JSF conditions and loop

Dear programmer
I'm new to JSF. I have almost finished to read all the tutorial and there is something that bothere me. In all the the examples, there is no use of condiion statements (if) or loops (for, while). How is it possible to program without them?
I guess that with renderer I can do things that I could do with if statement and with UIData component I can create loop, but is it enough? It seems very odd to me that there are no conditions or loops.
(Or maybe there are and I just not aware to it)
For example I have a frame that is compounded from 2 forms. The first enable to user to search something. The second shows the results. I don't want the form of the results to be shown if there are no results. Can it be done with renderer?
In order to show the results I need a loop. Is UIData enough?

I have a frame that is compounded from 2
forms. The first enable to user to search something.
The second shows the results. I don't want the form
of the results to be shown if there are no results.
Can it be done with renderer?
In order to show the results I need a loop. Is UIData
enough?rendered="#{myBackBean.resultsAvailable}"
You should have had more extensive JSF tutorial or an introductory book.
I recommend Hans Bergsten's JavaServer Faces from O'Reilly, in which you could see
many example code for conditionals and loops without using 'if', 'while' nor 'for'.

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    I just bought 15' Mac book pro. as i work a lot on Garageband. I even downloaded all the drummers and loops to update the new Garageband 10.0.1
    now my problem is that all my past work which i did on older version on GB, has missing sounds in it. so here are my questions
    1. DO i have to install JAMPACKS on my new Macbook pro?
    2. Are JAMPACKS still compatable with the new GB?
    3. There is an UPDATE on the new GB on Appstore and once i click it, it goes to billing no detail is provided what this update is for so help!
    thanks

    3. There is an UPDATE on the new GB on Appstore and once i click it, it goes to billing no detail is provided what this update is for so help!
    See: This document explains what the in-App purchase is about.
    Expanding GarageBand for Mac (v10.0) content with an in-app purchase
    Do you still have your old Mac?
    How did you migrate from the old Mac to the new Mac? Did you transfer your old software and documents using Setup Assistant? Then your old GarageBand '11 version should have been migrated, and all your instruments.
    if you did  not migrate GarageBand '11, copy your old Instruments Library and Loop Library over from the old mac. Copy the following folders to a thumbsdrive and merge the missing dontents into the corresponding folders on your new mac:  (from the system library - the top level library folder on your Macintosh HD):
    /Library/Application Support/GarageBand/
    /Library/Audio/Apple Loops/
    And if you would like to continue to use GarageBand '11 for access to missing features, copy also /Applications/GarageBand over, but to a subfolder of Applications. I recommend, to install the old GarageBand as well. It can be used in parallel to GB 10.0, and will come in handy, if your old projects are having problems.
    1. DO i have to install JAMPACKS on my new Macbook pro?
    2. Are JAMPACKS still compatable with the new GB?
    The JamPacks are nice to have, a terrific collection of instruments and loops, but if you did not have them previously, that will not help with your missing instruments. You can instll them by buying Mainstage 3. They work well with GarageBand 10.0
    -- Léonie

  • Is there any way to have a COMPLETE list of all samples and loops ( Logic 8

    I'm sure it's been posted previously, but anyway, I'm looking to buy new Apple Loops libraries and I have faced the fact , that many of the sounds and loops produced by third parties manufacturers have been already included in Logic installation discs.
    I have a list of Apple Loops DVD's that have been included with Logic somewhere, the problem is, Apple didn't post ( I believe) the credits of all 3rd party manufacturers that have produced these libraries that are included with Logic or Garage band. Is there any way to have a COMPLETE list of all samples and loops that are included with Apple DAW's so I wouldn't duplicate anything ? I'm pretty much positive that Apple had other companies to sound design and sample all libraries for them, so is there also a way to have a list of those manufacturers? Again, the objection is to start upgrading the sound library without any possible duplication?
    Thanks in advance!

    Chris, I certainly don't mind additional questions and postings.
    I believe there are many issues with Apple Loops and Logic that need to be resolved and people need to be aware of that. Unfortunately, in opposite to the old "german" version of Logic , there's no lifetime tech support, you can't even call and ask the question after 60 days , which isn't right for a professional software of this level, especially considering the fact that many things still remain vague in Logic even for developers and tech support people!( believe me, I've called and asked!)
    Issues like that need to be resolved over the phone with the company, period!
    One thing I also learned over the years as a Mac OSX user, if something doesn't work, don't mess with it. Delete your drive and re-install everything. This is very frustrating , I know, but unfortunately this is the only way to deal with OSX issues, if you got a problem with your system, don't try to fix it. It's never gonna be the same again. I know , it's off the topic a little bit, but if your content is missing from the system files, before installing your new Logic, back up your important files, wipe up your drive and clean install Mac OSX , run updates and then install the Logic. Most likely , everything will be in it's place, at least 90% or more. I gave up trying to make two system in my house to be compatible 100% , but it's OK if they're 90% or more identical. I spent enormous amount of time trying to find out what's missing and where, I visited most of the forums and there's no clean answer.
    Message was edited by: Moderator

  • Why can I only accept the new terms and conditions and keep getting sent back to agreeing (5 times and still going in circles)

    Seems that I can no longer install anything, as every time I get forced to a page to read and accept the new terms and conditions - and no matter if I accept them or not, I only get sent back to read them again.   Another reason my next smartphone will be android based!

