Best practices for DAO with relationships

Suppose I have have a relationship structure similar to this:
School -> 1:M -> Classrooms -> 1:M -> Students -> 1:M TextbooksShould I have 4 DAOs? (SchoolDAO, ClassroomDAO, StudentDAO, TextBookDAO)...
How would be the best way to insert a Student?
Would I insert the Student from the ClassroomDAO (because I need to know the ClassroomID in order to insert a Student)? Or would it be better design-wise to insert a Student in the StudentDAO, and assume the correct ClassroomID has been retrieved before the insert?
I guess this sounds a lot like an ORM tool -- we've tried to use Hibernate in the past but we're working against a large legacy database and we've had lots of trouble hooking hibernate up to it. We're trying to construct a nice DAO layer because the app is lacking a good one -- but I'd like to make sure we're following the best practices.
Thanks, Kevin

kp5150 wrote:
Suppose I have have a relationship structure similar to this:
>
>
Should I have 4 DAOs? (SchoolDAO, ClassroomDAO, StudentDAO, TextBookDAO)...Just noting that that doesn't seem realistic. Either the students own the books or the school does.> School -> 1:M -> Classrooms -> 1:M -> Students -> 1:M Textbooks
If the first then a school system wouldn't track them. If the second then you need ownership in the database that reflects that.
And students are not part of a class room but rather part of a class. Classes are held/scheduled in class rooms.
Additionally best practices generally dictate that table names should not be plural unless they contain sets (plural of set) data.
>
How would be the best way to insert a Student?
Would I insert the Student from the ClassroomDAO (because I need to know the ClassroomID in order to insert a Student)? Or would it be better design-wise to insert a Student in the StudentDAO, and assume the correct ClassroomID has been retrieved before the insert?
Probably irrelevant. You could do one or the other or even both. In one case you have a class to which a student is added. In the other you have a student and add them to a class.
I guess this sounds a lot like an ORM tool -- we've tried to use Hibernate in the past but we're working against a large legacy database and we've had lots of trouble hooking hibernate up to it. We're trying to construct a nice DAO layer because the app is lacking a good one -- but I'd like to make sure we're following the best practices.Huh?
If you have a unrealistic datamodel (like the above) then that is the cause of problems, not a tool.
But in a generic sense if you have the following
A -> 1:M -> B -> 1:M -> C -> 1:M D
Then that is easy for tools to handle.

Similar Messages

Best practice for dealing with Recordsets

Hi all,
I'm wondering what is best practice for dealing with data retrieved via JDBC as Recordsets without involving third part products such as Hibernate etc. I've been told to NOT use RecordSets throughout in my applications since they are taking up resources and are expensive. I'm wondering which collection type is best to convert RecordSets into. The apps I'm building are webbased using JSPs as presentation layer, beans and servlets.
Many thanks
Erik

There is no requirement that DAO's have a direct mapping to Database Tables. One of the advantages of the DAO pattern is that the business layer isn't directly aware of the persistence layer. If the joined data is used in the business code as if it were an unnormalized table, then you might want to provide a DAO for the joined data. If the joined data provides a subsiduray object within some particular object, you might add the access method to the DAO for the outer object.
eg:
In a user permissioning system where:
1 user has many userRoles
1 role has many userRoles
1 role has many rolePermissions
1 permission has many rolePermissions
ie. there is a many to many relationship between users and roles, and between roles and permissions.
The administrator needs to be able to add and delete permissions for roles and roles for users, so the crud for the rolePermissions table is probably most useful in the RoleDAO, and the crud for the userRoles table in the UserDAO. DOA's also can call each other.
During operation the system needs to be able to get all permissions for a user at login, so the UserDAO should provide a readPermissions method that does a rather complex join across the user, userRole, rolePermission and permission tables..
Note that f the system I just described were done with LDAP, a Hierarchical database or an Object database, the userRoles and rolePermissions tables wouldn't even exist, these are RDBMS artifacts since relational databases don't understand many to many relationships. This is good reason to avoid providing DAO's that give access to those tables.

What is best practice for dealing with Engineering Spare Parts?

