Need ideas for graduation announcements

I'm not sure where I should post this so please excuse me if this is the wrong place.
My daughter will be graduating from Ohio State in June. I would like to make a sophisticated announcement.....totally different than anybody else will send. I take decent photos so I can do a session with her.
Is there anywhere online that has something like a drag and drop templates, or ideas, etc. I use iPhoto 6 and Photoshop Elements 4.
Thank you for your help.

Deborah:
I don't know of any site for templates but since you have PSE, look at commercially offered cards and then duplicate it in PSE with your modifications.
Do you Twango?

Similar Messages

Need Ideas for Minimalist Website and Image Gallery

I am looking for ideas for creating a minimalist online image gallery/portfolio? I want to either use html for the site and then flash for the portfolio images or some other method. I want to click on the thumbnails and then a large image will open.
Should I use Flash, Dreamweaver, Would it be easier to load the images dynamically to a folder. Does anyone have an example they could show me. Thanks.

I second Mahendra's suggestion for JAlbum Excellent product! Just so you know, you don't need to use their image hosting. Simply download the software and install it on your PC. The beauty of JAlbum is that it generates thumbnails and HTML pages for you from your folder of images. Lots of different Skins available. CSS can be customized. And you can't beat the price.
Minimalism is nice but on the web, if you don't have some real text in the HTML markup you're essentially invisible to search engines, language translators and web assisting technologies like screen readers. I realize this is a portfolio, but you want to maintain some degree of visibility so people can find you. For this reason, Flash sites don't do well. HTML is preferred.
Good luck with your project,
Nancy O.
Alt-Web Design & Publishing
Web | Graphics | Print | Media Specialists
http://alt-web.com/
http://twitter.com/altweb

Need ideas for plug-in re-design

My DAQ app uses "Plugins". A Plugin is a VI which conforms to a particular terminal configuration.
Here is the complete diagram of a simple one:
The idea is that a plugin is another channel: This one takes the value of TORQUE (in N-m) and the value of SPEED (in RPM), performs some computation, and produces a result POWER (in kW).
The user can then think of this as just another channel - it shows up in the datastream and the user can plot it, record it, set alarms on it, convert it to an output and send it out the CAN bus, anything he can do with a real channel, he can do with this plugin channel.
So the above is exactly equivalent to having a POWER transducer.
They can get much more complex than this.
My code organizes these so that the prerequisite channels are run first, and then the dependent ones. (a prerequisite channel could also be a plug-in).
If plugin B depends on plugin A as a prerequisite, I make sure that A runs first, regardless of which comes first in the CONFIG file.
So the actual DAQ code samples the hardware channels, and then the plugins in a particular order.
The DAQ is sampling at 10 Hz, and so these plugins run at that rate too. There may be 100 different plugins, maybe 50 at a time in one test.
The DAQ runs on a PXI box, running RTOS. The host is an ordinary PC, running Windows.
Even though the PXI is running a compiled RTEXE, it still loads the source-code VIs and runs them.
My data file includes all the recorded data, all the config stuff used to set that up, AND THE PLUGIN VIs THEMSELVES.
The plugin VI files are read as strings and stored in the datafile as strings, along with their names.
When reading a data file, I read this string, and store it in a "sandbox" folder with a .VI extension.
This guarantees that the version I have is the version the data was originally recorded with.
The user can EDIT the data files, for example changing the scale factor on the SPEED channel from 307.3 RPM/V to 308.5 RPM/V.
That causes a re-calculation of the SPEED channel.
It ALSO causes a re-calculation of the POWER channel: My code detects that POWER depends on SPEED and since SPEED changed, I have to run every sample back through the POWER VI to get a new value. (Remember they're not all as simple as this example).
THAT is why the VIs are stored in the data file.
ALL OF THAT WORKS.
100%
Like a dream.
For 8-9 years now.
EXCEPT...
When it comes time to change LABVIEW versions.
MY client has 10,000+ data files, each with 5-50 VIs embedded. Files are spread among 30+ machines, with a central server backup.
We need to hang on to this data.
I have a File Updater, which will take datafiles and update them (they are a DataLog file).
THE TROUBLE IS:
If I take a recent datafile, recorded with LV2010 (where we've been for 3+ years) and open it with the EXE built with LV2013, there's a problem if it tries to reprocess it. The error comes out as
Error Code 1126 occurred at Open VI Reference in HDT Open PlugIn.vi->HDT Find Calc Prerequisites.vi->HDT DataFile Prerequisite Manager.vi->HDT DataFile Viewer.vi->HDT.vi<APPEND>
An error occurred loading VI 'BSFC.vi'.
LabVIEW load error code 10: VI version (10.0) is too old to convert to the current LabVIEW version (13.0).
The EXE code, having no COMPILER handy, cannot use the old VI.
My FILE UPDATER, has a recompiler built into it (it reads the VI string, saves it as a VI file, opens it as a VI, saves it as a VI, then reads it as a string and puts it back where it belongs.
But if THAT is built into an EXE, it doesn't work either. Same problem, same error.
If I run the FILE UPDATER from the LV2013 DevSys, then it's OK. The re-compile process works fine, and then the EXE can read it and use the VI.
BUT:
1... That's painfully slow. I have a cache handler where I recompile each VI only once and recognize it if I see it again, but still it's a long process.
2... That doesn't work from an EXE. My client has 2-3 DevSystems and 30+ computers with just the EXE. But that's where the data files are.
3... Backup up Data Files on CD or DVD doesn't work.
SO............ TO make a long story even longer.......
I'm looking for an alternative.
REQUIREMENTS:
1... String-based, I suppose. I want to type in "Power = Torque * Speed / 9545" and have the code know to fetch the value of "Power", the value of "Torque", do the math, and produce the result.
2... Has to execute quickly. I have a zillion things to do at 10 Hz.
3... Has to be able to re-order itself. If I have ANOTHER plug-in channel called Fuel per Watt, and it calculates "FuelPerWatt = FuelFlow / Power * 10.34", then it has to know to execute POWER before it executes FUELPERWATT.
4... Musr work from an EXE and an RTEXE.
I've looked at a thing called MathToG, and it works OK for creating a VI from an equation, but it needs VI scripting, and therefore won't work from an EXE
Any ideas?
Steve Bird
Culverson Software - Elegant software that is a pleasure to use.
Culverson.com
Blog for (mostly LabVIEW) programmers: Tips And Tricks

