Some advice
Hi all,
I've been working on sybase database systems for years, but for a couple of months I also have been working on Oracle Database systems. What I am interested on is replication solutions for Oracle. I have tested quest's shareplex for a while I am not familiar for the other options such as oracle streams etc. Before I read the documents about these solutions, I am just wondering if someone who practically has the solutions in his/her system, can give me a clue about pros and cons of the solutions (shareplex, stream etc.)
P.S for the person who would like to send related documents, here is my e-mail:
[email protected]
Regards.
ALPER ONEY
Generally as far as classes are concerned, keep things object-oriented as best you can but bear in mind that you are working a little closer to the metal so sometimes you can't keep things as clean as you might want. Also, avoid creating your own threads as they can really confuse matters.
Compared to textures and geometry there is very little overhead on inactive behaviours- worry about it if it starts to become a problem...
I think you can share geometry, lights and other scene members using a SharedGroup - check the javadocs for more on this.
Similar Messages
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After some advice, I am new to Apple and looking to purchase either the MacBook Air 13inch with 256GB and 8GB mem or the MacBook Pro 13inch with retina 256Gb and 8GB mem. I am an assistant principal in a primary school and also studying my masters at university. I don't play computer games and I don't watch movies. I do store photos and videos of my kids and music on iTunes. I also like browsing the net with numerous windows open, check email etc. I am really wanting long battery life as I do a lot of my work on the couch - not close to a PowerPoint. Would the air do the trick or will it soon be outdated as Apple move towards retina display? Both air and pro seem very thin - almost the same? And not much difference in weight either so both very portable which is also a necessary requirement. Just can't help dreaming about that 12 hour claimed battery life. Any helpful advice/opinions, very much appreciated. Thanks
It's not likely that you'll get 12 hours in reql life. Those benchmarks are set under very strict controlled conditions. Kind of like mileage per gallon claims on cars. If 16GB of ram is an option at all I'd highly recommend you get that. As far as storage 256GB isn't alot, consider storing some things on an external thunderbolt real
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I started to replace my ipod 4g screen but the silver plate that goes on top of the battery won't go back into place. It's not lining up with the screw holes so i can't finish the repair. Please I'm begging you all to help me with some advice and tips!!!!!!!!!!!!!! It will be greatly appreeciated. ASAP
Your best bet is to email the company that sold you the screen for advice. Or you could search on YouTube for repair instructions. Hopefully, you will see where you went wrong. Apple will not do an out-of-warranty replacement on an iPod that has been opened.
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Need some advice on a new build for CS5 Web Premium
I am looking for a powerful PC that I can use mostly for work and some light video work. I have been looking at several systems, but I can't decide if I should get the Core i7 875K, 950 or AMD 1090T for my needs. I typically have many Adobe CS5 applications open at once like Photoshop, Dreamweaver, Illustrator and Flash, iTunes, Quickbooks, Microsoft Work and Excel. I would ideally like to buy a pre-built rig, but I can surely put together if better. Below are a few I have been looking at, but I am unsure about cooling on one of them and about the 875K processor on the other one. I figured a gaming PC would be fast and powerful as my needs are behond a standard base config. I would like some advice also on a good video card. Been looking at crossfire ATI HD 5770, single ATI HD 5870, Radeon 6870, and GeForce GTX 470 and SLI GTX 460. I am not a typical overclocker, but I can be if it will help performance running apps. I leave my PC on all day and night so cooling is a factor.
Thanks in advance everyone for the advice on this.
==========================================
Approximate Purchase Date: (the closer the better)
Budget Range: ($1000-$1500)
System Usage from Most to Least Important: (Web Development, Graphic Design, Internet, Movies))
Parts Not Required: (keyboard, mouse, monitor, speakers)
Preferred Website(s) for Parts: (newegg.com)
Country of Origin: (USA)
Parts Preferences: by brand or type (I would like to use an Intel Core i7 or AMD X6 CPU to power dual Big 27" Samsung LCDs via DVI and full or mid tower case)
Overclocking: Maybe
SLI or Crossfire: Maybe
Monitor Resolution: (1920x1080 each monitor)
=========================================
Here is my latest config. How does this one look?
Qty.
