Static function parameter help

Hi,
I have two functions in the same file, how can I use the first function as default value in the second function.
public static function get decimalFormatter1():NumberFormatter{
I try this:
public static function secondFunction(param1:String, param2:Int=0, param3:Function=decimalFormatter1):Array{
Getting error: -1047: Parameter initializer unknown or is not a compile-time constant.
Any ideas?
Thanks!

Thanks for you reply and help Gordon.
I am getting this error at the decimalFormatter1 line:
-1067: Implicit coercion of a value of type mx.formatters:NumberFormatter to an unrelated type Function.
Here is my simple get function:
public static function get decimalFormatter1():NumberFormatter{
          var decimalFormatter:NumberFormatter = new NumberFormatter();
          decimalFormatter.rounding = "nearest";
          decimalFormatter.precision=1;
          decimalFormatter.useNegativeSign = false;
          return decimalFormatter;
Any other way?

Similar Messages

Need help with usage of static functions

Hi,
I tried instantiating objects within static functions as follows: It gives error:
If someone can explain an alternate way of doing things, I would appreciate:
public class C {
* @param args
public static void main(String[] args) {
Y.Fn1();
public class X {
public void Fn2(){
int b=2;
System.out.println("hello");
public class Y {
public static void Fn1()
int a=2;
X obj = new X();
obj.Fn2();
The actual error is:
Cannot make a static referencxe to the nonstatic method Fn2() from the type X Y.java
Need Help : If someone can comment on the following, I would appreciate:
I have a class Session, which has a method ProcessEvent()
public class Session{
public synchronized void processEvent(Event e)
// Processing of the event
// Generate a response for the Event
This Session class is the mainstream code..
Now I want to write a TestClass that will test the main code.
So I have a Test class as below:
public class Test {
public static void sendReq()
// Construct an event and call processEvent Function from the main code
Event ev = new Event();
// Fill the event with parameters
Session sess = new Session();
sess.processEvent(ev);
What I am thinking of doing is: Call the static method in another class called Manager of the mainstream code for test purpose as follows:
public class Manager {
public void somefunction()
//*** Just for test purpose: do the following line **//
Test.sendReq();
I am not sure what I am trying to do will work. I would appreciate if you can comment on that or suggest something that would work for me.
Another thing which I want to do is:
Inside ProcessEvent(), I want to call another static method ParseandValidateResponse() of the TestClass This looks odd, but as long as it works, it would be fine for me because this is only for test purpose.
In this case, I would write,
public class Session{
public synchronized void processEvent(Event e)
// Processing of the event
// Generate a response for the Event
Test.parseandValidateResponse(Response res);
public class Test {
public static void sendReq()
// AS SHOWN PREVIOUSLY
public static void parseandValidateResponse(Response resp)
// validate the response
}

Sorry I thought no one had replied. When I posted here, I missed seeing yr reply. Later just now I saw yr reply It was in the second Page
(Earlier I was looking only in first page by mistake)
Meena

Can not call a static function with-in a instance of the object.

Another FYI.
I wanted to keep all of the "option" input parameters values for a new object that
i am creating in one place. I thought that the easiest way would be to use a
static function that returns a value; one function for each option value.
I was looking for a way to define "constants" that are not stored in
the persistent data of the object, but could be reference each time
the object is used.
After creating the static functions in both the "type" and "body" components,
I created the method that acutally receives the option input values.
In this method I used a "case" statement. I tested the input parameter
value, which should be one of the option values.
I used a set of "WHEN conditions" that called the same
static functions to get the exact same values that the user should
pass in.
When I try to store this new version, I get the error:
"PLS-00587: a static method cannot be invoked on an instance value"
It points to the first "when statifc_function()" of the case function.
This seems weird!
If I can call the static method from the "type object" without creating
and instance of an object, then why can't I call it within the body
of a method of an instance of the object type?
This doesn't seem appropriate,
unless this implementation of objects is trying to avoid some type
of "recursion"?
If there is some other reason, I can not think of it.
Any ideas?

Sorry for the confusion. Here is the simplest example of what
I want to accomplish.
The anonymous block is a testing of the object type, which definition follows.
declare
test audit_info;
begin
test := audit_info(...);
test.testcall( audit_info.t_EMPLOYER() );
end;
-- * ========================================== * --
create or replace type audit_info as object
( seq_key integer
, static function t_EMPLOYER return varchar2
, member procedure test_call(input_type varchar2)
instantiable
final;
create or replace type body audit_info
as
( id audit_info
static function t_EMPLOYER return varchar2
as
begin
return 'EMPLOYER';
end;
member procedure test_call(input_type varchar2)
as
begin
CASE input_type
WHEN t_EMPLOYER()
select * from dual;
WHEN ...
end case;
end;
end;
The error occurs on the "WHEN t_EMPLOYER()" line. This code is only
an example.
Thanks.

