Blotted method parameter list

As part of a class, I have a method of this form:
static void superVisor( double ZC, double thetaX, double thetaY)
The program runs fine but now I need to pass multiple values of ZC, thetaX and thetaY. The only way I can think of is to declare them as arrays - I'm looking at arrays sizes of 10,000+. This will really blot the parameter list! The list could be read from memory or from a file. I'm looking for ideas. Thanks

Using a specific data structure needs considering these points -
Would the underlying data need to be sorted?
Would you need Random Access?
Would the data change dynamically? etc.
So if you read the values from memory, think about a structure that would optize your requirement, for a file scenario, a Random Access file probably would suit you best.
Hope it's not too abstract!

Similar Messages

Passing Select-Option to OO method via parameter list

Is it possible to pass a reference to a select-option through the parameter list of a method such that the parameter can be used in a "where clause" using the conventional "IN" operator? If so, how should the parameter be typed?
Thanks in advance,
Philip Smith

Sure, here's how.
report zrich_0002 no standard page heading.
tables: mara.
*       CLASS lcl_app DEFINITION
class lcl_app definition.
public section.
    types: t_matnr type range of mara-matnr.
    data: imara type table of mara.
    methods: constructor importing im_matnr type t_matnr.
endclass.
*       CLASS lcl_app IMPLEMENTATION
class lcl_app implementation.
method constructor.
    select * into table imara from mara up to 100 rows
                 where matnr in im_matnr.
    check sy-subrc = 0.
endmethod.
endclass.
data: myapp type ref to lcl_app.
select-options: s_matnr for mara-matnr.
start-of-selection.
create object myapp
        exporting
             im_matnr = s_matnr[].
Welcome to SDN!. Be sure to award points for helpful answers and mark your post as solved when solved completely. Thanks.
REgards,
Rich Heilman

Alternatives to long parameter lists when calling methods

I've heard you shouldn't have more than 3 parameters when calling methods. What are the alternatives to long parameter lists when calling methods? Compounding parameters into new inner classes, declaring them as member fields? Which one is preferable?

Okay, I get it. But since it's late in the day, I'll share my additional wandering thoughts. And I'll just go ahead and preemptively slap myself for doing so. Ouch! There. So the rules are more like this:
1) Only use setters if the values in question are meant to be part of the state of an object.
2) In general, don't let external entities directly set the state of an object.
Which can be combined into:
1) In general, never use setters.
Which could be reworded to:
1) Only use setters in non-general situations.
Or:
1) Only use setters when setters are a good solution...which isn't very often...generally speaking...
Or if I were to infer when it's a good solution:
1) Only use a setter when it is useful to the caller and has no significant negative effects on the operation of the object nor the maintainability, size, or performance of the class...generally speaking...
Actually, you might just infer from here forward that the "generally speaking" is implicit to every rule, and is essentially the "There is an exception to every rule" rule. Which is an interesting rule because it can be applied to itself, resulting in a paradox...generally speaking...but I digress.
And then translated back to the original topic:
1) You can use a setter instead of a constructor argument so long as the value isn't needed at time of construction (or a default value will suffice) and it is useful for the caller to be able to use the setter and using the setter has no significant negative effects on the operation of the object nor the maintainability, size, or performance of the class.
But this won't quite cut it either. With the input of others, we could eventually devise a very concise rule, but it will end up being so long that on one will ever read it...making it an ideal candidate to be included in a legal document. Which will eventually find it's way into a very long scroll pane with a check box at the end exclaiming that you read the document, at which you will not be able to continue unless you check the check box...at which point, what do you do? After all, you are not a liar...generally speaking...
In summary, you could potentially use setters in some limited cases, but in the general sense, that's more of an option than a recommendation. :-)

