Question on the engineering behind Swing

I have been using the AWT for 5 years and love it, but I'd like to have Trees and Tables, etc.
My question is this: Why do applets and applications that use Swing for their UI paint v-a-r-y slowly and sometimes don't work, or don't repaint when a menu is shown/removed. I have noticed this in many programs. I know that Swing is a "skin" painted onto the screen to represent UI components in a system-indpendent way, but still, why do slow? It's not my JVM and not my system. So the classes must be just too bulky for their own good. Is there are other Swing-like UI library? Theres AWT, Swing, and ???

I'd be surprised to see Swing be faster than AWT.
On Windows, Swing is pretty good, on other OSs, it ain't. Not the fault of the OS, but of Swing/JVM.
I use Swing at the moment, but that's because AWT doesn't have enough features.
I don't like the fact that Swing is non-native, and may consider SWT at some point (pending investigations into its licensing, how easy it is to deploy).
The fact that Swing is non-native is far more important to me than its speed. If AWT were improved (feature-wise) to the same level as Swing, I'd be happy.

Similar Messages

What is the rationale behind the "Adobe Standard" color calibration profile?

Hi! I'm trying to figure out how to make the most of the various color calibration profiles Adobe offers for my cameras with Lightroom 5. I do understand the purpose of the camera-specific options--they're designed to help approach camera JPEG processing mode colors. And they work wonderfully--they're very helpful!
But I don't really understand the purpose of the "Adobe Standard" calibration option. What is it for? Why does it look the way it looks? Has it been designed to ease certain processing goals? To enhance certain colors or tonal combinations? Is it designed to be more accurate than the manufacturer profiles in some way? What can I do with "Adobe Standard" that I can't do with one of the camera-specific calibration options?
I would find it *extremely* helpful if someone who's involved with the engineering behind Lightroom's color (or anyone else who's especially knowledgeable about Lightroom's design) might talk a little bit about why "Adobe Standard" looks the way it looks. What's it for? To what purposes can I leverage it?
Thanks so much!

MarkJoseph wrote:
I would find it *extremely* helpful if someone who's involved with the engineering behind Lightroom's color (or anyone else who's especially knowledgeable about Lightroom's design) might talk a little bit about why "Adobe Standard" looks the way it looks. What's it for? To what purposes can I leverage it?
Adobe Stadnard is the name for the individual profiles Adobe builds for each camera it receives. A new camera ships, Adobe gets their hands on one and builds a profile with that sample. It isn't suppose to mimic the in-camera JPEG settings, I don't believe it's supposed to mimic anything but instead produce what is (and quotes are super important in this context) the most 'accurate' color response from the target they use to create the profile. But here's the rub. Not all cameras from the same make and model behave identically. Adobe simply can't get piles of the same body and build then average that response. So they provide a means for you to build your own custom DNG camera profile and for differing illuminates. So if you want to leverage it, you'd get a target (MacBeth 24 patch, X-rite Passport) and build your own custom profile. It can really help depending on how your sensor deviates from the sensor Adobe got to build their profiles.
For more info on DNG profiles and rolling your own:
In this 30 minute video, we’ll look into the creation and use of DNG camera profiles in three raw converters. The video covers:
What are DNG camera profiles, how do they differ from ICC camera profiles.
Misconceptions about DNG camera profiles.
Just when, and why do you need to build custom DNG camera profiles?
How to build custom DNG camera profiles using the X-rite Passport software.
The role of various illuminants on camera sensors and DNG camera profiles.
Dual Illuminant DNG camera profiles.
Examples of usage of DNG camera profiles in Lightroom, ACR, and Iridient Developer.
Low Rez (YouTube):
http://youtu.be/_fikTm8XIt4
High Rez (download):
http://www.digitaldog.net/files/DNG%20Camera%20profile%20video.mov

