Suggestions for query formulation and parsing

I'm trying to design a query format that can be used to perform searches across my objects. The query would be allowed to contain predicates with nested binary logical operators (e.g., (((a > 4) AND (b < 5)) OR (c == "hello world")) ).
I need to design a query language, and need to have a way to parse an incoming expression and generate a parse tree from it that I can execute a search against.
What is the elegant/correct solution to do this? Are there Java libraries that are equivalents of lex and yacc? What are suggestions for the simplest way to do this, presuming limitations can be put on the query language to make it simple?

What is the elegant/correct solution to do this? Are
there Java libraries that are equivalents of lex and
yacc? Sure. google JavaCC.

Similar Messages

Is there an EASY way to submit podcasts to the itunes store? i've tried creating podcasts in garageband, then somewhere after wordpress itunes doesn't recognize the feed. my process has been (i am open to suggestions for other free and EASY services/me

is there an EASY way to submit podcasts to the itunes store? i've tried creating podcasts in garageband, then somewhere after wordpress itunes doesn't recognize the feed.
my process has been (i am open to suggestions for other free and EASY services/methods):
garageband : create & edit audio. add 1400x1400 image.
share to itunes.
drag file to desktop.
upload .m4a file to google drive.
create a link post in wordpress using "podcast" tag & create "podcast" category.
click on "entries rss" in wordpress, which takes me to the rss subscribe page (which is basically just my wordpress address with "/feed" at the end.
i copy this url.
go to itunes store > then "submit a podcast"
itunes gives me the error message "we had difficulty downloading episodes from your feed."
when i try to subscribe to my podcast in itunes, it does, but gives me no episodes available.
i went back into wordpress and changed settings/ reading settings to : "full text" from "summary"
still the same error message.
i added a feedburner step after wordpress but got the same errors. i don't think i should have to add feedburner.
wordpress seems to be encapsulating the rss, what am i doing wrong?
this so much easier when you could go directly from garage band to iweb to mobileme; i miss those apple days (also idisk).

if anyone has a super EASY process, i would LOVE to know what it is. EASY, meaning no html and also free. there are many free online storage systems available, many of which i currently use. the above process was just me trying to figure it out, if you have an easier method, please share. thank you so much!

Suggestions for new features and improvements for Garageband

Hi,
I posted this to iCompositions but don't know who would be exposed to it as far as Apple goes. Just thought I would list a sort of wish list for GB that would make a huge difference for me.
Most are just basic interface improvements and changes. Some you may already be able to do and I'm unaware.
1. A click track option would be nice.
2. A space to write production notes as in guitar used and pickup used.
3. A Telecaster and Strat icon for the track icons.
4. When you duplicate a track it also duplicates the region(s) of the track.
5. An edit (highlight) button on a region to mark where editing needs to happen. This could be saved for future reference and quick navigation to.
6. More control over the loop button on tracks. If you want to move it to another section it ***** to get at both ends and drag it to where it needs to be.
7. Audio Interface volume booster. I don't get the same input from my M-Audio Ozone as I do via input of my guitar through a direct box. Not even close. Maybe it's my interface?
8. More than one effect(s) on the same track.
This is my wish list.
ej
G5 Mac OS X (10.4.9) PowerPC G5 Dual 2 GHz 1GB SDRAM

First of all, if you want Apple to listen to your suggestions, you better use the feedback forms, since this is a user forum and is very rarely visited by Apple employees.
As for your list: People in this forum have put together a huge wishlist which somehow differs from yours (see this thread, for example). Top of the list are midi export, variable tempo and volume and effect automation.
As for your no.8:
8. More than one effect(s) on the same track.
You can have up to 4 effects on each track (plus the not very effective compression slider), 2 of them are restricted to echo and reverb.