Passing Java statements in the parameter list

I am relatively new to Java and have a need to create a method which has a Java statement passed to it in the parameter list. The purpose is to optionally run this statement within the method. For example:
I have a method called rotateAndTranslate that sets up an Affine Transform by saving the existing transform context, creating a new transform, and then invoking that transform. After the new transform is invoked, I would like to have the ability to run different Java graphics commands (or not) before continuing with the remaining portion of the existing method (in this case, restoring the previous transform.
I am not able to find any clear information on how to pass in Java statements and then invoke them.
Can someone help with this? Please keep it simple as I am still trying to get my head around Java and OOP.
Carl

you're talking about closures, more or less, which java doesn't currently have
you can get close to it by using anonymous inner classes. define an interface, say Transformer, and pass instances of that as arguments:
public interface Transformer {
void transform();
Transformer transformer = new Transformer() {
public void transform() {
// do the work here
MyTransformerClass.doTransform(transformer);
...obviously, the MyTransformerClass.doTransform() must take a Transformer as a parameter

Non fully qualified class names in parameter list

Hi Folks,
When I generate my documentation the fully qualified class names (for each parameter) appear in the parameter list for methods. In looking at the documentation on this site, a hyperlink to the class using the only the class name appears. Can anyone provide thoughts on how this is achieved? Thanks.

The -link and -linkoffline options enable the documents to link to other API documentation
generated in separate runs of javadoc. Linkoffline is usually the one you want.
http://java.sun.com/j2se/1.4/docs/tooldocs/win32/javadoc.html#linkoffline
With 1.4.0, you can also choose to omit the package name even if -link or -linkoffline
is not used by using -noqualifier.
-Doug Kramer
Javadoc team

Why business component does not support generics method parameter

Hi Folks,
I have created a business component and in this business component I have added a public method which takes a parameter - List of map (Like List<Map<String, String>> inputListOfMap). Now when I try to run the artifacts for this business component it gives an error
ERROR
com.splwg.shared.common.LoggedException: No method declaration for createListElements found matching argument types [List, Element, String, String] with pattern public\s+(final\s+)?(<[^>]*>\s+)?([\w\.]+)\s*(<[\w<>,\s\.]+>)?\s+createListElements\s*$\s*((\w*\.)+)?(List)(\<[^\>]*\>)?\s+\w+,\s*((\w*\.)+)?(Element)(\<[^\>]*\>)?\s+\w+,\s*((\w*\.)+)?(String)(\<[^\>]*\>)?\s+\w+,\s*((\w*\.)+)?(String)(\<[^\>]*\>)?\s+\w+\s*$\s*(throws [^\{]+\s*)?[;\{]
After checking the spl-tool2.2.0 jar class JavaSourceFile.java i am guessing that such method parameters are not supported. It compiles well if its a simple Map or List. Also works fine if I make the method as private. But in this case I cannot use this method from any other class... which I don't want.
it would be great help if anyone can suggest what needs to be done to overcome this issue
Following is the method of Business Component
public void createListElements(List<Map<String, String>> inputListOfMap, Element sourceElement, String groupName, String listElementName) {
          logger.info("createListElements ");
          Element groupElement = null;
          Element listElement = null;
          if(!isBlankOrNull(groupName)){
               groupElement = sourceElement.addElement(groupName);
          if(notNull(inputListOfMap) && inputListOfMap.size()>0){
               for (Map<String, String> inputMap : inputListOfMap) {
                    //If group name is provided then put the list element will be within the group element else within the bill element
                    if(notNull(groupElement))
                         listElement = groupElement.addElement(listElementName);
                    else
                         listElement = sourceElement.addElement(listElementName);
                    for (Map.Entry<String, String> mapEntry : inputMap.entrySet()) {
                         String elementName = mapEntry.getKey();
                         String elementValue = mapEntry.getValue();
                         if(notBlank(elementName) && notBlank(elementValue)){
                              listElement.addElement(elementName).addText(elementValue);
     }