Product Description
Savings
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1
COOLER MASTER HAF 932 RC-932-KKN1-GP Black Steel ATX Full Tower Computer Case Item #: N82E16811119160Return Policy: Standard Return Policy
-$30.00 Instant
$159.98$129.98
1
Western Digital Caviar Black WD1002FAEX 1TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive Item #: N82E16822136533Return Policy: Standard Return Policy
$89.99
1
EVGA 012-P3-1470-AR GeForce GTX 470 (Fermi) 1280MB 320-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card Item #: N82E16814130550Return Policy: VGA Replacement Only Return Policy
$259.99
1
Nvidia Free Mafia 2 Game Coupon Item #: N82E16800999247Return Policy: Standard Return Policy
-$59.99 Saving
$59.99$0.00
1
CORSAIR HX Series CMPSU-850HX 850W ATX12V 2.3 / EPS12V 2.91 80 PLUS SILVER Certified Modular Active PFC Power Supply Item #: N82E16817139011Return Policy: Standard Return Policy
-$30.00 Instant
$20.00 Mail-in Rebate Card17-139-011
$189.99$159.99
1
G.SKILL Ripjaws Series 12GB (3 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9T-12GBRL Item #: N82E16820231358Return Policy: Memory Standard Return Policy
$269.99
1
LG Black 10X Blu-ray Burner - Bulk SATA WH10LS30 LightScribe Support - OEM Item #: N82E16827136181Return Policy: Standard Return Policy
$109.99
1
Intel Core i7-950 Bloomfield 3.06GHz LGA 1366 130W Quad-Core Processor BX80601950 Item #: N82E16819115211Return Policy: CPU Replacement Only Return Policy
ASUS Sabertooth X58 LGA 1366 Intel X58 SATA 6Gb/s USB 3.0 ATX Intel Motherboard Item #: N82E16813131665Return Policy: Standard Return Policy
-$5.00 Instant
-$14.99 Combo
$499.98$479.99
1
Crucial RealSSD C300 CTFDDAC128MAG-1G1 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD) Item #: N82E16820148348Return Policy: Limited Replacement Only Return Policy
Microsoft Windows 7 Professional 64-bit 1-Pack for System Builders - OEM Item #: N82E16832116758Return Policy: Software Standard Return Policy
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$419.98$379.98
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$1,895.87Here is the final config I am looking to get. I am just debating the hard drive config and video cards. I want to be sure my video card will use teh GPU Accelleration and Advance features of Photoshop CS5. Do you know if the NVIDIA GTX 460 is compatable or should I spend more for the 470? I will not be gaming much and this pc is used mostly for work on CS5 Web Premium. How does this all look? All prices from NewEgg. I have another machine I will backup sata to each evening, so I really want a fast drive for program load and operation and another drive for data. What is best way to config drives? Should I get 2 of them and an SSD?
Qty.
Product Description
Savings
Total Price
1
EVGA GeForce GTX 470 (Fermi) 012-P3-1470-AR Video Card
Item #:N82E16814130550
Return Policy: VGA Replacement Only Return Policy
$259.99
1
Nvidia Free Mafia 2 Game Coupon
Item #:N82E16800999247
Return Policy: Standard Return Policy
$59.99
1
COOLER MASTER HAF 932 RC-932-KKN1-GP Black Computer Case With Side Panel Window
Item #:N82E16811119160
Return Policy: Standard Return Policy
-$30.00 Instant
$159.98
$129.98
1
G.SKILL Ripjaws Series 12GB (3 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory
Item #:N82E16820231358
Return Policy: Memory Standard Return Policy
$269.99
1
LG Black 10X Blu-ray Burner - Bulk SATA WH10LS30 LightScribe Support
Item #:N82E16827136181
Return Policy: Standard Return Policy
$109.99
1
CORSAIR HX Series CMPSU-850HX 850W Power Supply
Item #:N82E16817139011
Return Policy: Standard Return Policy
-$30.00 Instant
$20.00 Mail-in Rebate Card
$189.99
$159.99
1
Western Digital Caviar Black 1TB 3.5" SATA 6.0Gb/s Internal Hard Drive -Bare Drive
Item #:N82E16822136533
Return Policy: Standard Return Policy
$89.99
1
ASUS Sabertooth X58 ATX Intel Motherboard
Item #: N82E16813131665
Return Policy: Standard Return Policy
Intel Core i7-950 3.06GHz LGA 1366 130W Quad-Core Processor
Item #: N82E16819115211
Return Policy: CPU Replacement Only Return Policy
-$5.00 Instant
-$14.99 Combo
$499.98
$479.99
1
Microsoft Windows 7 Professional 64-bit 1-Pack for System Builders
Item #: N82E16832116758
Return Policy: Software Standard Return Policy
Crucial RealSSD C300 CTFDDAC128MAG-1G1 2.5" MLC Internal Solid State Drive (SSD)
Item #: N82E16820148348
Return Policy: Limited Replacement Only Return Policy
-$10.00 Instant
-$30.00 Combo
$419.98
$379.98
Grand Total:
$1,879.90 -
Can anyone offer some advice i am looking to upgrade the OS system on one of my macbook pro's, currently running os10.4.11, I would like to upgrade to OS10.5? how would I go about this, and is there a cost, for what is an old operating system now?