Question about the Glassfish Persistance engine

Goodday,
I am working with Sun Appserver (glassfish v2). And using entity beans to generate my mysql database and work with the data.
Now somting catched my eye the last few days if your using the @OneTOne() method. The persistence engine makes the object a could be null. For instance I have the folowing code:
    @Id
    @GeneratedValue
    @Column(name = "Mandatecode", nullable=false)
    public int getMandatecode() { return Mandatecode; }
    public void setMandatecode(int str) { this.Mandatecode = str; }
    @Column(name = "Projectnaam", length=20, nullable=false)
    public String getProjectnaam() { return Projectnaam; }
    public void setProjectnaam(String str) { this.Projectnaam = str; }
    //This should be true but for testing purpuses its left to false.
    @OneToOne()
    @JoinColumn(name="ProjectType")
    public ProjectSoort getProjecttype () { return projecttype; }
    public void setProjecttype (ProjectSoort ps) { this.projecttype = ps; }It would result in the following table:
Mandatecode
Projectname
ProjectType
But all the collums have may not be null. However I want to ProjectType to be aible to be null in this table. How do I do this?

I'm not sure what you're asking, but a useful resource that may answer your question is the article [Master the New Persistence Paradigm with JPA|http://www.devx.com/Java/Article/33650/], an article which focuses on JPA , MySQL, and MySQL DDL generation.

Question about the Apple logo behind the iMac.

Hi everyone. I'm new.
First time Macintosh user. Does anyone know if the logo behind my new iMac retina 5k lights up? I've heard rumors that wireless connection goes through the logo and enters the computer. But i'm curious to know if it lights up.
Thanks.

Yes, it would work fine. I plug various flash drives into my shuffle dock all of the time.

Mid-2013 Macbook Air: question about the battery life

First of all, I'm sorry if these questions have been already asked, I've looked around and I've seen some answers, but none that fit my specific case.
I have had this computer since December (Macbook Air, 13'', Mid-2013), I've been using it for a month now. At the beginning, I used to use it until my battery was low (between 10 and 20%) and then charge it. Then I learnt that it's better to keep it plugged as much as possible (I have read this in other discussions and on the Apple page). The problem is that my battery is no longer a 100% of its capacity according to Cococnut Battery. It started with 99%, then back to 100%, then 98, 97... and now it varies from 97 to 98 (right now it says that my computer's current capacity is 6948 mAH). I don't know if this is normal, or if this is caused by the use I used to give to my macbook air at the beginning or by any other thing. I also have 19 loadcycles already. Besides, I have noticed that sometimes it jumps form 100% to 99% of battery pretty fast when I don't have it plugged, and I'm not sure if that happened before.
This is my first time dealing with a macbook and I don't know how these things are supposed to work, and I'm worried my battery might have any kind of problem and that's why itdoesn't have full capacity anymore, since I've been using it for only a month.
Also, sometimes it takes a little while to shut down. It usually takes 2 seconds, but sometimes it takes longer, maybe 20 seconds (first the screen turn white, then the loading icon appears and then it finally shuts down). Is this normal too for macbook airs?
Thanks for the help!