Hi Victor,
the issue is that the archive pool in your NWDS is not set up properly. Could you check the configuration of the development configuration? I guess you are developing in Local Development, right? Please check in the "Component Browser" that the two Software Components "NWMCLIENT" and "XOCA" are present and contain some DCs inside them. If this is not true, than something went wrong with your setup of the IDE. The modifications of the default.confdef are most likely not right.
Please come back to me if you don´t know how to proceed.
Regards,
Stefan

Default method parameter values

I really, really think that they should incorporate default method parameter values in the next major release.
It is time-consuming, obstructing and confusing to have methods with 1...n parameters.
I.e.
public void doStuff(int id)
    doStuff(id,"",false,Collections.EMPTY_LIST, new Date());
public void doStuff(int id, String name)
doStuff(id,name,false,Collections.EMPTY_LIST, new Date());
public void doStuff(int id, String name, boolean sort)
doStuff(id,name,sort,Collections.EMPTY_LIST, new Date());
public void doStuff(int id, String name, boolean sort, List values)
doStuff(id,name,sort,values, new Date());
public void doStuff(int id, String name, boolean sort, List values, Date date)
doStuff(id,name,sort,values, date);
}Not to mention the amount of JavaDoc-tags it requires.
Wouldn't it just be simpler, more understandable and easier to have it as:
public void doStuff(int id, String name : "", boolean sort : false, List values : Collections.EMPTY_LIST, Date date : new Date())
    //Do the stuff here
}Suggestions?

I agree that getting default method parameter values implemented will be a good thing.
If you really have a large number of methods (>5) that usally just add a parameter with a default value, you could introduce a "Parameter Object" that contains the defaults for the parameters. The drawback is of course an extra indirection to get to the parameter.
class MyParameterClass() {
String name = "";
boolean sort = false;
List values = Collections.EMPTY_LIST;
Date date = new Date();
myMethod(String arga, String argb) {
   return myMethod(arga, argb, new MyParameterClass());
myMethod(String arga, String argb, MyParameterClass params) {
}arga and argb are there to illustrate you might have parameters you don't have defaults for. (Yes, you could include them in the constructor of MyParameterClass instead.)

How to figure out class of method parameter given a VariableElement?

Background:
I have a class that extends AbstractElementVisitor6<String, VisitorContext>
In visitExecutable() I do something like this...
try {
    // processingMethod is a member variable of the visitor
    processingMethod = true;
    MyAnnotation foo = e.getAnnotation(MyAnnotation.class);
    if (foo != null) {
        List<? extends VariableElement> parameters = e.getParameters();
        for (Element enclosee : parameters) {
            enclosee.accept(this, context);
        // do other stuff
        return null;
    return null;
} finally {
    processingMethod = false;
}I then end up in visitVariable(VariableElement ve, P). Which is good.
However, I have been running in circles for at least a day now in the javadoc, trying to figure out how to get from a VariableElement to knowing what the class of the parameter is. I have figured out a way (correct or not) of knowing if it's a primitive type...
ve.asType() instanceof PrimitiveType But I'm stuck on figuring out what the class of the thing is. The closest thing I can see is if I can somehow turn the VariableElement into a TypeElement, I can use getQualifiedName(), but I'm haven't found that, and I'm not sure if that's the right answer either.
Here's the pseudocode of visitVariable...
public String visitVariable(VariableElement e, VisitorContext context) {
    if(processingMethod) {
        // if it's a primitive type - OK
        // do the right thing
        // else
        //   figure out what the class of e is   HELP!
        //   do the right thing
        return null;
}In summary...
How do I get the class of a method parameter from a VariableElement?
Thanks