Since your Mac probably came with 10.4, there is no longer a way to get 10.5 Leopard install media. IF it has the requirements, you may be able to upgrade to 10.6 Snow Leopard by buying the boxed install media at the Apple Store for $30.
System requirements are found here: http://support.apple.com/kb/SP575
General support can be found here: http://www.apple.com/support/snowleopard/ -
Hi. Hope this is right forum. First post. A brief background. Years ago (2007-2008) I created a web portfolio for school. First it was in HTML (Dreamweaver) and then Flash. I hadn't really touched it in years and decided this past couple of months, after playing in the medium again, to get back into wed design, 3d, and digital content creation. That said, I went in and updated both the HTML and Flash versions with the knowledge I currently have, limited though it is. I now would like to go forward and build a completely new site and teach myself HTML, JavaScript, and WebGL along the way (possibly before hand). Hopefully I'll get working on the new site before the end of the year. In the mean time, I'm using my old site as a stop-gap measure. I've also taken books out from the library to begin journey into the above mentioned languages.
This all said, I'm looking for some advice on what direction I should go next...look into... Does my current objective seem reasonable? Also, could anyone give feedback on what I did wrong and what I've done right on my old site. I think, as far as what went wrong, the Flash page is just too large. No one wants to wait so long for it to load. I think I got carried away with it. Also, too many sound effects. That said, I think the HTML site was constructed in an "old-fashion" way. No one makes sites like that anymore. I basically set it up in Photoshop, sliced it, and assembled it in Dreamweaver. The end result is a bunch of tables in HTML? A friend suggested I look into a CMS (?) like WordPress?
Here's my current site: http://www.personal.kent.edu/~mstingle/
Constructive feedback on what I did right and wrong would be great. And, where I should be looking next for rebuild of my portfolio.
Cheers.WebGL is still experimental. Most browsers don't fully support it yet.
http://caniuse.com/webgl
The current trend is Responsive Web Design -- layouts that work in all devices (mobile, tablet and desktop). This technology relies on CSS layouts (no tables) with media queries for different viewport widths. Below is a crude example built with the FluidGrid Layouts feature in DW CS6 or CC:
http://alt-web.com/FluidGrid/Fluid2.html -- resize your browser's viewport to see it in action.
Flash is dead on the web now because the world's most popular mobile & tablet devices don't support it. Animations are mostly being built with HTML5, CSS3 and JavaScript. See Adobe Edge Animate.
If you're not a skilled coder and just want a basic static web site, Adobe Muse might be all you need. http://www.adobe.com/products/muse.html That said, Muse cannot support server-side programming so you can't use it for advanced features like CMSs, blogs, etc...
If you're a Creative Cloud member, you can use Behance & ProSite to build & share your portfolio online.
http://www.adobe.com/products/creativecloud/behance-community.html
http://prosite.com/
In terms of your own site, ask yourself how much content & which features it will need to support in the coming months/years. If it's going to be a relatively small site (under 20 pages), a static HTML site is probably all you need. IMO, WordPress -- a dynamic CMS built with PHP & MySql databases -- would be overkill. However, if you plan to make your site into a blog for example, then a dynamic CMS is an option to consider. WordPress isn't the only kid on the block either. There's also Drupal, Joomla!, and many more...