Suggestions for Cable Modem and Wireless Router

Hey everyone!
I have the new iMac and would like to have a faster wireless router. Currently using an old D-Link Wireless G router and would like something like the Time Capsule (as it has Airport Extreme in it) or Netgear Rangemax Dual Band Wirless-N Gigabit Router. My problem is, my Internet is through my cable company, so it comes into the house as a cable connection. It appears that these two combos would still require the use of a cable modem.
Any suggestions to keep the equipment down to one piece? If not, any suggestions for a cable modem so I can return this old one to the cable company?
What would be the best/quickest wireless router?
Thanks for your help!
Message was edited by: saalbunch

Go to your ISP's web site and do a search from your ISP for compatible cable modems. Then buy the capable modem your ISP says that is comp[atible. On the new cable modem find the Serial number & MAC address, make then call your ISP tech help desk and tell them the new modem you got and he/she will ask you that information. When the ISP tech says they can see/ping that new cable modem then it will work. Then connect a new cheaper Airport Extreme and any external USB2 hard drive to connect to that new Airport Extreme. I say this because Apple put out and Update a little while ago that will allow an external connected to an Extreme as a Time Machine disk.
PS: Remember the old trick of checking you Ethernet cables. I can't count how times I have seen professionals install all new high speed switches, routers, etc. and wonder why no speed is seen. Then after numerous trouble shooting they discover they used the old 10 Base T cables and just changing the cable solved their problem.
Just make sure you do this one at a time starting with getting the ISP compatible cable modems list to know what cable modem you can buy (to save that monthly ISP rental fee). Then you can get the going as long as so speak with your ISP tech to give them that new cable modem Serial number and MAC address so they can register it with their servers.
This will be to easy as long as you do things in step.
Message was edited by: satcomer

What is proper way to report suggestions for app features And bugs to Apple

What is the proper way to report suggestions for app features to Apple? Or, do they even want suggestions?
And, how about reporting app bugs? Should I just assume the bug is already known, or is there a way for (quickly) reporting them?

I'm not sure about bugs in non-Apple apps, but bugs in Apple apps can be reported via this form:
http://www.apple.com/feedback/ipad.html

Suggestions for 808 PureView and Symbian Belle

Hi friends,
I am a proud owner of astounding (and worst marketed extra-ordinary device) 808 PureView. Biggest compliment to it is that it has replaced my SGS2. Yes, truly.
After using 808 for some time now I am quite happy but disappointed with certain things. Few things are so minor that I am surprised why Nokia removed it or didnt implement.
So here I am presenting a list of things which I would request Nokia to fix or implement. I will also request all of you here to add to the list so that Nokia gets a direct feedback and can improve the device and software. Thanks !
Camera:
1. Slow shutter speeds
2. Full resolution in various Scenes modes
3. Pics with AutoFlash mostly comes dark in edges in Indoors
4. Slightly faster Auto-Focus with soft shutter button
Gallery:
(I know about other thread but this is a consolidated list)
1. Batch functions (send, share)
2. Albums
3. Folders
4. Tabbed interface (All, Images, Videos)
5. Sort by Date, Name, Type, Size, Location, etc.
6. Send via NFC option (everybody does not read Manual )
7. Ability to trim parts of video (and to join parts, if possible)
Contacts:
1. Labels please !!!
2. Thumbnail view (atleast in Groups)(could be first-ever. Android has partial implementation)
3. Contacts with latest Social updates(tweets or Facebook activities) to come second-top after Favourites (convenient and another first)(switch on-off from Settings)
4. Additional Tab in Contact's view showing all communication with him/her (Calls, E-mails and Messages)
5. Another optional Tab showing his/her last 5 Social updates
Messaging:
1. Tabbed interface (Conversations/Folders/(optionally) E-Mails)
2. Forward icon alongside Reply icon
3. Individual Contact's SMS\Email tone (such a little but practical feature)
Telephony:
1. Detailed Call log (Settings>Extended View)
2. Video Call button
E-Mail:
1. E-Mail Popups (probably with Reply option)
2. Cleaner tabbed interface
3. Pinch-to-Zoom and Wrap function
4. Archive option in GMail mails
5. Go to next email after deleting and not the Inbox (its really annoying)
Videos:
1. Large Thumbnail option
2. Better support for Matroska (mkv)
3. Better subtitle support (black fonts???)
4. Options for Brightness and Contrast
Music Player:
1. Folders Tab
2. Editable equaliser
I again request to provide suggestions and I will add them in OP (with your name). Lets help Nokia make great OS and Product even better. And in my experience, they have always seriously listened to their customers and brought the improvements.
Good Luck !