Starting at the top, create a class which has no data and two methods - GetPrerequisites and Execute. Both are dynamic dispatch (use the right-click option in the New menu in the project to create them).
GetPrerequisites - has the input and output of the parent class so it is dynamic dispatch, and has a single output which is an array of the same class. You may want error I/O as well.
Execute - has the input and output of the parent class so it is dynamic dispatch, and has Result and Units outputs. The prerequisites output is redundant with the previous function, but can be added. Again, you may want error I/O.
In the parent class, both of these functions are essentially empty and return default data. The parent class is used for a template and to provide a parent for the function classes. As such, set the properties for each of the methods so that children must override them (do this in the class properties dialog box). Set these up the way you want them up front, since the children must use the exact same connector pane.
The functions themselves are all created as follows:
Create a class
Change its inheritance so it inherits from the parent class - it is now a child
Use the new menu on the child class to create functions to override the originals
Delete all code but the terminals in the child functions
Change the GetPrerequisites code so it returns a constant array of the prerequisite objects. These will be parallel children of the original parent class. For your power class, this would be an array containing the torque and speed classes. The easiest way to create this array is to drag a copy of the torque and speed classes onto the block diagram and use build array. They will be "coerced" to the parent class, but LabVIEW still knows what they are.
Change the Execute code so that it does whatever it needs to do. In general, use the GetPrerequisites function to fetch the prerequisites. Use a FOR loop to run the parent Execute function on each of these prerequisites. Dynamic dispatching will execute the correct code. You now have an array of the results. Use this, with whatever other functionality you need, to calculate your final values.
The prerequisites can be dynamically loaded so you do not have a static link to the prerequisite classes. If you would like to have a text interface, you can dynamically load the individual functions, then use their values in a LabVIEW formula VI for the final calculation.
If this is still Greek, you may want to walk through the examples of LabVIEW classes and dynamic dispatch to get more background on how to use classes.
If you would prefer a text string for your units so that you have more flexibility, let me know. I have an SI unit string validation VI that may be of use. It works for most unit combinations, provided they are not nested too deep.
This account is no longer active. Contact ShadesOfGray for current posts and information.