Those are only averages, for purposes of the battery 97 98 99 and 100 are the 'same thing'........theyre all estimates.
Normal on shut down, sometimes you can see a few seconds, sometimes 10, 15 seconds shut down.....depends on what and HOW much its shutting down before poweroff.   Normal.
ON BATTERY USE:
Keep it plugged in when near a socket so you keep the charging cycles down on your LiPo (lithium polymer) cells / battery, but not plugged in all the time. When not being used for several hours, turn it off.
http://www.apple.com/batteries/notebooks.html
"Apple does not recommend leaving your portable plugged in all the time."
General rule to remember of Lithium batteries is:
Never drain them LOW & dont always/often store them HIGH
While cycle count is commonly seen to be the “miles” on your Lithium Ion pack cell in your Macbook, which they are, this distinction is not a fine line at all, and it is a big misconception to “count charge cycles”
*A person who has, for example, 300 charge cycles on their battery and is recharging at say 50-60% remaining of a 100% charge has better battery usage and care than another person who has 300 charge cycles at say 15% remaining on a 100% charge.
DoD (depth of discharge) is far more important on the wear and tear on your Macbook battery than any mere charge cycle count. *There is no set “mile” or wear from a charge cycle in general OR in specific.    As such, contrary to popular conception, counting cycles is not conclusive whatsoever, rather the amount of deep DoD on an averaged scale of its use and charging conditions.
                          (as a very rough analogy would be 20,000 hard miles put on a car vs. 80,000 good miles being something similar)
*Contrary to some myths out there, there is protection circuitry in your Macbook and therefore you cannot overcharge it when plugged in and already fully charged
*However if you don’t plan on using it for a few hours, turn it OFF (plugged in or otherwise) ..*You don’t want your Macbook both always plugged in AND in sleep mode       (When portable devices are charging and in the on or sleep position, the current that is drawn through the device is called the parasitic load and will alter the dynamics of charge cycle. Battery manufacturers advise against parasitic loading because it induces mini-cycles.)
Keeping batteries connected to a charger ensures that periodic "top-ups" do very minor but continuous damage to individual cells, hence Apples recommendation above:   “Apple does not recommend leaving your portable plugged in all the time”, …this is because “Li-ion degrades fastest at high state-of-charge”.
                    This is also the same reason new Apple notebooks are packaged with 50% charges and not 100%.
LiPo (lithium polymer, same as in your Macbook) batteries do not need conditioning. However...
A lot of battery experts call the use of Lithium cells the "80% Rule" ...meaning use 80% of the charge or so, then recharge them for longer overall life.
Never let your Macbook go into shutdown and safe mode from loss of power, you can corrupt files that way, and the batteries do not like it.
The only quantified abuse seen to Lithium cells are instances when often the cells are repeatedly drained very low…. key word being "often"
Contrary to what some might say, Lithium batteries have an "ideal" break in period. First ten cycles or so, don't discharge down past 40% of the battery's capacity. Same way you don’t take a new car out and speed and rev the engine hard first 100 or so miles.
Proper treatment is still important. Just because LiPo batteries don’t need conditioning in general, does NOT mean they dont have an ideal use / recharge environment. Anything can be abused even if it doesn’t need conditioning.
From Apple on batteries:
http://support.apple.com/kb/HT1446
http://www.apple.com/batteries/
Storing your MacBook
If you are going to store your MacBook away for an extended period of time, keep it in a cool location (room temperature roughly 22° C or about 72° F). Make certain you have at least a 50% charge on the internal battery of your Macbook if you plan on storing it away for a few months; recharge your battery to 50% or so every six months roughly if being stored away. If you live in a humid environment, keep your Macbook stored in its zippered case to prevent infiltration of humidity on the internals of your Macbook which could lead to corrosion.
Considerations:
Your battery is subject to chemical aging even if not in use. A Lithium battery is aging as soon as its made, regardless.
In a perfect (although impractical) situation, your lithium battery is best idealized swinging back and forth between 20 and 85% SOC (state of charge) roughly.
Further still how you discharge the battery is far more important than how it is either charged or stored short term, and more important long term that cycle counts.
Ultimately counting charge cycles is of little importance. Abuse in discharging (foremost), charging, and storing the battery and how it affects battery chemistry is important and not the ‘odometer’ reading, or cycle counts on the battery.
Everything boils down to battery chemistry long term, and not an arbitrary number, or cycle count.
Keep your macbook plugged in when near a socket since in the near end of long-term life, this is beneficial to the battery.
Peace