    The iTunes and Mac App Store / iCloud problem spontaneously resolved for me as of 21:54 Pacific Standard Time on 9/30/2012.
    Someone at Apple was aware of and fixed the problem. Finally.
    Yeah!

  • Pl/sql cursor and loop

    Hello.
    I need help creating a cursor and loop that will update a column based on data from another column. I keep getting the following errors. Any suggestions? These identifiers are valid tables in columns in my data base.
    SQL> DECLARE
    2
    3      CURSOR c1 IS
    4           SELECT SectionID, Coursename, StudentID, FinalGrade from Registration, Section, Grade WHERE registration.sectionid = grade.sectionid and registrationid.studentid = grade.studentid;
    5
    6      v_SectionID number(10);
    7      v_CourseName varchar(20);
    8      v_StudentID number(10);
    9      v_FinalGrade varchar2(5);
    10
    11 BEGIN
    12
    13      OPEN c1;
    14
    15      LOOP
    16           FETCH c1
    17           INTO v_SectionID, v_CourseName, v_StudentID, v_FinalGrade;
    18           EXIT WHEN c1%NOTFOUND;
    19
    20           update grade
    21
    22           SET FinalGrade = translate(substr(v_CourseName,-1,1),'ABCDEFGHIJKLMNOPQRSTUVWXYZ','AAAAAABBBBBCCCCCDDDDEEEEEE')
    23
    24           where Grade.StudentID = Registration.StudentID;
    25
    26      END LOOP;
    27 CLOSE c1;
    28 END;
    29 /
              SELECT SectionID, Coursename, StudentID, FinalGrade from Registration, Section, Grade WHERE registration.sectionid = grade.sectionid and registrationid.studentid = grade.studentid;
    ERROR at line 4:
    ORA-06550: line 4, column 140:
    PL/SQL: ORA-00904: "REGISTRATIONID"."STUDENTID": invalid identifier
    ORA-06550: line 4, column 3:
    PL/SQL: SQL Statement ignored
    ORA-06550: line 24, column 27:
    PL/SQL: ORA-00904: "REGISTRATION"."STUDENTID": invalid identifier
    ORA-06550: line 20, column 3:
    PL/SQL: SQL Statement ignored

    863737 wrote:
    I am taking a intro course online so I am trying to teach myself this. The most basic rule for designing and writing good Oracle code that will perform and will scale is to use SQL for what it is good at and using PL/SQL for what it is good at. And between the two, SQL is by far superior when it comes to crunching data in the database.
    The simple maxim is Maximize SQL. Minimize PL/SQL.
    What you want to do with that PL/SQL code can be done using SQL only. And since you are learning SQL and PL/SQL, it is very important that you learn the correct way to do this.
    Have a look at Oracle® Database SQL Language Reference guide.
    The update syntax supports:
    UPDATE <dml_expression_clause>
    Where this +<dml_expression_clause>+ is a SELECT statement (aka an in-line view) - that can contain joins.
    Simple example. You join tables t1 and t2 to identify the rows in t1 to update. The +<dml_expression_clause>+ will define this join. The actual update part (using the SET clause) will update the relevant rows in t1.
    This is also called an updatable view - though the +<dml_expression_clause>+ does not need to use an actual view.
    Have a look at AskTom for a discussion on this. Also note that you can also create a view and define an "instead-of" trigger on the view - this particular feature enhances the ability to update DML expressions - but is not a prerequisite.
    Note that there can be very significant performance degradation by NOT using an UPDATE on a +<dml_expression_clause>+ and instead coding that manually via PL/SQL.
    So do yourself a favour and learn the CORRECT way to resolve the type of UPDATE problem you have.

  • In cursor i have two queries where put the condition and how to print the d

    hi i have 2 tables 1 is emp(empid,empname,dept,grade)
    2 is salary(grade,salary)
    in cursor when ever grade is increased salary automatically increased
    in 2 diffrent queries where i will put the if condition and how to print the output.
    any one can please suggest me.
    finally my required out put is
    empid,empname,grade,salary
    thanks

    It is always helpful to provide the following:
    1. Oracle version (SELECT * FROM V$VERSION)
    2. Sample data in the form of CREATE / INSERT statements.
    3. Expected output
    4. Explanation of expected output (A.K.A. "business logic")
    5. Use \ tags for #2 and #3. See FAQ (Link on top right side) for details.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

  • Why exactly is a JSF IMP and a API, what is the difference?

    Why exactly is a JSF IMP and a API, what is the difference?
    I understand that JavaServer Faces technology is a framework for building user interfaces for web applications with a set of APIs for UI components and a custom tag library for expressing a JavaServer Faces interface within a JSP page.
    But, why is there a jsf-impl.jar and a jsf-api.jar?
    A clarification would be appreciated.
    Thanks,

    CowKing: Thank you.
    In a discussion, when a developer refers to RI, they mean the jsf-api.jar only?
    I don't need the jsf-impl.jar in my compile class path nor in my SJSAS 8.2 domain library directory either?
    Thanks,
    --Todd                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

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