Need ideas for a validation concept

Hello,
I am a bit helpless about validations on my page!
I have a page with a lot of items, which are particularly filled with AJAX.
When a button is pressed these items should be validated before a page process runs. And of course if a validation fails the process should not run.
The problem is that the error messages of the validations should be displayed in a javascript box and not in the notification area.
Further I was not able to call a javascript function from a button and the process only runs if the button was pressed an the javascript validation function returns true!
And one more problem is that the items are filled by AJAX and because of that the value of these items are sometimes different when I try to reference them in the page process to validate the items.
So I have no idea to create a good validation concept, which creates a javascript box when a validation fails and the page process only runs if all validations return true.
I hope you have an idea, how I can do that!
Thank you,
Tim

Hello Tim,
Validation, especially in a web application, should be a two phase process. The first phase should be on the client side, and there you can use JavaScript, especially for the non-db related validations like not null, valid date, numbers only etc. The second phase should take place on the server side, after page submits, mainly because in the "way" from the client to the server things can be changed and tampered with.
The fact that you are using AJAX doesn't change this practice. Even if you are using select list (and radio groups or checkboxes are on the same category), based on dynamic LOV, do not assure you that the selected values, received by the sever, are legal ones.
You can use Andy's example for client side validation, but you'll also need server side validation. You should check Patrick blog on that one.
" The problem is that the error messages of the validations should be displayed in a javascript box and not in the notification area."Why? Server side validation results (at least the built-in ones) can't be displayed in JavaScript boxes, as this is a server side process. APEX practice is that failed validation stops the page processes, so nothing can be changed as long as you have items, which didn't validate correctly. I believe Patrick's solution presents the validation errors in a very friendly manner, although not in a JavaScript box.
" And one more problem is that the items are filled by AJAX and because of that the value of these items are sometimes different when I try to reference them in the page process to validate the items."You should give us some more specific details on the way you are populating the item, and the page process (and fire point) you are using. In any case, it is possible that your page process relies on session state, and just using AJAX don't necessarily update session state. In these cases, maybe you should initiate session state updates, prior to submitting the page.
Regards,
Arie.

Need Ideas for creating and using Custom Business Object

Hello Guys,
I am developing an application which uses a Request->Approve->Create approach for creating Purchase documents.
Now I am a little puzzled about how to make use of the Business Object BUS2014.
The application I am developing has its own unique 'Request Number' (say REQID) which will point to the Request for Creation of a purchase order.
Whenever a Request is created (from a Z-Tcode) a workflow needs to be initiated and it has to be sent to the approver.
The Purchase Document will be created once the approver approves.
Now my confusion here is, if I use BUS2014, the object will be instantiated only during the final step of the workflow. But I need an instance during the beginning of the Requestor ->Approver negotiations as I am playing with events. These events needs an Object_key.
How should I proceed here?
Should I create a new logical Business Object like ZPOREQ where I have the above mentioned REQID as the key?
And should I have an attribute of type BUS2014 inside the custom BO?
How will I make use of the methods like BUS2014.Create etc which I may need to create the purchase document?
Any small direction will be a huge help for me to get used to this wilderness.

Hi,
You should continue with the ABAP class idea. The business objects are kind of "obsolete" already, and if there is a need to create a new "object", ABAP classes are the way to go. Business objects are still useful, but I normally use them only when an existing standard business object fulfills the requirements (possibly with slight additions) which is almost never.
From my point of view you can use the existing class. Depending on the circumstances I normally have just one class that I use for both workflow and the possible other functionality that is required, but you have to understand that I have this goal in my mind already when starting the development process. As your class most probably has many useful features already (such as you have the header and item data as attributes etc. (if I understood correctly?), these are also useful in in workflow (class attributes will be available in WF container etc.).
If you are hesitant to use the same class directly in your workflow, you could also create a new class ZCL_REQUEST_FOR_WF (with the workflow interface), and then simply add your existing class ZCL_WF_REQUEST as an attribute to this new class. Then this new workflow class could include the pure workflow stuff, and your existing class the non-workflow stuff. But this most probably will not make much sense - just implement the if_workflow interface in your existing class (this is just one possibility that you might consider.)
Regards,
Karri

Need ideas for new PJC/Java Beans

Hello everybody,
I am always looking for new ideas about the Java Bean and PJC stuff. Sometimes I have good ideas about this, but sometimes it is quite a pain to find something new and innovative.
If you have ideas or needs about this, let me know in this thread.
(Sorry Oracle staff if I am going beyond my rights by using the Forum for that purpose)
Francois

Francois ,
I think that we all need to thank you for all your hard work promoting Oracle Forms.
Your input and constant support on this forum is greatly appreciated.
But I personally think that all this needs to be addressed by Oracle.
Your wrote
Sometimes I have good ideas about this, but sometimes it is quite a pain to find something new and innovative.
And I agree with you.
You can go as far as the Forms let you go...
Thanks,
Michael