Nancy O. -
Looking for some advice on what to do about
So I have a macbook pro - late 2007 model I guess
2.16 core duo(just before the core 2 duo's i guess)
2gig's ram
ATY,RadeonX1600 256mb
My problem itself is in 3 parts
1.) My battery fried late 2008(have it running off the adapter since) and I was wondering if my model will fit with the 2008 model batteries? If so do you know how much it would cost(cdn dollars if possible)
2.) My video card is from what I believe to be ruined/terrible shape. I've been using SMC fan control for awhile to sway the overheating, and it helps but I believe the damage was already done while I did not have it active while using my computer for games and other various things(MBP's seem to run insanely hot?)
I will be calling the apple store i bought it from tomorrow but I was looking for some advice on any type of diagnostic tests I might be able to do to test my video card as well how much would it cost to replace(assuming you can't upgrade much in a laptop)
3.) Wondering your opinion on the overall value of the computer with the replacements/without.
It appears to run perfectly fine though sometimes when program's open up I start to see tearing and pixel's looking crazy all over my screen(assuming a fried video card)You can buy the battery design for any old MacBook Pro models (not the unibody). MacBook Pro from the first to the last generation uses the same battery. It cost $129 (not sure how much it cost in Canadian but probably a $20-$30 premium). As for your graphics card, Apple has a one price model for all hardware repairs ($310 or something around there and converted to Canadian probably around $350 to $360). I think you should get it replaced. The only test that I can think of is to re-install the OS and see if the problem occurs, if it does then its most likely a hardware issue. There is no standard test that's widely available. With the replacement I think the computer values in the range of $1800 to $1500) and without the repair I would say about $1350 to $1000 at best.
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Looking for some advice on CEP HA and Coherence cache
We are looking for some advice or recommendation on CEP architecture.
We need to build a CEP application that conforms to the following:
• HA with no loss of events or duplicate events when failing over to the backup server.
• We have some aggregative rules that needs to see all events.
• Events are XMLs with size of 3KB-50KB. Not all elements are needed for the rules but they are there for other systems that come after the CEP (the customer services).
• The XML elements that the CEP needs are in varying depth in the XML.
Running the EPN on a single thread is not fast enough for the required throughput mainly because network latency to the JMS and the heavy task of parsing of the XML. Because of that we are looking for a solution that will read the messages from the JMS in parallel (multi thread) but will keep the same order of events between the Primary and Secondary CEPs.
One idea that came to our minds is to use Coherence cache in the following way:
• On the CEP inbound use a distributed queue and not topic (at the CEP outbound it is still topic).
• On the CEPs side use a Coherence cache that runs on the CEPs JVMs (since we already have a Coherence cluster for HA).
• Both CEPs read from the queue using multi threading (10 reading threads – total of 20 threads) and putting it to the Coherence cache.
• The Coherence cache is publishing the events to both CEPs on a single thread.
The EPN looks something like this:
JMS adapter (multi threaded) -> replicated cache on both CEPs -> event bean -> HA adapter -> channel -> processor -> ….
Does this sounds sound to you?
Are we over shooting here? Is there a simpler solution for our needs?
Is there a best practice for such requirements?
ThanksHi,
Just to make it clear:
We do not parse the XML on the event bean after the Coherence. We do it on the JMS adapter on multiple threads in order to utilize all the server resources (CPUs) and then we put it in the replicated cache.
The requirements from our application are:
- There is an aggregative query that needs to "see" all events (this means that we need to pass all events thru a single processor and we cannot partition them to several processors).
- Because this is a HA solution the events on both CEPs (primary and secondary) needs to be at the same order when reaching the HA inbound adapter and the processor.
- A single thread JMS adapter is not reading the messages from the JMS fast enough mainly because it takes time to parse the XML to an event.
- Using a multi-threaded adapter or many single threaded adapters with message selector will create a situation that the order of events on both CEPs will not be the same at the processor inbound.
This is why we needed a mediator so we can read in multiple threads that will parse the XMLs in parallel without concerning on order of messages and on the other hand publish all the messages on a single thread to the processors on both CEPs from this shared mediator (we use a replicated cache that runs on both JVMs).
We use queue instead of topic because if we read the messages from a topic on both CEPs it will be stored twice on the Coherence replicated cache. But if we use a queue, when server 1 read the message and put it in the Coherence replicated cache then server 2 will not read it because it was removed from the queue.
If I understand correctly you are suggesting replacing the JMS adapter with an event bean that will read the messages from the JMS directly?