Hello All,
I am after some advice regarding the process for handling engineering spare parts in PM. (We run ECC 5)
Our current process is as follows:
All materials are set up as HIBE's
Each material is batch managed
The Batch field is used for the Bin location
We are now looking to role out PM to a site that has in excess of 50,000 spare parts and want to make sure we use best practice for handling the spare parts. We are now considering using a basic WM setup to handle the movement of parts.
Please can you provide me with some feedback on what you feel the best practice is for dealing with these parts?
We are looking to set up a solution that will us to generate pick lists etc and implment a scanning solution to move parts in and out of stores.
Regards
Chris

Hi,
I hope all the 50000 spare parts are maintained as stock items.
1. Based on the usage of those spare parts, try to define safety stock & define MRP as "Reorder Point Planning". By this, you can avoid petty cash purchase.
2. By keeping the spare parts (atleast critical components) in stock, Planned Maintenance as well as unplanned maintenance will not get delayed.
3. By doing GI based on reservation, qty can be tracked against the order & equipment.
As this question is MM & WM related, they can give better clarity on this.
Regards,
Maheswaran.

Best practices for dealing with Exceptions on storage members

We recently encountered an issue where one of our DistributedCaches was terminating itself and restarting due to an RuntimeException being thrown from our code (see below). As usual, the issue was in our own code and we have updated it to not throw a RuntimeException under any circumstances.
I would like to know if there are any best practices for Exception handling, other than catching Exceptions and logging them. Should we always trap Exceptions and ensure that they do not bubble back up to code that is running from the Coherence jar? Is there a way to configure Coherence so that our DistributedCaches do not terminate even when custom Filters and such throw RuntimeExceptions?
thanks, Aidan
Exception below:
2010-02-09 12:40:39.222/88477.977 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=48): An exception (java.lang.RuntimeException) occurred reading Message AggregateFilterRequest Type=31 for Service=DistributedCache{Name=StyleCache, State=(SERVICE_STARTED), LocalStorage=enabled, PartitionCount=1021, BackupCount=1, AssignedPartitions=201, BackupPartitions=204}
2010-02-09 12:40:39.222/88477.977 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=48): Terminating DistributedCache due to unhandled exception: java.lang.RuntimeException

Bob - Here is the full stacktrace:
2010-02-09 13:04:22.653/90182.274 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=47): An exception (java.lang.RuntimeException) occurred reading Message AggregateFilterRequest Type=31 for Service=DistributedCache{Name=StyleCache, State=(SERVICE_STARTED), LocalStorage=enabled, PartitionCount=1021, BackupCount=1, AssignedPartitions=205, BackupPartitions=204}
2010-02-09 13:04:22.653/90182.274 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=47): Terminating DistributedCache due to unhandled exception: java.lang.RuntimeException
2010-02-09 13:04:22.653/90182.274 Oracle Coherence GE 3.4.2/411 <Error> (thread=DistributedCache:StyleCache, member=47):
java.lang.RuntimeException: java.lang.ClassNotFoundException: com.edmunds.vehicle.Style$PublicationState
     at com.edmunds.common.coherence.EdmundsEqualsFilter.readExternal(EdmundsEqualsFilter.java:84)
     at com.tangosol.io.pof.PortableObjectSerializer.initialize(PortableObjectSerializer.java:153)
     at com.tangosol.io.pof.PortableObjectSerializer.deserialize(PortableObjectSerializer.java:128)
     at com.tangosol.io.pof.PofBufferReader.readAsObject(PofBufferReader.java:3284)
     at com.tangosol.io.pof.PofBufferReader.readAsObjectArray(PofBufferReader.java:3328)
     at com.tangosol.io.pof.PofBufferReader.readObjectArray(PofBufferReader.java:2168)
     at com.tangosol.util.filter.ArrayFilter.readExternal(ArrayFilter.java:243)
     at com.tangosol.io.pof.PortableObjectSerializer.initialize(PortableObjectSerializer.java:153)
     at com.tangosol.io.pof.PortableObjectSerializer.deserialize(PortableObjectSerializer.java:128)
     at com.tangosol.io.pof.PofBufferReader.readAsObject(PofBufferReader.java:3284)
     at com.tangosol.io.pof.PofBufferReader.readAsObjectArray(PofBufferReader.java:3328)
     at com.tangosol.io.pof.PofBufferReader.readObjectArray(PofBufferReader.java:2168)
     at com.tangosol.util.filter.ArrayFilter.readExternal(ArrayFilter.java:243)
     at com.tangosol.io.pof.PortableObjectSerializer.initialize(PortableObjectSerializer.java:153)
     at com.tangosol.io.pof.PortableObjectSerializer.deserialize(PortableObjectSerializer.java:128)
     at com.tangosol.io.pof.PofBufferReader.readAsObject(PofBufferReader.java:3284)
     at com.tangosol.io.pof.PofBufferReader.readObject(PofBufferReader.java:2599)
     at com.tangosol.io.pof.ConfigurablePofContext.deserialize(ConfigurablePofContext.java:348)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.Service.readObject(Service.CDB:4)
     at com.tangosol.coherence.component.net.Message.readObject(Message.CDB:1)
     at com.tangosol.coherence.component.net.message.requestMessage.distributedCacheRequest.partialRequest.FilterRequest.read(FilterRequest.CDB:8)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache$AggregateFilterRequest.read(DistributedCache.CDB:4)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onNotify(Grid.CDB:117)
     at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache.onNotify(DistributedCache.CDB:3)
     at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:37)
     at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: com.edmunds.vehicle.Style$PublicationState
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:169)
     at com.edmunds.common.coherence.EdmundsEqualsFilter.readExternal(EdmundsEqualsFilter.java:82)
     ... 25 more
2010-02-09 13:04:23.122/90182.743 Oracle Coherence GE 3.4.2/411 <Info> (thread=Main Thread, member=47): Restarting Service: StyleCacheOur code was doing something simple like
catch(Exception e){
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}Would using the ensureRuntimeException call do anything for us here?
Edited by: aidanol on Feb 12, 2010 11:41 AM