When would this not be possible? Intersections types. See [JLS 3rd 4.9|http://java.sun.com/docs/books/jls/third_edition/html/typesValues.html#4.9] Specifically
"It is not possible to write an intersection type directly as part of a program; no syntax supports this."
Also, I'm curious about the string representation in the first place. I assume there's not direct handout of class objects because we're in the compiler and can't assume that a type is a valid "thing" yet? e.g. it may not have been compiled yetCorrect.
I was just thinking about how to represent the information, when it occurred to me that I probably ought to just reuse type mirrors and/or elements. Would you recommend this strategy? This is an interesting area of writing annotation processors. In order to apply any (what we call) extra-lingustic constraints and generate error messages when someone breaks the rules, you normally need the elements and types in order to make assertions about types being correct etc. I normally do this in the data collection phase, and don't collect any data for uses that are erroneous. I haven't tried doing the error checking after the collection phase.
When you are generating the source code, (after all the data is collected) all you need is CharSequences (normally Strings). In fact extracting those from elements and types at the point that is writing the source file can make the code more complex than it needs to be, so I prefer to just have everything in Strings at this point. It makes the code that is generating code a little easier to understand. I often build an inner class to hold all the strings (in fields or in collections as appropriate) which I have collected from each annotated element, so there is some structure there.
Are there any examples or other advice out there for doing this that you can point to?There are a few examples. Check out the [hickory project on java.net|https://hickory.dev.java.net/] You might find some useful tools there to assist writing your processor (such as prisms ) and [writing you unit tests|https://hickory.dev.java.net/nonav/apidocs/index.html?net/java/dev/hickory/testing/Compilation.html] . Hickory's unit tests include several examples of annotation processors, [this one|https://hickory.dev.java.net/source/browse/hickory/trunk/code/test/net/java/dev/hickory/incremental/ServiceProviderProcessor.java?rev=22&view=markup] illustrates the points I am making, and there are also some in code samples in the javadoc, for example [the same thing again |https://hickory.dev.java.net/nonav/apidocs/index.html?net/java/dev/hickory/incremental/StateSaver.html].
Bruce

When sharing iMovie11 project with iDVD inmediately message 'the project could not be prepared for publishing because an error occurred (Error in user parameter list). Finalize issue?

When sharing my 60 minutes iMovie project with iDVD inmediately message 'The project could not be prepared for publishing because an error occurred (Error in user parameter list)' appears. Could not find the user parameter list, so I've no more info about this error.
Option File - Finalize Project gives inmediately the same errormessage.
Also option Share - Media Browser - Large/Medium/Mobile give the same errormessage.
Please advise, thank you!

Additional info: trying to write to internal disk (268 GB Free out of 499 GB)
Please advise, alko80

Reports 6.0 and Parameter Lists and Generate to File

I am using the run_product built in from Forms 6.0 and opening
up a report passing it several parameters via a parameter list.
Everything works great when previewing the report.
There is the option in the report preview under File -> Generate
to File. When I generate a report to file using any type of
format it appears that the report does not use the parameters
that I passed in originally from the form. It appears that it
looses all the parameters I passed in. This is most concerning
to me. Am I doing something wrong or is this a "feature" I
didn't know about? I really would like users to have this
ability.
null

Yes I guess this will work, but the option to generate to file
is extremely misleading if you ask me. This option should
generate the current report with the current parameters. This
is unacceptable as far as I am concerned and should be
considered a bug. Oracle needs to give us more control over
FORMS and REPORTS into all too many situations I have been
frustrated because I am not able to do something that I want to
do.
I feel in general REPORTS object is very limited compared to
crystal reports....
Dan Paulsen (guest) wrote:
: Give the user the option on the calling form whether to save
the
: report to file or just view it. If they want to save to file,
: pass the parameter to save to file when you call the report
and
: suppress the parameter form, this will eliminate the problem.
: Spencer Tabbert (guest) wrote:
: : I am using the run_product built in from Forms 6.0 and
opening
: : up a report passing it several parameters via a parameter
: list.
: : Everything works great when previewing the report.
: : There is the option in the report preview under File ->
: Generate
: : to File. When I generate a report to file using any type of
: : format it appears that the report does not use the
parameters
: : that I passed in originally from the form. It appears that
it
: : looses all the parameters I passed in. This is most
: concerning
: : to me. Am I doing something wrong or is this a "feature" I
: : didn't know about? I really would like users to have this
: : ability.
null

