't know about
forbids me ... I
know that I have it wrong alltogether but I can't get
a grip on it. Not sure what the impediment is, but then I don't understand all the nuances of Spring yet. Maybe their newer web flow stuff might help. It models a UI as a state machine, so you can do more complex flows from page to page. The finite automata underneath will appeal to your inner mathematician. 8)
btw. it's in
the lower thirties here (celcius); that makes it in
the lower nineties (fahrenheit).
btw, YoGee helped me a lot yesterday.No surprise there. YoGee sure is smart. While I was reading the thread I wished that I had seen it first. You've been so helpful to me so often that I would have enjoyed reducing the trade deficit I have with you. I know that particular problem with Tomcat and JSTL well.
Yep, I'm working on a large ('Dutch-wise' speaking
that is) optic fibre
network. Technically this network works great.
Managerially speaking
ahem there's nothing yet: no services, no control
of services, no
network checking stuff, no customer (crm) stuff, no
nothing. Those folks
want me to do it all. Sounds like a great problem. Could be an engagement to carry you through the summer.
Yes, that particular part gave me blood behind my
eyes: I did everyhing
according to the book and that crap simply refused to
work. It turned out
that I was trying to develop something against wrong
versions of several
components. In a certain way I'm a believer, i.e.
when I finally do understand
what it's all about I "walk this way" when the
documentation tells me to
"walk this way". When that turns out not to work at
all I want my pink
inflatable axe again (or worse ;-)I like Tomcat, but I think the docs are sketchy. This seems to be a common problem.
No, I feel reluctant to introduce yet another
technology while I'm still
struggling with the ones I found necessary to use.Me, too. I'm overwhelmed by all that I don't know. That's why I'm taking the time to get all the way through Spring once. I've been reading and dabbling, but I haven't given it enough concentrated attention to have it under my fingers. I've got three personal projects lined up once I get through "Pro Spring" that should set it into my head nicely.
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By the way, I decided to buy a copy of IntelliJ. I've never paid for an IDE, but since I've gotten used to it at work I don't want to be without it. I've never championed an environment as much as I do this one. I used Eclipse for several years and was glad to have it, but I'd still find myself slipping out and using a text editor to do quick things. IntelliJ doesn't get in my way. It's completely eliminated any temptation to use a text editor. A terrific product that's only getting better with time.
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<disclaimer>I'm not related to anyone who works for or affiliated with JetBrains in any way. Just a happy customer.
</disclaimer>
I'm not a GUI guy myself, far from that and I'd like
to stay away from it as
far as possible. As I wrote above I feel "all dressed
up but nowhere to go".
I've got my beans all ready, my DataSources are all
solid and sound; I
can see that everything works (from the logs), but
that darn web stuff
keeps on pestering me ...I think the UI is always the hardest part. Everything from the service layer back can almost be generated from the beans and tables: Hibernate mappings, DAOs, service layer, JUnit tests for the whole thing. A few nice annotations and you've got the whole thing. Just the UI beast left to tame...
>
I think I'll take another Grolsch and chase that
silly squeaky bird away.
Enjoy your weekend!
kind regards,
JosYou too! Go enjoy some World Cup football!
% -
Why we need two Joins (Left and Right)
Hi,
Why we need two joins while we can do it just by replacing the tables?
Query 1.
SELECT e.ename, d.dname
FROM emp e LEFT JOIN dept d ON e.deptno = d.deptno ;
Query 2.
SELECT e.ename, d.dname
FROM emp e RIGHT JOIN dept d ON e.deptno = d.deptno ;
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Query 3.
SELECT e.ename, d.dname
FROM dept d LEFT JOIN emp e ON e.deptno = d.deptno ;
So why we need LEFT and RIGHT Joins while we can do this by just replacing tables position ( as in Query2 and Query3).
Regards,
DanishDanish wrote:
Any other suggestions?What do you find lacking in the answers that have been suggested so far?
Why would you restrict the syntax so that you only had one of the two syntax options? That forces developers to write queries in a particular way. If you only had a LEFT OUTER JOIN operator, for example, the first table would always have to be the one that drove the number of rows in the result set. Sometimes (most of the time in my experience), that's a sensible way to approach the problem. But occasionally you get problems where you want to start with the sparse tables and join to the denser tables and having the RIGHT OUTER JOIN makes it much easier to approach the problem that way.
Re-ordering the tables in a query using ANSI syntax is also not necessarily a trivial endeavor. If you're working on building up a query (i.e. join 3 tables, verify the results, join a fourth table, verify the results, etc.) it's potentially non-trivial to change the order of the tables-- you may find that you've inadvertently changed the semantics of your query and now you have to backtrack a bit to verify the new logic.
It's also the same reason that you have multiple ways to write a loop or multiple ways to iterate through a collection. While it's completely possible to rewrite any loop in the form
LOOP
<<do something>>
EXIT WHEN <<something>>
<<do something else>>
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Justin -
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You can't view your back up files at icloud.com.
You can't view your camera roll and you can't view your Photo Stream files at icloud.com.
The icloud back up plan allows you to "restore" your iOS device from the files you backed up at icloud.com. -
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Sir, your Apple ID can be used as an iCloud account as well. They are both the same thing.
You can learn more from --> Set up your Apple ID for iCloud and iTunes - Apple Support -
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Hi Experts,
IF Auto Update Statistics ENABLED in Database Design, Why we need to Update Statistics as a maintenance plan for Daily/weekly??
Vinai Kumar GandlaHi Vikki,
Many systems rely solely on SQL Server to update statistics automatically(AUTO UPDATE STATISTICS enabled), however, based on my research, large tables, tables with uneven data distributions, tables with ever-increasing keys and tables that have significant
changes in distribution often require manual statistics updates as the following explanation.
1.If a table is very big, then waiting for 20% of rows to change before SQL Server automatically updates the statistics could mean that millions of rows are modified, added or removed before it happens. Depending on the workload patterns and the data,
this could mean the optimizer is choosing a substandard execution plans long before SQL Server reaches the threshold where it invalidates statistics for a table and starts to update them automatically. In such cases, you might consider updating statistics
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So in the case above, we could perform manual statistics updates by
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https://www.simple-talk.com/sql/performance/managing-sql-server-statistics/
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Michelle Li -
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