Best practice for dealing with Recordsets, JDBC and JSP?

I've spent the last three years developing web apps using JSP, Struts and Kodo JDO for persistence. All of the content for the apps was created as Java objects using model classes and saved to an Oracle db. Thus, data retrieved from the db was as instances of the model classes and then put into Struts form beans, etc.
I changed jobs last month and am now having to use Servlets with JDBC to retrieve records from db tables and returning it into Recordsets. Oh, and I can't use Struts in my JSPs either. I'm beginning to think that I had it easy at my previous job but maybe that's just because I was used to it.
So here are my problems/questions:
I have two tables with a one to many relationship that I need to retrieve data from, show in a jsp and be able to update eventually.
So here's what I am doing:
a) In a servlet, I use a SQL statement to join the tables and retrieve the results into a Recordset.
b) I created a class with a bunch of String attributes to copy the Recordset data into, one Recordset row per each instance of the bean and then close the Recordset
c) I then add the beans to an ArrayList and save the ArrayList into the session.
d) Then, in the JSP, I retrieve the ArrayList from the session and iterate over each bean instance, printing the data out to the jsp. There are some logic statements to determine when not to print redundant data caused by the one to many join.
e) I have not written the code to update the data yet but was planning on having separate jsps for updating the (one) table and the (many) table.
Would most of you do something similar? Would you use one SQL statement to retrieve all of the data for display and use logic to avoid printing the redundant part of the data? Or would you have used separate SQL queries, one for each table? Would you have saved the results into something other than an instance of a bean class that represents one record in the RecordSet? Would you have had a bean class with attributes other than Strings - like had a collection attribute to hold the results from the "many" table? The way that I am doing everything just seems so cumbersome and difficult compared to using Struts and JDO before.
Your help/opinion will be greatly appreciated!