Nokia thank you for last updates..the 808 is quite perfect now!!
Let's update some last suggestion for Nokia
Camera:
1. Slow shutter speeds / FULL Shutter priority mode (with flash and auto/manual ISO....i'm not able to use flash with high ISO and slow shutter speeds)
2. Full resolution or 12MP / 8MP resolution in various Scenes modes
3. Pics with AutoFlash mostly comes dark in edges in Indoors
4. Slightly faster Auto-Focus with soft shutter button
5. Flash EV Compensation
7. (Hardware) Image Stabilization with low light
8. better White Balance..more options..
9. square (1:1) and 3:2 modes
10. higher FPS available with low res videos
11. Camera noise fix, lots of digital noise on the right side of the screen (purple cast) when taking pics in darker conditions without flash, something is interfering..
12. nedd much better performance for the CAF in video mode, it doesn't work on FP2
13. Lumia photo tools / add-ons: Cinemagraph lens, Smart Shoot lens, Panorama lens, Bing vision..
Gallery:
1. Albums / Folders
2. Tabbed interface (All, Images, Videos)
3. Sort by Date, Name, Type, Size, Location, etc.
4. Send via NFC option (everybody does not read Manual )
5. Ability to trim parts of video (and to join parts, if possible...improve VideoPRO please..audio editing!)
6. Improve PHOTO Editing too, more controls (light/shadows, sharpness, fixed ratio for photo crop like 3:2 and 1:1, blur control..)
Contacts:
1. Labels please !!!
2. Thumbnail view (atleast in Groups)(could be first-ever. Android has partial implementation)
3. Contacts with latest Social updates(tweets or Facebook activities) to come second-top after Favourites (convenient and another first)(switch on-off from Settings)
4. Additional Tab in Contact's view showing all communication with him/her (Calls, E-mails and Messages)
5. Another optional Tab showing his/her last 5 Social updates
Messaging:
1. Tabbed interface (Conversations/Folders/(optionally) E-Mails)
2. Forward icon alongside Reply icon
3. Individual Contact's SMS\Email tone (such a little but practical feature)
4. More smart use of Words Suggestions in T9 Mode..priority for shorter words!
(in Italian...i want to write "ON" and i touch ONLY the 6 button two times, but sometimes it suggests "NO" and/or longer words like "ONLY","NOBODY","NOTHING"...but not "ON"!! (In Italian language, i don't know if it does the same in English!)
5. In conversation or with Whatsapp, in horizontal mode with QUERTY and Words Suggestions enabled, it's impossible to read the last messages during writing.
6. much smaller text option
7. in conversation view, the letter icon and the notification of a new message doesn't disapppear if you've only read the sms, without giving a reply! I suggest that a tap on the yellow letter icon on the right in conversation mode will change the sms status from unread to read
Telephony:
1. Detailed Call log (Settings>Extended View)
2. Video Call button
4. more notifications on notification bar
5. improve social network apps and connections between gallery / notification bar and them
E-Mail:
1. E-Mail Popups (probably with Reply option)
2. Cleaner tabbed interface
3. Pinch-to-Zoom and Wrap function
4. Archive option in GMail mails
5. Go to next email after deleting and not the Inbox (its really annoying)
6. Email notification like with missed calls or sms on the lockscreen.
Videos:
1. Large Thumbnail option
2. Better support for Matroska (mkv)
3. Better subtitle support (black fonts???)
4. Options for Brightness and Contrast
Music Player:
1. Folders Tab
2. Editable equaliser
LET'S GO!!

Suggestions for creating LOGOS and GRAPHICS??