How to get key name from parameter list

hi..
i want string from parameter list.. i hv already created parameter list like
ADD_PARAMETER (param_list_id, 'EMPID', TEXT_PARAMETER,'123');
ADD_PARAMETER (param_list_id, 'EMPNM', TEXT_PARAMETER, 'ABC');
ADD_PARAMETER (param_list_id, 'EMPADD', TEXT_PARAMETER, 'XXX');
i got value like '123' ,'ABC', 'XXX' using
eg. get_parameter_attr(param_list_id,'EMPID',aprmlist,avalue)
but i want key name like 'EMPID' , 'EMPNM', 'EMPADD' from param_list_id
is it possible to get this key name from parameter list ???
Thanks...

I cannot think of a way to do that. The code that reads the list is supposed to know the key names. That is sort of the point with parameter lists. If you need to have parameter lists that can be interepreted by some code that doesn't know about a specific list but knows how to interpret it by inspecting the key names, perhaps you can specify a separate parameter list with the key names as values and call the keys of that list something generic?

How and where should I create a parameter list

Hi, I4m trying to create a parameter lists but I don4t know where and how.
I guess as a program unit but as function or procedure, sorry I4m new on this for that I4m finding this a bit difficult. Please, someone could help me to understand this:
PROCEDURE Run_Emp_Report IS
pl_id ParamList;
BEGIN
** Check to see if the 'tmpdata' parameter list exists.
pl_id := Get_Parameter_List('tmpdata');
** If it does, then delete it.
IF NOT Id_Null(pl_id) THEN
Destroy_Parameter_List( pl_id );
END IF;
** Create the 'tmpdata' parameter list afresh.
pl_id := Create_Parameter_List('tmpdata');
** Add a data parameter to this parameter list that will
** establish the relationship between the named query
** 'EMP_QUERY' in the report, and the record group named
** 'EMP_RECS' in the form.
Add_Parameter(pl_id,'EMP_QUERY',DATA_PARAMETER,'EMP_RECS');
**Pass a Parameter into PARAMFORM so that a parameter dialog
will not appear
**for the parameters being passing in.
Add_Parameter(pl_id, 'PARAMFORM', TEXT_PARAMETER, 'NO');
** Run the report synchronously, passing the parameter list
Run_Product(REPORTS, 'empreport', SYNCHRONOUS, RUNTIME,
FILESYSTEM, pl_id, NULL);
END;

Hi,
What you've pasted the code here is absolutely correct.
You'll have to write the code in Forms builder.
You can either paste the same code in a procedure & call that procedure
from button's When-Button-Pressed trigger or paste the code in
your button's When-Button-Pressed trigger like this :
DECLARE
pl_id ParamList;
BEGIN
** Check to see if the 'tmpdata' parameter list exists.
pl_id := Get_Parameter_List('tmpdata');
Run_Product(REPORTS, 'empreport', SYNCHRONOUS, RUNTIME,
FILESYSTEM, pl_id, NULL);
END;
However, don't write the code in a function as you will need to return some value from the function.
Thanks,
Mayur Shah
[email protected]

CR 2008, all values in parameter list not showing up

The parameter is not optional, the parameter value exists in the view on SQL server, but at report run-time, only get 5 pages of possible values to select from and user needs to go back farther to get the required report.
I can get the report to run in full CR version by passing the value into the select expert, but users only get prompt window from the runtime version of CR.
How can I get ALL the values of the field in the view to show up in parameter list?
Thanks for any pointers.
Robert

Not sure if the help you metion is equivalnet to KB [1218588 - How to increase the number of values in a dynamic parameter list?|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333233313338333533383338%7D.do], but have a look.
Also, make sure you are on SP3:
https://smpdl.sap-ag.de/~sapidp/012002523100007123572010E/cr2008_sp3.exe
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup
Got Enhancement ideas? Try the [SAP Idea Place|https://ideas.sap.com/community/products_and_solutions/crystalreports]