Need Ideas For Storage Units Data Storage Capabilities - Special Attributes? History? 2 Ind-UMs

Hello experts,
The company I'm working for is looking into permanently-storing pallet level information (keep a history of the pallet movements) and use RF-scanners to move product in the warehouse. They have made a decision to implement Warehouse Management's Storage Unit Management functionality. They looked into Handling Units as well, but they don't want to use HUs for many reasons.
They would also like to store 2 units of measure at the Storage Unit level without activating "Catch Weight Management" because that would require them to run parallel systems for a while and also deal with CWM functionality restrictions. Keep in mind that most of the products they handle are catch-weight products, so UM conversions don't work for them.
Solutions I have in mind:
For storing 2 independent UMs: Store the quantity of the 2nd unit of measure in a custom table at the Storage Unit level and use custom RF-scanner programs to "receive, issue, scrap, and move" goods in the warehouse. These custom RF-scanner programs would update SAP standard table with 1st (base) UM and also custom table with 2nd UM.
For permanenlty-storing SU history: Use custom table to to store Storage Unit History. The custom programs created to handle the SUs would update this custom table.
Last time I checked, the history of a Storage Unit is not recorded in SAP, correct? ONLY in Handling Units, correct?
OR are there any documents/tables that permanently store the Storage Unit number so they can be queried after the Storage Unit is consumed/issued?
I know SAP keeps improving its applications with every release, so I'm just looking at my options here.
Does anyone else have any other ideas on how to approach this other than Using Handling Units & Catch Weight Management?
Thanks in advance!
-Mr. Bello
Message was edited by: Jürgen L

For storing 2 independent UMs
Can you please explore the LS26 option there also system is allowing you to change the parameter"Unit of measure" and displays the stock on different UoM, hopefully this will solve your problem and you need not design a custom table to store the value at different UoM level
For permanenlty-storing SU history:
System store the storage unit related value in table : LEIN however the moment you do any consumption or movement to non SU the entries goes off from this table hence i think the approach taken by you seems the only one approach to store the historical data. (Make sure you are taking into consideration of the archiving activity as you proceed further the size of database will get bigger and time to generate any report will take longer then expected

[SOLVED]Need ideas for framework level disable on af command components

Hi all,
I am using ADF Faces & BC, JDeveloper 10g.
I need a framework level disable/enable design for every command component on a adf faces page. I can certainly do this one at a time by assigning an el expression on the "disable" attribute individually. However, this would put the burden on each developer to ensure proper authorization code is put in place. I would like to avoid the latter option as it is repetitive, not modular and prone to mistakes. Can anyone provide some ideas? I was thinking of using javascript to pick up special designated componentIds and assign property that way. Also, I've heard of aspect oriented approaches for Java classes, although I'm not sure how well this would integrate into our application. Any advice is appreciated.
Thanks,
Wes
Edited by: Wes Fang on Sep 21, 2010 9:00 AM

Thanks again for the idea John, I tracked down this thread:
ADF FACES:Creating custom component on top of adf
on how to create custom tags, everything is working with the exception one important feature. My custom tags are showing up, but I cannot seem to access the adf binding container within the UIcomponent base. I need to execute a method on the app module to find out if the button should be enabled/disabled. Would you have a solution to this issue? I also found another user with similar question over at:
Re: Parsing EL expression in custom tag 10.1.3.4
thanks,
Wes

Need IDE for Mac OS Jaguar

I have recently made the switch to Mac from Windows, and everything works beautifully for me except for one thing. I can't find any programming tools for C. I would love to use Xcode, but I don't have Tiger, and I don't plan on upgrading. What alternative IDEs could I use?
Quicksilver 2002 Mac OS X (10.2.x)