I create logos as kind of a "hobby". I usually use PAGES to create as most are manipulations of fonts, shapes and importing images, etc.
I realize I am limited by PAGES in terms of producing high quality images for reproduction.
Does anyone have a suggestion for the next best program to use? I don't have the patience or time to learn COREL DRAW - I'm hoping there is something in between PAGES and programs similar to COREL!
SUGGESTIONS are really, really appreciated!
Thank you.

I do monograms in Photoshop Elements which is really a program for photo manipulation but is a great program for graphic design. I went with Elements since it is a lot cheaper than the full version of Photoshop and has everything I need.

Infrastructure suggestion for Oracle RAC and Dataguard

Hello,
We are working on migration business proposal and need to suggest HA and DR infrastructure solution with Oracle 11G databases. I am thinking to suggest Oracle 11g RAC and Dataguard to meet this requirement. We also wanted to cover Dev, Test and Pre Prod along with Prod in new environment. Can someone suggest cost effective, stable and scalable infrastructure for this requirement
Best regards,
Venkat

In terms of cost ? Perhaps.
In terms of performance? NO.
Bear in mind I'm not trying to sell anything here, but in my experience hardly anything matches the performance of Exadata. It has specific features for the DB such as de iDB protocol which enables the offloading of queries to the exadata storage servers. More unique features include: storage indexes, HCC compression, smart flash cache... It's all a matter of how much you want to spend.
Yes, you can have all your servers on the same box if you want, just make sure it is not a single point of failure. (Have appropriate safeguards in place in case of power failure, Data center catastrophes, etc). In case of LPARs on the same box, be aware of one server over-utilizing resources which would affect the other LPARs (configurable).
More info on Exadata: http://www.oracle.com/technetwork/server-storage/engineered-systems/exadata/dbmachine-x3-twp-1867467.pdf
If your company has a tight budget you might also look at your options with Database appliance: http://www.oracle.com/technetwork/server-storage/engineered-systems/database-appliance/documentation/oracle-db-appliance…
Database appliance has more flexibility in terms of licensing and it's also a complete hardware solution from oracle for Databases.
Regards

Suggestions for a stylus and drawing app

I want to do some simple freehand drawing on my iPad. I know nothing about the technology involved, other than the fact that I know it can be done.
Stylus: Can someone suggest a good stylus? I've heard of styluses that will make a thin or thick line depending on how hard you press.
App: Can someone suggest a good app? For the moment, I'm considering doing only black and white, but I eventually might want to get into multi color.
Upload: Would I be able to transfer my stuff from the iPad to my iMac for printing or publishing to a web page? I would want my drawing to appear at least as big as the original on the iPad, without having to expand it and have problems with pixellation.

The last thing you need is a script.
When you want to make your TOC, go to Pages, Numbering and Section Options, and put a section prefix in like 1- for each section (both 1 and 2 in your case). Click "Include Prefix When Numbering Pages".
Then make your TOC.
It will have all the section prefixes. ("1-1", "2-2-4", examples)
Now just change the Numbering and Section Options BACK to your pre-TOC defaults. As long as you don't update the TOC under Layout/Update TOC, your TOC text will contain the prefix, but your page numbers will look normal. If you have to change the text in the TOC for any reason, do it manually.
Let me know if that works.
Greg Ledger
www.macproductionartist.wordpress.com

Need suggestion for a burner and set up....

Hi
Last week I downloaded latest addition of I-tunes and have imported some songs. I want to put on a basic CD for listening in car. My computer (windows XP Home) doesn't have a built in CD burner so I need to purchase an external CD burner.
I just need the basics. Any suggestions? How does one hook this up to the computer and how will I know if it will work with I-tunes? Thanks much

They can hook up via USB/Firewire. I would get it from here,
http://www.tigerdirect.com/applications/category/category_slc.asp?CatId=478&Nav=
Or here,
http://www.amazon.com/s/ref=nbssgw/103-3031257-3011057?url=search-alias%3Daps&field-keywords=externalcdburner&Go.x=0&Go.y=0&Go=Go
and they should work just fine with iTunes.