Are you also suggesting that we will not use a replicated cache but instead a stand alone cache on each server? In this case how do we keep the same order of events on both CEPs (on both caches)? -
I have brought a 17'' MacBook Pro 2.5ghz core 2 duo 2gb. Model A1261. It seems I can upgrade to either 8gb or 16gb ram! But since It's 2006'ish, I just want some advice on the best ram that would work for a good price. Thanks :)
Keiran420 wrote:
8 gb will do I guess
Based on the information that you have supplied, you have a Early or Late 2008 MBP. Maximum RAM that it will accept is 6 GB with the following specifications: 200-pin PC2-5300 (667MHz) DDR2 SO-DIMM.
The best sources for Mac compatible RAM are OWC and Crucial.
Ciao. -
Some advice - about to buy new Mac Mini.
Hi everyone - I'm hoping that someone can help me out with some advice.
I'm a former blackberry user and not a mac user, so I hope I'm clear in my explanation.
My mother is a PC user currently and owns a Blackberry Curve 8900. Actually, she and my dad both do, and currently use the PC to sync their (shared) calendar and contacts from one login in Windows XP to both of their blackberries. Yep, they're at that stage where they really don't need independent contacts or calendar. They sync with USB and curerntly use Outlook -- so no Exchange integration is needed for push email/etc.
Anyway, the PC is on its absolute last legs and I was thinking of migrating them over to a new Mac Mini since she's never really gotten the hang of Windows XP and I'm guessing that she'll do better on the Mac OS. Plus her friends all use Macs and I'm hoping they can help her. I'm guessing we'll just get them the latest version of Entourage with their new Mac.
I've been holding off migrating them to this until the Blackberry Desktop Manager for Mac was available because the Blackberry Desktop Manager on their PC is one of the few things that works really well for them. They're used to the interface, and it just works.
So, now that it's available I was looking through the forums here and it looks like there might be some issues with it that are persistent? I've seen references to 32 bit vs 64 bit and other sorts of stuff that I don't quite get.
Can anyone tell me if the new system for them would just work? Maybe someone out there has a similar configuration?
Or should I hold off or just consider moving them to a new Windows PC instead?
So it would be:
* 2 Blackberry Curve 8900s syncing to a single shared set of contacts and calendar using Blackberry Desktop Manager. They don't do email sync and probably won't make much use of audio sync. Images, though, yes.
* Brand new Mac Mini, which evidently comes with Mac OS X 10.6 (I don't know if it is 32 bit or 64 or what??)
* Sync to Entourage from Office 2008
thanks in advance,AaronLet me respond. First 10.6 (known as Snow Leopard) enables 64 bit technology...you can read this for more info:
http://www.apple.com/macosx/technology/
Now as far as sync goes...Unfortunately there is no perfect solution. Why? BB, Entourage, Mac Address Book & iCal do not share identical "fields". So it is impossible to get them to all have the same info. The truth of the matter is, I do not think your parents will need to constantly sync the contacts...seriously how many new people do they met to add to their contact list? It is probably a one time...let me get all of their contacts on the computer and the devices. Now the calendar does need to be synced regularly. Some have had no issues with the sync between iCal and BB...others...well a different story. I migrated my parents (both sets) to Mac about 8-10 years ago. Why, because Mac software (OS included) is so much easier for them to understand and use. I also do the technical support (which I can do remotely with screen sharing) which is easier for me (and there are not many issues). I use mobile me and we have contacts and calendars synced across the family...all automated (if I make a change they get it within seconds). Hope this helps.
4.6.1.305 hybrid
Mac Pro 2X2.8 Quad SL -
I'm trying to downgrade my storage on my ipod but when I chose my new storage i'm not able to complete the choice because the 'done' button doesn't do anything. can someone please give me some advice?
Are you choosing a different plan before tapping Done?
To downgrade, you should be doing the following:
Go to Settings > iCloud > Storage & Backup.
Tap Change Storage Plan.
Tap Downgrade Options and enter your Apple ID password.
Choose a different plan to use when your current storage plan expires.
Tap Done. -
Where to begin? Need some advice
Greetings all,
I've been poking around here trying to find a topic that matches my question and have not had much luck. Here is my situation.
I'm back into photography after many years and, of course, am coming from the traditional film and darkroom days and now find myself drinking from a fire hose trying to master digital photography.