It's only a big risk when your hard drive crashes or suffers file corruption. A backup is always a good thing to have. I always install a second hard drive for each computer and maintain a regular backup for each one.
You can easily clone your system to a second drive using the Restore option of Disk Utility:
How to Clone Using Restore Option of Disk Utility
1. Open Disk Utility from the Utilities folder.
2. Select the backup or destination volume from the left side list.
3. Click on the Erase tab in the DU main window. Set the format type to Mac OS Extended (journaled, if available) and click on the Erase button. This step can be skipped if the destination has already been freshly erased.
4. Click on the Restore tab in the DU main window.
5. Select the backup or destination volume from the left side list and drag it to the Destination entry field.
6. Select the startup or source volume from the left side list and drag it to the Source entry field.
7. Double-check you got it right, then click on the Restore button.
8. Select the destination drive on the Desktop and press COMMAND-I to open the Get Info window. At the bottom in the Ownership and Permissions section be sure the box labeled "Ignore Permissions on this Volume" is unchecked. Verify the settings for Ownership and Permissions as follows: Owner=system with read/write; Group=admin with read/write; Other with read-only. If they are not correct then reset them.
For added precaution you can boot into safe mode before doing the clone.
You can then use a third-party backup utility to maintain the clone with incremental updates. Some good choices are:
Retrospect
Synchronize! Pro X
Synk 6
Deja Vu
All work with Panther and Tiger and can perform both full and incremental backups as well as maintain bootable clones.
I agree, if all your software works fine there's no need to upgrade unless upgrades provide new features that you can use.
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Members may reward you with 5 points if they deem that your reply is helpful and 10 points if you post a solution to their issue. Likewise, when you mark a reply as Helpful or Solved in your own created topic, you will be awarding the respondent with the same point values.

Needed Idea for the creation of this report

HI Experts............
    I need to genrate reports on the Transport status. Format of the report
user entery is user id : user 001
column 1              column 2          column3        column4
No of request       devlopment     Q/A system   production
      8                           2                       4                   2
I have found the table name which contains the transport data that is E070
in this table i have field called status but it gives the status for transport object and not for the transport request
i need to find current status of the transport wether it is in quality or in production or in devlopment .
how to slove this problem
it would b great help if any one give a solution
Thank u
gopu77

<font type="verdana">
sql>select * from chem;
<br>
FORMULA CHEM WT RT
<br>
fm1 ch1 10 100
<br>
fm1 ch2 12 200
<br>
fm2 ch1 2 1100
<br>
fm1 ch2 6 2100
<br>
report will be like this
<br>
<img src="http://k.jeneesh.googlepages.com/img1.bmp"/>
</font>
Message was edited by:
jeneesh

Need Ideas for This Puzzle

The puzzle relates to displaying check boxes (checkbox or multibox).
What I have are members who belong to professional groups and sub-groups. E.g.,
Group A with sub-groups A-1, A-2, A-3, A-4.
Group B with sub-groups B-1, B-2, B-3
Group C with sub-groups C-1, C-2, C-3, C-4, C-5, C-6
etc.
web site users make multiple selections among groups. And all members in those groups will receive an e-mail message.
I can display a check box for every single "sub-group". And give each "group" a "select all" check box. All I have to take care are the checked "sub-groups".
The challege comes as the "roles" of the web site users are introduced. According to the role of the web site user, I have to display certain groups (not all the groups) and certain sub-groups (not all sub-groups within a group) to him/her.
How do I disply groups and their sub-groups under such a condition?

well, presuming you still need all values..., something along these lines
<%
boolean checked = isChecked("a"); // check if the value should be checked by default
if(showCheckbox(user, "a")) { // check if, for this user, the checkbox should be visible
%>
<input type="checkbox" name="a" value="a" <%= checked ?"checked":"" %>>
<%
} else { // show disabled checkbox (or leave that out to show nothing...)
%>
<input type="checkbox" name="noname" <%= checked ? "checked" : "" %> disabled="diabled" />
<%
if(checked) { // don't need hidden value if default is unchecked
%>
<input type="hidden" name="a" value="a">
<%
%>

Need ideas for best audio setup on Q180

Hello all. I've got a Q180 and very nice it is too, apart from one major ommision; there is no audio input/output on the rear panel, only on the front. I want a setup where I can have speakers plugged in to the rear somehow, but also be able to switch to headphone and mic in the front when I need to skype etc.
I've bought a small usb sound card for the rear panel, which seems to work well, but if I plug headphone into the front, I have to go to the audio control panel to change the default output to the internal audio system, and then change it back when I've finished.
Is there a better way of doing this? How have others arranged their audio needs with their Q180's?
Thanks for any advice!
Lee

Yes its one of the big ergonomic mistakes they made with the Q180 along with the power button you press everytime you plug something in (corrected on the Q190 at least).
Why would you want analogue output from the rear of a PC, where you cant see it and it looks neat. what a crazy notion (facepalms) Obviously you would want the cable poking out from under the front flap for a far more sleek look?!
Anyway the solution I came up with for one customer was a Bluetooth audio adapter.
A standard usb Bluetooth transmitter plugs in the back of the Q180 and the tiny Bluetooth receiver plugs into the 2.5mm audio in socket on his monitor.
You can find them cheap on Ebay - http://www.ebay.co.uk/itm/7dayshop-Bluetooth-Audio-Receiver-Adapter-Ref-BTR006-/400449362409?pt=UK_i...
You may still have some audio jiggery pokery to deal with though.
Sometimes USB equipped mic/headsets are easier to use as they just take priority as they are plugged in and out.