Suggestions for increased performance and better memory utilization for FTE

We all know that there is a pretty big downside to creating potentially thousands of DisplayObjectContainers (TextLines).
o - they are slow to create
o - they may be short lived
o - they occupy lots of memory
o - they may need to be generated frequently
Currently, there is only one way to find out all the information you need and that is to create all the TextLines for a given data set.
This means that FTE does not scale well. It becomes very slow for large data sets that need to be regenerated.
I am proposing a possible solution and hope that Adobe will consider it.
If we had the right tools we could create a sliding window of display objects. With large data sets only a fraction of the content is actually visible. So only the objects that are actually visible need to be created. There is no way to do this efficiently with FTE at the present time.
So we need a few new methods and classes that parallel what you already have.
New Method 1)
TextBlock.getTextLineInfo (width:Number, lineOffset:Number, fitSomething:Boolean) : TextLineInfo
This method returns simple information about all the lines in a text block. No display objects are generated.
class TextLineInfo
    public var maxWidth:Number;   // maximum width of all the textlines in the textBlock
    public var totalHeight:Number; // totalHeight of all the textlines in the textBlock
    public var numLines:int;           // number of lines in the lineInfo Array
    public var lineInfo:Array;           // array of LineInfo items for each textline
class LineInfo // sample - more or less may be needed
    public var rawTextLength:int;
    public var textWidth:Number;
    public var textHeight:Number;
    public var ascent;
    public var descent;
    public var textBlockBeginIndex:int;
Now getTextLineInfo needs to be as fast as possible. Find an advanced game programmer to optimize, write it in assembler, put grease on it.... do whatever it takes to make it fast.
New Method 2)
TextBlock.createTextLines (textLineInfo:TextLineInfo, begIdx:int, endIdx:int) : Array
Creates and returns an Array of TextLine objects based on the previously created TextLineInfo. A range can be specified.
It should be obvious that the above functions will improve the situation. Since this parallels what you already have it should not be earth shaking to implement.
New Display Object type
Much of the time you do not need a full blown Display Object Container for a TextLine. I suggest an additional lightweight TextLine class. A good parallel would be similiar to the difference between Sprite and Shape.
Now I have some done some testing with this idea. Since you cannot implement this fully as it stands, I had to make some concessions. This sample contains 100,004 characters of data. You can resize it and it will always be fast. This sample only creates the visible portion of the display, but you may scroll into view the invisible portions. Each time the page is resized, it will jump back to the top, because of the limitations of FTE currently.
The sample also contains a caret and allows the selection of an area but no editng, copy, paste etc., is available for this test.
If I did not do special handling for this, it would lock up for sure and be very user unfreindly.
Now it takes a moment to load 100k into the TextElement.so there may be a pause before you see that data. I may need to improve this. Once loaded it performs quite well.
Without the above or similiar optimizations. FTE is just not going to scale up very well at all.
Don

Jeff, I don't see how a fix for that bug means waiting for a major release. It seems it just does not work as you expected and perhaps documented. It should not break any code, should it ? This seems a somewhat major improvement.
Using recreateTextLine in 10.1 I have these results so far:
My test case is 668 lines and using my slow test machine so the timing can be picked up.
When using just createTextLine and creating all text lines:
......Using removeChildAt to first remove all the old textLines then create all textLines:
..........it takes ~670ms
......Removing all children at once by removing the container then create all textLines:
..........it takes ~570ms
Using recreateTextLine, getChildAt, then create all textLines:
..........it takes ~670ms
So recreateTextLine does not improve performance it seems, just better memory I suppose.
Don

Suggestion for Pricing Type and Pricing Exchange Rate Type

Dear All,
Good Day,
what would be your recommendation to maintain Pricing type and Pricing exchange rate type for below process.
1. Invocie.
2. Cancellation of Invoice.
3. Return Invoice.
4. Credit Note.
5. litigious Invoice.
Best Regards,
KSK