Would you use one SQL statement to retrieve all of the data for display Yes.
and use logic to avoid printing the redundant part of the dataNo.
I believe in minimising the number of queries. If it is a simple one-many join on a db table, then one query is better than one + n queries.
However I prefer to store the objects in a bean class with attributes other than strings - ie one object, with a collection attribute to hold the related "many" records.
Does the fact you are not using Struts mean that you have to use scriptlet code? (shudder)
Or are you using JSTL, or other custom tags?
How about tools like Ant? Junit testing?
The way that I am doing everything just seems so cumbersome and difficult
compared to using Struts and JDO before.Anything different takes adjusting to. Sounds like you know what you're doing for the most part. I agree, in terms of best practices what you have described so far sounds like a step backwards from what you were previously doing.
However I wouldn't go complaining about it too loudly, too quickly. If you're new on the block theres nothing like making a pain of yourself, and complaining how backwards the work they have done is to put your new workmates' backs up
Look on it as a challenge. Maybe discuss it quietly with a team leader, to see if they understand how much easier/better/less error prone such approaches can be?
Struts, cumbersome as it can be, definitely has the advantage of pushing you to follow good MVC practice.
Good luck,
evnafets

Best practice for developing with CRM 2013 (On Premises)

Hello all. I'm just starting to work with CRM, and I have some questions that hopefully will be simple for the seasoned developers. It's mostly just some best practice or general how-to questions for the group.
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Hi Sam
Also interested in best practice around this area - especially recommended development routes, unit testing, continuous integration etc - it would be great if you posted here if you find any good articles etc. At the moment we tend to just push changes
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What is best practice for integration with freight forwarders?

Hello,
We are looking into the possibilities for automatically exchanging data with one of our freight forwarders. We will send them our shipment information and they will send back shipment status and date information including some additional information like the house bill. Sending the shipment data from our SAP (ECC 6) system is no issue, we have done that before. What is new to us is receiving back the status updates from the forwarder. Is there a kind of best practice of where to store this information on the shipment (or in a separate tabel) and what standard function module or BADI to use for this?
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Best practices for working with large placed bitmap images?

Hey all,
I need some advice on the best way to approach building these files. I've been working on some banners that are very large: 3 x 7 feet.
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Any advice is appreciated, thanks!

You can get into memory trouble with very large placed pdf files. Tiffs too.
This has to do with the preview, which contains much more information than you need for working with.
On the other hand if you place EPSs and take care not to turn on overprint preview you can get away with huge files.
If you do turn on overprint preview your machine will slow down a lot and the file may become totally unmanageable.
Compare this with to InDesign where you can control the quality of the preview. A hi-res preview will slow you down and most often you don't need it anyway.
I was working (in Illie) the other day on much larger files than you mention – displays for whole walls – and had some considerable trouble until I reverted to the old EPS format. They say it's dying but it ain't dead yet .

Best practices for start with itunesu

Hi people, I from Barcelona Spain, We start deploy itunesU for our university. We have a públic and private site, the públic site work with públic site manager.
I looking for the best way for vídeos and feeds, I try Podcast Producer 2, feeder and podcast maker.
Podcast maker, is cool option but xml not have a “elements” for itunesU
Feeder: is the best option, do a perfect xml for itunesu
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Any poll of software for publish in itunesU?
Sorry for my english
Thaks a lot

Hi people, I from Barcelona Spain, We start deploy itunesU for our university. We have a públic and private site, the públic site work with públic site manager.
I looking for the best way for vídeos and feeds, I try Podcast Producer 2, feeder and podcast maker.
Podcast maker, is cool option but xml not have a “elements” for itunesU
Feeder: is the best option, do a perfect xml for itunesu
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I create a workflow with name of courses
Podcast Producer no have “elements” for itunesu, (category, order, etc...)
the name of author it’s the same of username in podcast Producer.
Dou you need a edit xml file (UUIDNumber_offeed.cache) for add itunesu elements.
Any poll of software for publish in itunesU?
Sorry for my english
Thaks a lot