Questions about the future directions of InfoPath and Microsoft Access

Because I have been confused about the future directions of InfoPath and Access, I wrote a short blog post, which I have pasted below. My question is, can Microsoft provide some more guidance on Access vs InfoPath? If Access is indeed the
the future direction, can you please provide some pointers to resources that can help us transition.
A Short Review of MS Access, SharePoint ,InfoPath (2013)
After the November 2012 SharePoint Conference in Las Vegas (#spc12) there were a number of blog posts and people saying that Access 2013 was great and would be replacing InfoPath.
Marc Anderson and
Ruven
Gotz have short posts summarizing #SPC12 and touch on the subject of InfoPath and Access. I also spoke with several individuals shortly after #SPC12 and they were excited about Access 2013.
Since I rely heavily on InfoPath for much of what I do, I wanted to kick the tires and see what everyone was talking about. First, a few notes about SharePoint 2013 and Office 2013.
Microsoft should rename Access: If you have tried to
bing the word Access, then you know that the search results are overwhelming, because the word "access" is used for so many other purposes.
Use the RTM version of Office 2013! I was performing my investigations by leveraging the Office 365 Beta and the Office Applications that come with it. Not much was working! After I uninstalled the Beta
version of Office 2013 and Installed the RTM version everything seemed to work.
Windows 7 and IE 9.0: The drag & drop that is being touted as
"manna from heaven" seems to work well with Firefox, Safari, Chrome, and IE 10, but it does
not work with IE 9!
Non Microsoft browsers are still second class citizens (except for the drag & drop): Microsoft has finally done away with the Active X's for datasheet view (that is brilliant!) One can now see the newly
minted datasheet view in many browsers. But I still find that one needs to be in IE to do a number of key manual opeartions. For example pasting numerous rows of data from a spreadsheet into the new sheet view works only in IE.
Access 2013
Microsoft Access is touted as a non developer tool. I know a number of people who are on the business side and love Access. These people will like the renewed energy that Microsoft has applied to Access. One should note that conceptually
this functionality existed in SharePoint 2010. Here is what I see that is new:
+The new version works better:Although I haven't tested it fully, it seems that many more features that work on the Desktop version of Access, now work in the published Web Application which is hosted by SharePoint 2013.
+The new version has fairly robust browser based forms: End users can now fill in data using forms that are rendered in the browser.
+The published version that resides in SharePoint now uses its own SQL server tables. So the engine appears to be SQL Server, not a modified version of Access built for a server. This stands to be quite robust, but I imagine
that some quirks will surface due to new model.
The limitations are:
- Access is pretty much its own application and does not integrate with SharePoint building blocks. For example, an Access table is not easy to integrate with a SharePoint workflow. Further, although Access forms now are visible
in a browser, they are not nearly as rich as InfoPath forms. InfoPath forms cannot easily integrate with the Access tables. In order to integrate SharePoint features and Access, one needs to tie SharePoint list(s) to Access as data sources.
This overcomplicates the model and one may very well run into synchronization issues.
In short, although I believe there will be some people who will be happy with newly minted Access, I do not think that Access will be able to replace InfoPath and Workflow technologies. I do agree that Microsoft does not seem to have put much energy into
InfoPath. If they leave a vacuum in this space, then others may very well take over, for instance Nintex Forms.

Although I agree with the comments made by Ruven and Marc after the conference please note that those blog posts are their own personal opinions and that they don't work for Microsoft. A lot of people have asked Microsoft to clarify the future of InfoPath
and the response up until now has been a deafening silence. In my opinion speculations about Access replacing InfoPath are premature.
I should also point out that most of your comments about Access 2013 above are actually about Access Services in SharePoint Server 2013. Access Services are NOT Access they are a shared service offering in SharePoint that convert and publish Access
databases and forms. As you point out once an Access database is published through Access services it is converted to SQL Server and no longer resides in Access. Of course I don't work for Microsoft either so these are all just my personal opinion.
Having said that I doubt you will get the confirmation/response that you are hoping for from any official Microsoft channel.
Paul Stork SharePoint Server
MVP Principal Solutions Architect: BlueChip Consulting Group
Blog: http://dontpapanic.com/blog
Twitter: Follow @pstork
Please remember to mark your question as "answered" if this solves your problem.

The background behind my toolbar used to be gray but, after updating, is now black. How can I change it back to gray?

The background behind my toolbars and tabs at the top of the screen used to be gray, but, after updating firefox, is now black (or perhaps clear, because icons from my desktop show through as ghostly blurs). How can I change it back to gray?

See:
*[[/questions/804050]]
Right click in a free space on your desktop. 
Left click on Personalization. 
There are four options in Windows 7 at the bottom of the screen, choose "Window Color and Appearance". 
Select a border color 
Uncheck: "Enable transparency"

The reasoning behind aggregation rules at report level

Hello guys
I notice that in the answer criteria, we can define column formula of each columns in the request, but we can also set aggregation rules for the numeric columns..
I'd like to have a deeper understanding on how these settings work..
The Avg, Max, Min, Count are pretty clear and self-explanatory to me.
My main question is the difference between 'default', 'Server determined', 'complex server aggregate', and 'Sum'.
In a lot of the measure columns when the aggregate rule is 'default', when I do subtotaling in report views, I would actually get the right total amount by dimension columns, however there are also places in the report where the sub total is off, so I have to go and set the aggregate rule of that measure to 'Sum' then the total becomes correct 100%. When I try 'server determined', 'complex server aggregate', some measures change and some don't, but this is not in a pattern of change that I can understand the concept behind. The OBIEE documents said very little about this part
So is there more detailed information out there that explains more about what these options are doing?
Thanks in advance