Thanks sam,
I have configured the same but now problem is Billing Header Exchange rate is not changing. Because of that Accounting document also doesn't have new exchange rate,.
1. Is there any another config needs to be maintain.
Example:
Sale order Exchange rate              10.45           Order date : 01.11.2008
Billing Header Exchange Rate         10.45           Billing date : 05.11.2008
Billing Line item Exchange Rate      11.00           Billing date : 05.11.2008 base on VTFL Config
Account Document Exchange Rate 10.45          Posting date : 05.11.2008 because of Billing Header exchange Rate
I need Accounting document also to carry New exchange rate 11.00 . suggest me.
Best Regards,
KSK

Suggestion for IDoc creation and conversion program

Hi Experts,
I want to send the data from SAP to Non-SAP System. The Non-SAP System needs the text file with delimiter.
So which way is better to send the data.
Via a IDOc with ALE OR
Just download the file by the program and send it to Non-SAP System.
Please suggest me, which option is best and cheapest and need the advantage and disadvantage for both the ways. And also how many hours will took to implement each scenarios.
As per my knowledge, The Idoc with ALE will took 3 Days to build the setup and prepare the IDoc and Conversion program will took 1.5 days to prepare the file.
Note:There are maximum 8 fields needs to send to the Non-SAP System from SAP. So not much information.
Thanks in Advance,
Warm Regards,
Vijay

Hi Gangisetty,
For less no. of fields transfer there is no need at all to go with ALE.
If there is some Standard Master Data to be transfered then IDOC comes very handy.
But if requirement is to fetch data from different tables and some formatting before sending to Legacy System then you should go with conversion Report which will fetch all required data, format or manipulate as per requirement and then using outbound control it can send the flat file Common Shared FTP folder.
Using Conversion Report which will required less development time and you can schedule it as per bussiness requirement.
Using ALE-IDoc may consume some time as you need to create Partner Profile, Logical System etc and it might be required to have PI(XI) as middleware for some internal formatting etc.
Though, Both ways are possible it's upto your call which way to go.
As per info given by you i would suggest to by Conversion Report Method.
Regards,
Vivek

Source tables for Query views and book marks

Hi Gurus,
We are planning to recreate Query views based on a perticular query from ODS to cube.
1. Is there a table that can provide me all the query views created on the portal, Created by(User Name), description based on the query name.
Basically i am looking for the following:
INPUT: Query Name
OUTPUT:
List of all the query views created on that query
The user name or id who created the query view
Description of the query view
2. I tried in meta data repository but it only gives me query views create in older version of the portal and not 7.0.
Appreciate your immediate assistance.
Thanks,
Ravi Ananthuni

Hi Ravi,
You can get the views created on the query and the ods too. But not through table...
This may not the right process but you can find what you want.
Open WAD --> add any web item into the template --> On the left pane --> Generic --> Data Provider --> Query/View --> Click on the View icon present there.....
A popup window opens --> Click on Infoareas --> Goto your Info provider present there --> Expand it, you will find the query created on the info provider and the Views created on that query.
Hope this helps u...
Regards,
KK.

Suggestion for a drag and drop schedule calendar from a database?

Anyone suggest / help with a drag and drop task scheduler/calendar on an hour by hour day by day basis, from a database?
thanks
KL

What parts are you finding inelegantI was a little worried about the possibility of the image lagging behind the mouse pointer. If the application was repainting every time it got a mouse motion event, it might not keep up. And, of course, there is a level-of-effort consideration for the implementation.
Custom cursors?This was actually my first thought. It would certainly be the easiest solution. I've done custom cursors before, but I was a bit worried about the overhead... Not that I have any specific reason, it's just that the application would be changing cursors quite often and I'm used to thinking of cursors as a special system resource that an application shouldn't mess with... Of course, what was true 20 years ago, is not necessarily true today.
Does anyone know if this would be an issue? Can I use custom cursors reasonably freely without serious impact on the graphics subsystem?

Suggestions for query formulation and parsing

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