Question: Best practices for dealing with multiple AM configurations

Hello all,
I have a project using ADF Business Components and ADF Faces. I would like to set up multiple configurations for the Application Modules to support the following scenarios:
1). Local testing and debugging - using a connection defined in JDeveloper and AM Pooling turned off.
2). Testing and debugging on an application server - using a JDBC Data Source and AM Pooling turned off
3). Production deployment - using a JDBC Data Source and AM Pooling turned on.
It is no problem to create multiple AM configurations to reflect this scenario. In order for the web part of the application to use the correct configurations, the DataBindings.cpx file must specify the correct ones. I was thinking to have 3 different DataBindings.cpx files and to change the CpxFileName context-param in the web.xml file as needed.
My questions:
1). Does this make sense as an approach? It should be better than having to change a single AM configuration every time I deploy or test. Is there any easy way to keep multiple DataBIndings.cpx files in synch, given that we may add new pages from time-to-time? Alternatively, can we do some type of "include" processing to include just the dataControlUsages section into a common DataBindings.cpx file?
2). How would you manage the build-and-deploy process? For the most part, in JDev we would be using configuration #1. The only time to switch to configuration #2 or #3 would be to build an EAR file for deployment. Is this something that it would make sense to accomplish with ANT? I'm not an ANT expert at all. The ANT script would have "build-test-ear" and "build-prod_ear" targets which would swap in a correct web.xml file, recompile everything, build the EAR, then put the development web.xml file back. I'm relatively sure this is possible... comments?
3). Is there some other recommended approach?
I appreciate any insights from experience, or even just ideas or thoughts that I can test out.
Best regards,
John

Hi K,
Sorry for the long long delay in responding I've been traveling - and thanks for the e-mail tickler too...
To answer your question in short, I do think that ANT is the right way to go; there is an extra ANT task called XMLTask that I was able to download and play with, and it seems it would make this manipulation of the cpx file (or the xcfg file, for that matter) pretty straightforward. I don't have any code to post; it's just in the conceptual stage for me right now. I didn't see anything magical in JDev 11 TP3 that solved this problem for me either.
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Best Practices for VidConf with external parties

We currently use Sony Video conference units for our end units. On the backend, we use a Cisco 3515 for multipoint conferences.
We now need to be able to do video conferences with external parties using our MCU.
Since there are many ways of doing this, are there solutions that work better than others? Basically I need to publish a doc that says 'here is what you will need. This port open on your firewall, a public IP address that is not NATd....'
Any help would be appreciated.

David,
Unfortunately, Cisco has not (currently) chosen to implement H.460.x in their H.323 infrastructure solutions, so a Cisco GK could not be used in combination with a Tandberg SBC (session border controller). However, we currently use Cisco gatekeepers for everything but firewall traversal. For traversal, the Tandberg GK functions as the inside portion of the traversal solution and proxies for all my codecs (a mix of six different Tandberg and Polycom product lines)--even those that are H.460-capable. Combined with the SBC (session border controller is a Cisco MCM (25xx router) setting on the public side of the firewall and neighbored to the session border controller.
The "public" GK is for the entities who write custom policies in their firewalls or set their codecs on the public side of their security. If not H.460 compliant, they have to register with a GK, they can't register directly with the SBC, hence, the public GK which is simply neighbored to the SBC.
I would encourage you to closely look at the Polycom V2IU as well. It has come a LONG way since it was introduced a couple of years ago.
Personally, I still don't feel like the V2IU has as much flexibility nor does it implement a dialing methodology best suited for converging networks. It is an ALG (App Layer GW) that has been tweaked to support H.323 traversal, so I don't think it will ever truly match the Tandberg Expressway solution apples-apples, but it is dramatically less expensive and thus worth considering.
We tested both the Tandberg and Polycom traversal solutions with our internal CAC (call admission and control infrastructure), which is made up of multiple Cisco GK products in a fully meshed neighboring scenario prior to purchase of a traversal solution, and the Cisco products interoperated with both traversal solutions.
Cisco did present a solution that proposed a Layer 3 solution, but we felt it best to pursue something based within the H.323 umbrella standard.
If you want to talk more, please email me at [email protected] w/ direct contact info and I'll be happy to assist you in any way I can.
Greg

Best Practice for using with external HD

Greetings, I currently have a fairly large Aperture library, about 210Gb, it's managed by Aperture and on my internal MacBook Pro hard drive. Not good, I know. I just received my new MBP with Thunderbolt and also purchased the new Promise Pegasus 12 TB RAID storage device. My question to the community is this... what is the best way to set up Aperture to take advantage of the external RAID storage while still being able to keep some photos on my hard drive so I can work when away from the Pegasus device.
Any thoughts are appreciated.
Regards,
Scott

publish/subscribe, right?
lots of subscribers, big messages == lots of network traffic.
it's a wide open question, no?
%