Invoking a web service - cannot resolve method parameter

I am getting a failure trying to invoking a method called sl_Access on a web service.
(Same code worked in Workshop 7.1, but fails in Workshop 8.0. The WDSL has not
changed.) WLW is not able to revolve a method parameter called piCustNo. The service
call works in WLW 7.1, but not 8.0.
Any insight on how to fix this problem?
The service call
private AnonType_sl_AccessResponse response = null;
nlastid = response.piLastId;
the service definition from wsdlControl.jcx ----
* @jc:protocol form-post="false" form-get="false" http-soap="true"
public AnonType_sl_AccessResponse sl_Access (int piCustno);
console error output -----
Submitted at Wednesday, October 8, 2003 2:15:22 PM EDT
Exception in sl_Access
com.bea.control.ServiceControlException:
SOAP-ENV:Client
An error was detected in the Web Service request. (10894)
Cannot resolve method sl_Access parameter ns:piCustno (10933)e91a6247e9b693c3:-1b6d127:f811fed2db:-8000#17
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceControlImpl.jcs:846)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java:359)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:420)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:393)
at com.bea.wlw.runtime.jcs.container.JcsProxy.invoke(JcsProxy.java:387)
at $Proxy11.sl_Access(Unknown Source)
at com.ovid.service.AccessService.getRepl(AccessService.java:93)
at com.ovid.service.AccessService.processBatch(AccessService.java:71)
at Controller.runAccess(Controller.jws:399)

see:
http://newsgroups.bea.com/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.workshop&item=1730
Joe Smith wrote:
>
I am getting a failure trying to invoking a method called sl_Access on a web service.
(Same code worked in Workshop 7.1, but fails in Workshop 8.0. The WDSL has not
changed.) WLW is not able to revolve a method parameter called piCustNo. The service
call works in WLW 7.1, but not 8.0.
Any insight on how to fix this problem?
The service call
private AnonType_sl_AccessResponse response = null;
nlastid = response.piLastId;
the service definition from wsdlControl.jcx ----
* @jc:protocol form-post="false" form-get="false" http-soap="true"
public AnonType_sl_AccessResponse sl_Access (int piCustno);
console error output -----
Submitted at Wednesday, October 8, 2003 2:15:22 PM EDT
Exception in sl_Access
com.bea.control.ServiceControlException:
SOAP-ENV:Client
An error was detected in the Web Service request. (10894)
Cannot resolve method sl_Access parameter ns:piCustno (10933)e91a6247e9b693c3:-1b6d127:f811fed2db:-8000#17
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceControlImpl.jcs:846)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java:359)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:420)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:393)
at com.bea.wlw.runtime.jcs.container.JcsProxy.invoke(JcsProxy.java:387)
at $Proxy11.sl_Access(Unknown Source)
at com.ovid.service.AccessService.getRepl(AccessService.java:93)
at com.ovid.service.AccessService.processBatch(AccessService.java:71)
at Controller.runAccess(Controller.jws:399)

Passing a parameter list from a web form to a report

I am using FORMS6 and REPORTS6, with OAS 4.07 on NT4 (SP3).
In client server mode all works well - i am able to pass parameter lists from my calling form to the relevant reports and view them (using RUN_PRODUCT).
However, when i try and do the same by deploying the web Form I come up against several obstacles.
1. How do you pass a parameter list over without using "Paramform=Yes" - a waste of time seeing a html version of the reports parameter form when all the necessary parameters have been selected in the form.
2. if i use web.show_document, with paramform=no, the report runs but with it's default settings.
Any light you can shed would be greatly appreciated.

Hi Tony ,
Launcher form is just a simple form(Non database form) which will be having all fields that is required for the report and button to run the report .
When button pressed trigger
Pass all the parameters which are required using Run_product tool & Call the report by Web.Show_document
Best way to see the report is in .pdf format in adobe acrobat reader
I hope it will help you
Bye
Rao guduru

Blotted method parameter list

Similar Messages

Maybe you are looking for