Hi Shruthi,
To be clear you have one table 'DIM_LF_B' and its separated out as FACT and DIM in BMM layer with respective formulas ? If yes check this http://www.varanasisaichand.com/2012/04/fact-and-dimension-from-single-source.html
let me know if it is different
Thanks,
Saichand

How to change the engine's status

How to change the engine's status?
Thanks

In the process administrator there is a little play of stop button next to each engine.
This is only in enterprise or standalone version off course.
It this doesn't answer your question please supply some extra information.
Kind regards
Nils.

Three questions about the developer tools

At my company we have evaluated this very handy tool, and we have only three questions...
* Will the autocomplete feature be more intelligent. For example pl/sql developer recognize partially written table names and suggest a full name.
* How to debug and step through the procedures?? This is a MUST!!!!
* Is it possible to add source control integration (source safe) for the packages/procedures?
With these features, it will be super!!
/henrik

When I was at the VSLive in San Francisco back in February, I spent some time at the Oracle booth and I asked for Source Control also.
I was told to my happy suprise that lots of other developers had been asking for that also but I was shocked when the Oracle reps told me that they didn't understand why people would want this feature or how they would use it. They tried to convince me that "Generate Create Script" was what I wanted.
Btw, "Generate Create Script" ticks me off. It always sticks the package owner in the create script and when I check it back in VSS I have to go in and edit it back out!!!
It seems to me that the mindset behind many Oracle tools is to work "on the database". I will admit that I don't use many Oracle tools. I used Procedure builder a few times but thats about it. To me it seemed pretty clunky, but it was nice to be able to debug a stored procedure. Or it was until you crashed the SP and it became locked in the database and un-updatable without a bounce ;)
Most developers that I know, prefer to work "on their hard-drives" and publish to the database or some variation on that.
I would love to see a tool for editing SPs and Packages where I could check out my code, make a change, compile it on the DB, and check my changes back into the source control. One more catch, we use VSS's ability to update the version number in a source code file on check-in so the version that ends up in the DB should have the "new" version number in the comment header.
Also, the "Auto Code Generation" tool is not geared towards the type of code I write. I thought we were supposed to get away from writing data access code in our forms? Yet, this tool throws all kinds of stuff in for doing just that and no tools to make it easier (that I could find) to create a data acces layer for wrapping my stored procedures and packages. Where are these tools, Oracle? Help us write better code, not worse.
The autocomplete is nice, but I have trouble with it. For example, if I type a table name and "." it will bring up all the columns in the table. If I type "R" it scrolls to the first column that starts with "R". But if I type "S" next, instead of scrolling to the first column that starts with "RS" it spits out the currently selected column and sticks an "S" on the end. Other times it doesn't work at all.
The "Query" window is next to useless. It should work more like a SQL Plus (DOS) window. Or at the very least more like a SQL Server Query Analyzer Query window. I'll keep my SQL Plus until this is way better.
Hopefully the next version (or 2 or 3) will be better. I hope Oracle is listening. They did acknowledge that other developers were asking for some of the same improvements.

What is the logic behind the oracle database connections....

Hi,
We have crontab alerts are enabled for the oracle database client connection.
For Production databases the alerts are coming continuously until it gets connected.
For QA databases it will throw the message that the oracle client connection fails and again it will prompt whenever it gets connected.
Please let me know the logic behind these scnerions.
Pavan..
Edited by: dm_ptldba on Feb 14, 2012 6:45 AM