I want to use Photoshop but would appreciate some advice on how best to learn it? Can you folks recommend what you consider the best books for a total neophyte to Photoshop to use to learn the fundamentals?
Thanks for any advice you can offer.
Paul McCain
Saint LouisI was surpised to see that was from back in April; I would have said September or October, if pressed to guess when the thread ran. Glad I have it bookmarked, and archived on my hard drive.
If it ever
would
be considered for an addition to the FAQs, I hope someone asks me first, because there are a few things I'd like to add and clarify before it gets all sticky. -
Hi guys,
At the moment I am doing an internship somewhere, and I am supposed to visualise some data from an Oracle database into a Google Map.
The data should be fake, because the application will be a showcase.
I need some start-up hints, because actually I don't know where to start and with which programs.
First of all a little background.
The following programs are installed on my laptop:
- Oracle DB (1013)
- Oracle Example Schemas
- Oracle WebLogic (103)
- Oracle BI enterprise (101340)
- JDeveloper
This is what I want:
- Create a database or schema with fake data. The fake data should consist of addresses. (for the Google Map)
- The combination with BI enterprise is a requirement, part of the internship programme.
- Combination with Google map functionality.
Maybe someone can give me some advices in how to begin. Which techniques I should use or some useful tutorials.
I would really appreciate if someone can give me a heads up!The [Oracle by Example|http://www.oracle.com/technology/obe/obe_bi/bi_ee_1013/index.html] website has many good step by step tutorials on OBIEE so that would be a good start. Having said OBIEE doesn't support "heat maps" or overlaying data on maps out of the box. They are some 3rd party tools out there but I don't think you want to go there. From my point of view anyone asking you to use OBIEE to overlay data on Google Maps doesn't know what OBIEE should be used for (and probably doesn't know Google Maps either).
-
Need some advice on this big project
Hello there!
Let me introduce myself. My name is Wisse and I have been working with Adobe products since I was a child at the age of 8 (10 years ago). Well, then it was called Macromedia Flash but you understand what I mean.
I have always been using flash for making animations and small simple applications (for presentations and games) in my spare time. I also use photoshop and dreamweaver for making sites and other things. So I will soon order the new CS5 web design collection.
I have a big (biggest so far) project coming up and before I really started I thought it'd be best to orient on what Flash application(s) to use and how I will make this project. So here is the plan:
I am making a dutch driving exam site where people can take practice exams for a small text message fee. The application will have to look slick and work smoothly. I made this to clarify what the application has to do.
I have never worked with Flash Builder and Catalyst but I kind of like the idea of making nice looking interfaces using Catalyst and then export them to Flash Builder. But as I just said, I have never worked with Flash builder and so I don't know whether I will be able to make this on Flash Builder (due to it's complexity). Flash builder also has some nice options for accessing external data (the XML, HTTP API and PHP in this case). Catalyst's data list designer and transition animator will save a lot of time and effort when compared to doing it manually in Flash Pro. The big issue here is that I have no idea how to script the rest in Flash builder. the 5 day course might help, but I want to make to be sure that Builder is the best way to go before doing so.
But on the other hand, I am quite familiar with flash and that could also save time. Flash is a bit harder to use when I want to make a good UI and Flash builder wins when you look at the server communication and the debugging tools.
So I would like some advice from some fellow Adobe users. What would you do? What would be the best way for me to go, according to you?
Thanks in advance,
Wisse Jelgersma.Just to elaborate,
The shape and look of the outside of a car is defined by A) its colour and B) the reflections of the light sources on its surface.
It's relatively easy to change the colour of the shell of the turtle, but making it look reflective is much harder (I didn't do a very good job myself), especially if you also want to keep the textures of the shell somewhat intact.
To light the shell you need to consider what the light sources are that are hitting the shell when it is outside. Reflections of the sky and clouds should be brighter, reflections of the ground should be darker.
In my attempt, I overlaid a landscape picture, warped to roughly follow the shape of the car, then played around with blend modes and opacity and colouration to achieve the above effect. (Although the "specular" highlights could stand to be brought up a bit more). In practice, making this look realistic is probably beyond my skill set.
Then I added the lightning bolt and wheels for fun.
Mike -
hi,all
I began to learn BW a little more than three months ago. During this time,
I found myself becoming interested in it. I, therefore, am determined to
learn it well.