Need ideas for alternative to JavaScript for comparing two inputText values

Hello
I am currently using the JavaScript method to check if the values of two inputText components are equal.
If the values are not equal an alert box is displayed. In either case the action on the bean is performed and in the action method the two bean property values are compared again, if they don't match the action returns null and the for is redisplayed.
I don't like this method because:
A) it seems long winded and wasteful
B) the JavaScript dialog box is out of character with the rest of the form, where validation errors are returned as messages next to the offending component.
On one of the inputText components I already do a custom validation to check that the input value is a valid javax.mail.internet.InternetAddress.
Does anyone know of any other method ideas, perhaps using Value Change Events that will allow a message to be written against the second inputText component if the two values did not match, and which could be done before the Invoke Application event. I have tried something along these lines but have failed.
Many thanks in advance...

If you can use a custom tag for the validator instead of the standard f:validator tag,
there is a better way:
The custom tag has an attribute , eg. "forId", to specify the ID of another component.
Then, your validator can use the attribute for the parameter of findComponent().
Something like:
YourValidatorTagHandler.java
     protected Validator createValidator() throws JspException {
          YourValidator val = (YourValidator)super.createValidator();
          val.setForId(forId);
          return val;
YourValidator.java
     public void setForId(String f) {
          forId = f;
     public void validate(
          FacesContext context,
          UIComponent component,
          Object value)
          throws ValidatorException {
               int i1;
               int i2;
               try {
                    i1 = ((Integer) value).intValue();
                    UIComponent comp = component.findComponent(forId);
                    String val = (String)((UIInput)comp).getSubmittedValue();
                    i2 = Integer.parseInt(val);
               } catch (RuntimeException e) {
                    FacesMessage msg = new FacesMessage(e.getMessage());
                    throw new ValidatorException(msg);
               if (i1 != i2) {
                    FacesMessage msg = new FacesMessage("Error");
                    throw new ValidatorException(msg);
     }

I need ideas for i lightweight desktop for my laptop

this is my current desktop
For a bigger picture click here
http://webpages.charter.net/tccs/jdesk.png
any one have ideas/suggestions?

yettenet wrote:You might also want to take a look at pekwm or openbox or, in case you are able to learn new things, dwm (for it is the most lightweight WM I have ever seen)
Yeah, I'd definitly give dwm a shot. dwm rocks, IMO...

Need ideas for class list

I am creating a software that will have a built-in set of math operations, each math operation has its own class and they are all subclasses of the class MathOperation.
for instance,
class Addition extends MathOperation{ ... }
class Subtraction extends MathOperation{ ... }
etcWhen the end user is using the application, I want them to select one of the math operations from a drop-down list.
Here's where it gets a little bit tricky...
I want other developers to be able to write math operator classes and have them available in the drop down list. So for instance, if someone later wants to write a Multiplication class that extends MathOperation I want them to be able to.
How do I go about packaging the classes so that I can simply add all available children classes of MathOperation to my list (pre-built and customized)?

sidkdbl07 wrote:
Here's where it gets a little bit tricky...
I want other developers to be able to write math operator classes and have them available in the drop down list. So for instance, if someone later wants to write a Multiplication class that extends MathOperation I want them to be able to.I think there may be more difficulties than you think.
Do you want these classes to be polymorphic (ie, have them all implement some sort of execute(...) method)?
If so, I suspect you're going to have to come up with some sort of 'Value' hierarchy to cover the different types of values that can be supplied to or returned from these functions.
Furthermore, the actions of a class may well depend on the type(s) of Value it's passed.
Take Division: If both are Integers, you may want the result to be an integer division; if floating-point, an FP result; and if one of them is a complex number.... this sounds like more than one class to me (otherwise a fair bit of dispatching to be done inside the class).
It also seems to me that the nature of a single-parameter function (eg, Factorial) may be different from one which accepts more than 1 argument.
I'm still getting my head around closures, so this is all fairly new to me. This may not be applicable (and I'm sure someone'll say if I'm wrong :-)), but it seems to me that, in addition to Peter's suggestion, you might also want to look at the Visitor pattern.
Winston

Need ideas for graduation announcements

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