Hi,
Thanks for the update, Sorry the question was not clear. let me put it in a clear way.
Following is our crontab which alerts us if any database/listener goes down. But it alerts us only once for one successful/unsuccessful connection. For Eg: If the crontab not able to connect to the database for once then it throws an alert only once and waits for a successful connection.
I would like to change the logic in this crontab in such a way that, it should keep on alerting us for all the unsuccessful connections and once or twice for successful connection.
. /home/oracle/.bash_profile
. /opt/oracle/cron/cron_email
sidfile=/home/oracle/scripts/db-list.txt
dboutfile=/home/oracle/scripts/dboutfile.tmp
echo $ORACLE_HOME
TNS_DIR=$ORACLE_HOME/network/admin
ORA_BIN=$ORACLE_HOME/bin
cat $sidfile | while read SIDNAME
do
$ORA_BIN/sqlplus -s system/******@$SIDNAME 2> /dev/null >> $dboutfile <<EOF
@/home/oracle/scripts/db_up.sql
EOF
if [ $? -eq 0 ]
then
STATUS=1
if [ -f /home/oracle/scripts/${SIDNAME}-down.txt ]
then
/bin/mail -s "Alert :Oracle database instance \"${SIDNAME}\" is up & connected..." [email protected] </dev/null
rm -rf /home/oracle/scripts/${SIDNAME}-down.txt
fi
else
if [ -f /home/oracle/scripts/${SIDNAME}-down.txt ]; then
echo "";
else
touch /home/oracle/scripts/${SIDNAME}-down.txt
echo ${SIDNAME} "not Connected ..."
/bin/mail -s "Alert :Oracle database instance \"${SIDNAME}\" is down......" [email protected] </dev/null
fi
fi
done
Thank you.
PTLDBA

HT4436 I don't see the point of having to create another email account - could someone explain the thinking behind this please?

For iCloud syncing there are a few items that require a new iCoud email address to be created (eg. Notes and email), whilst the majority of other options do not require this.
My question is simply why do these items need yet another email address to be created? I would have though the Apple Id would have been sufficient to hang everything together...
If someone could explain the thinking behind this please I will hopefully be more comfortable with it and probably more likely to start using these features!
Thanks in advance!
Stuart

If TCP port 25 isn't open, then SMTP services won't work. That's the port that all SMTP servers use to communicate amongst themselves. (Sure, you can change the port your SMTP server is listening on, but you'd also have to change the port processing on all of the other SMTP servers around — and if you did manage to implement that change everywhere, the local network folks would likely just block the new port for the same reasons they blocked the old port.)
If you have a public static IP address and have correct forward and reverse translations — host domain to IP address, and IP address to host domain name — then you don't need and very likely don't want to run your own DNS server.
More to help you learn how these pieces fit together and not something I'd expect you would need given you have a public static IP and public DNS here is a detailed DNS server configuration article for OS X Server; enable Show All Records and it applies to Server.app on 10.7 and later. If you have questions after reading that, I can certainly answer them and also update the article to try to reduce the confusion or answer the question.
Your host didn't have valid reverse DNS, so you'll want to get that cleared up, and you'll want to get the port blocks cleared, or work with the local network folks to set up a relay through one of the existing mail servers.

Can I find the code behind a conversion Type in bW

Hi all,
I've created a converion type referencing 0mateiral and created a target variable to be used in a query. I was wondering where I can see the code behind the UOM converion that takes place.
thanks

Hi
Not sure I understand your question
But you can check RSUOM transaction code.
Regards
Anindya

What is the logic behind suggest due date in a planned order?

I have observed that suggest due date of a planned order is not based on demand. What is the logic behind derivation of suggest due date?
Some times pegging date is based on Sales Order request date but not all the times, how to interpret the pegging date of a planned order?
Please confirm that suggest ship date is based on the suggest due date and In-transit time and lead time.

HI,
Planning engine calculates the Sugg Due Date based on some mathematical calculations and some Plan setups.
It also depends on what option you have chosed in the plan, for Material availability i.e. at the start of the Job or at the start of operation.
For buy item-it will minus the pre, post and processing lead time from the Material requirement date for making the job based on above setup.
For make items, it will also consider Manufacturing lead time(based on the routing) and will show the Sugg due date
Please mark this post as correct or helpful, if it clears your concern.
Thanks,
Avinash

Question for the future..

...is it planned to enable Question for the future..
Is it planned to enable Smartphone/PDA software to use Adobe3D futures.
I think it is an essential question for travel engineering buiseness.
Regards
Lars

Hi,
My 5 years old computer works with only a minor problem but is has been fixed therefore I expect a 3 yrs old computer should work, but who knows !
Good luck.
BH
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Question on the engineering behind Swing

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