[solved] Best Practice for SSDs with crypto on it regarding TRIM

Hi,
I was doing some research on this matter but did not find too much information on that that's more useful than confusing.
The setup is the following: I have an SSD (Crucial, Marvell-Controller) with two partitions: a small one for /boot and a bigger one for the rest, which is a LUKS-Container. I left some unpartitioned space at the end of the SSD. I'd like to *not* enable TRIM on the LUKS-device for security purposes.
I was wondering now:
I read that TRIM does reduce the write amplification of garbage collection. But shouldn't the garbage collection do not write at all, but just erase cells with no information on it?
If TRIM helps keeping up performance: do I need to explicitly trim the unpartitioned space? Or does this area behave like the spare area?
If TRIM of the unpartitioned space is necessary: what's the most elegant way to do so?
If someone could shed a little light on this matter, that would help a lot and would be greatly appreciated.
Last edited by Ovion (2015-03-09 19:20:13)

I have the same setup. Crucial SSD, LUKS, TRIM (cron.weekly fstrim). A full hexdump (minus gigabytes of random data) looks like this: https://bpaste.net/raw/505157 (tell me about it)
There is no issue with security. At least, none I care about. So the attacker can see how much free space there is [and where]. The where part is important since lots of small files give a different picture [lots of small free spaces in between] than a single very large file would [no free space in between], assuming there is no fragmentation worth mentioning [which Linux filesystems are usually good at]. So an attacker could probably make some guesses about your amount of data and file sizes. On the other hand I don't see how that's important, in ecryptfs you get this kind of info for free, and I have all sorts of files in all sorts of sizes either way, so it's not a big secret.
The question is, when all it takes to crack your encryption setup is a keylogger or a $5 encryption wrench, does it really matter?
Don't use TRIM on your SSD if you don't want to (there are lots of reasons not to TRIM... like better data recovery chances if you delete something by accident). But don't fool yourself thinking it's somehow really important for your security...
As for unpartitioned space, if it ever was in use before, you need to trim it once. Create a partition on it, then blkdiscard the partition, then delete the partition. That way it's good until it's "in use" again because you dd all over it or had it resynced in a RAID.
Apart from that, TRIM does all the things you said (reduce write amplification, performance, etc. etc.) but it's not like the SSD can't take it if you're not writing 24/7 because it's a database server burning up or something.
Last edited by frostschutz (2015-03-09 19:19:16)

Best Practices for JDBC with RAC Oracle Thin Driver non-XA Weblogic

Does anyone have experience on setting up your application server's JDBC connection pools for RAC?
We are using Weblogic 10 which supports load-balancing between connection pools at the application level, but I believe the listener is load-balanced on the Oracle CRS side as well.
Is this recommended / not-recommended?

We use JDBC connection pool. However the load balance
configured at the database. JDBC uses load_balance=on
in the connection string. It works fine. I haven't
tried integrating FAN option and app server.
You may refer this doc on load balance.
http://www.oracle.com/technology/products/database/clu
stering/pdf/twpracwkldmgmt.pdf
AshokWhat type of application server are you using?

Best Practices for Exporting with Bug overlay

I'm trying to optimize a bug graphic so as to speed up exports from FCP. I'm working at XDCam 1080i/60 (timeline + footage) and have experimented with different types of bugs, all PSD files. Here's what I've found exporting a 10 min. segment:
No bug = 3 min. export
96x96 pixel PSD of the bug positioned in the corner (semi-transparent)= 15 min. export
1920x1080 PSD with the bug pre-positioned in corner (semi-transparent) = 15 min.
1920x1080 PSD with the bug pre-positioned in corner (opaque) = 15 min.
It seems such a simple overlay shouldn't demand so much reprocessing and take so long. Any ideas how to make this more efficient? I don't want to add a bug via Compressor as I want to retain control of what moments in the program the bug displays.

Render to full before you export and all the times will match. The bug image size does not effect the render time as each frame has to be compressed separately. The only time it will make a difference is if you're scaling and positioning the bug to fit the screen, but if you position and size it correctly in Photoshop it will speed by the render time. XDCAM BTW is a dog to process because of its GOP structure.

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