But our project is just at the start, and the external consultants seem unwilling
to teach me .
what should i do.
Please give me some advice on how to do a good job in it and how to get along well with the consultants.Hi Lawrence,
Try to use SDN as much as you can... Search in forums what ever doubts you have and post your doubts... Try to do some test developments if you have a Development system... It will take time for you to work like the other consultants... but Only way to learn BW is to acquire the Practical Knowledge....search all How to do stuff in forum...
All the Best
Cheers,
Sudhakar. -
Business Delegate pattern - need some advice
Hi. First let me apologize for the long post. I could see no other way. I�m building a system that quite large and I need some advice. The system is a type of transaction system, let�s suppose a shopping cart. I�m using struts taglibs and tiles for presentation, struts proper for controller, and POJOs for business logic. Also I�m using OJB for my data tier.
Now I�ve been reading Pro Jakarta Struts (Apress), which BTW is a recommended read to anyone with novice experience in struts and related technologies. I�ve assimilated most of the techniques and patterns described in the book, and most of them make sense to me. However, I�ve hit a snag while reading the Business Delegate and Service Locator patterns.
The way I had though of building my application before reading the book, was to have a wrapper class, such as the following:
public class ShoppingCart {
private IAuthenticationService authenticationService;
private ITransactionService transactionService;
public ShoppingCart() {
authenticationService = new DBAuthenticationService();
authenticationService = new DBTransactionService();
public login(String username, String password) {
String sessionToken = authenticationService.logon(username, password);
return sessionToken;
private boolean isValidUser(sessionToken) {
bolean validUser = authenticationService.isValidUser(sessionToken);
return validUser;
public performTransaction(sessionToken, TransactionVO) {
if (!isValidUser(sessionToken) {
throw new AuthenticationException();
transcationService.performTransaction(TransactionVO);
public editPreferences(sessionToken, PreferencesVO) {
if (!isValidUser(sessionToken) {
throw new AuthenticationException();
authenticationService.performTransaction(PreferencesVO);
}My idea was that my wrapper class would isolate all the business logic and could perform login service in case my application was ever to be used with other presentation layer than struts (standalone client, web services). However I believe that this overlaps the Business Delegate pattern and maybe even totally implements it. The way I understand the code I�m reading in the book, they suggest having a BD for each major service such as AuthenticationServiceBD, TransactionServiceBD, etc� However this would break my single point of entry for authenticating users. I really need some advice on my design and how it fits with the BD and SL patterns (or others). I would also like to know what you think/recommend of my authentication strategy.
thanks in advance
RaphaelThanks for your reply. This however, I understood. My concern is regarding my application in regards to business delegate pattern. You see I have this class (simplified for clarity):
public class ShoppingCart {
private ILoginService ls = new DBLoginService();
private ITransactionService ts = new DBTransService();
// and so on for all services I offer.
// then I mirror all the calls of my private interfaces
// and pass them through internally
public String sessionToken login(String username, String password) {
ls.login(username, password);
public boolean addToCart(sessionToken, itemNo) {
// check session
ts.addToCart(sessionToken, itemNo);
// and so on
}Multiple questions for this one:
1) Am I not already implementing the Business Delegate pattern with my ShoppingCart class since all interfaces are private and all calls are mirrored from the wrapper class (ShoppingCart) to the private interfaces? All services are implemented as POJOs and I am not using JNDI at the present so I don't use the ServiceLocator pattern.
2) I store a reference to the wrapper class (ShoppingCart) in the ServletContext so I can grab it from my Action classes. What do you think of this approach?
3) How many BDs should an application contain. In my case I use just one. What is the advantage of using more?
4) I create my own session tokens in case I ever want to use to business code in a non-web applications where sessions are not available readily. This brings about the problem that I can't pass the interfaces directly to the Action classes because the login session needs to be checked before any calls to services. So all methods include a sessionToken parameter which I use to check the session. This way, if I want to expose some of the services through web services, I can still use a login. What do you think of this approach.
5) Any other remarks are very welcome...
I really need help with this from an experienced programmer. Most things I can handle on my own but with this type of design issue, books just don't cut it. I need experience. I would really apreciate some feedback.
Raphael
ps: I would give all my Duke dollars for this (I only have 30), but I'm not sure how. If you want them I can create a dummy question and give them to you.
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