Problem with instantiation in static function

I have a problem with instatiation of objects in a static function. When I do something like this,
public static void test1() {
String s = new String();
everything works fine, but when I try to do the same with a internally defined class, I get the error "non-static variable this cannot be referenced from a static context".
My code looks roughly like this:
public static void test2() {
Edge e = new Edge();
class Edge {
public int y_top;
public double x_int;
public int delta_y;
public double delta_x;
The compiler complains with the mentioned error message over the creation of a new Edge object and I don't have the slightest clue why... :| When I put the class Edge into an external file, it works.
Can anyone help me out there?

Your class Edge is a member of the instance of the current class. You don't have an implicit instance of the current class (the "this" reference) in a static context, therefore you get the error.
You need to either declare Edge as static, move it outside your class, or create an explicit instance of the outer class which you use to create instances of Edge ("Edge e = new YourMainClass().new Edge()")

Error while calling FM : Function parameter "PE_LFA1" is unknown

Dear Experts,
I am trying to call a FM in my code, but somehow I am getting the following error .Please help !
My code is :
DATA : VENDOR_NO TYPE WSRS_SHVDST_RES-VENDOR_NO,
        PE_LFA2 TYPE LFA1,
        PE_ADDR2 TYPE BAPIADDR1,
        PE_ADRPRT2 TYPE WISO_ADRPRT,
        PE_RETURN2 TYPE WSRS_RETURN,
        PE_LFM2 TYPE LFM1,
        PE_LFB2 TYPE LFB1.
DATA:
    node_vendor                         TYPE REF TO if_wd_context_node,
    elem_vendor                         TYPE REF TO if_wd_context_element,
    stru_vendor                         TYPE if_vendor_view=>element_vendor ,
    item_vendorinp                      LIKE stru_vendor-vendorinp.
navigate from <CONTEXT> to <VENDOR> via lead selection
node_vendor = wd_context->get_child_node( name = if_vendor_view=>wdctx_vendor ).
get element via lead selection
elem_vendor = node_vendor->get_element( ).
get single attribute
elem_vendor->get_attribute(
    EXPORTING
      name = `VENDORINP`
    IMPORTING
      value = item_vendorinp ).
VENDOR_NO = item_vendorinp.
CALL FUNCTION 'WSRS_O_VENDOR_GET_DETAIL'
EXPORTING
PE_LFA1 = PE_LFA2
PE_ADDR1 = PE_ADDR2
PE_ADRPRT = PE_ADRPRT2
PE_RETURN =PE_RETURN2
PE_LFM1 = PE_LFM2
PE_LFB1 = PE_LFB2
IMPORTING
PI_VENDOR_NO = VENDOR_NO.
My Error is :
Note
The following error text was processed in the system HE6 : Function parameter "PE_LFA1" is unknown.
The error occurred on the application server hsdnt24s11_HE6_00 and in the work process 5 .
The termination type was: RABAX_STATE
The ABAP call stack was:
Method: ONACTIONFETCH_VENDOR_DETAILS of program /1BCWDY/A8XPPCRFM5I0CTSGLFDT==CP
Method: IF_WDR_VIEW_DELEGATE~WD_INVOKE_EVENT_HANDLER of program /1BCWDY/A8XPPCRFM5I0CTSGLFDT==CP
Method: INVOKE_EVENTHANDLER of program CL_WDR_DELEGATING_VIEW========CP
Method: IF_WDR_ACTION~FIRE of program CL_WDR_ACTION=================CP
Method: DO_HANDLE_ACTION_EVENT of program CL_WDR_WINDOW_PHASE_MODEL=====CP
Method: PROCESS_REQUEST of program CL_WDR_WINDOW_PHASE_MODEL=====CP
Method: PROCESS_REQUEST of program CL_WDR_WINDOW=================CP
Method: EXECUTE of program CL_WDR_MAIN_TASK==============CP
Method: IF_HTTP_EXTENSION~HANDLE_REQUEST of program CL_WDR_MAIN_TASK==============CP
Method: EXECUTE_REQUEST_FROM_MEMORY of program CL_HTTP_SERVER================CP
Please help.

Hi,
I will ask this way, from where did you get list of parameters for this FM? Try using pattern to call this FM, than you will be proposed with correct interface.
EDIT:
After checking it in system you should switch IMPORTING and EXPORTING
CALL FUNCTION 'WSRS_O_VENDOR_GET_DETAIL'
EXPORTING
    PI_VENDOR_NO             = '99'
*   PI_ACCEPT_NOTFOUND       =
*   PI_PURCH_ORG             =
*   PI_COMP_CODE             =
IMPORTING
   PE_LFA1                  = lv
*   PE_ADDR1                 =
*   PE_ADRPRT                =
*   PE_RETURN                =
*   PE_LFM1                  =
*   PE_LFB1                  =
Best regards
Marcin Cholewczuk
Edited by: Marcin Cholewczuk on Apr 12, 2011 1:20 PM

Crystal report static string parameter is running with null value too...

Hi All,
I am new to crystal report . I am using crystal report XI and in the report I designed contain one static string parameter. If I not enter any value in that parameter field still myu report get run.As per requirement I dnt want to run report unless user enter any value in that field. How to do it? Please help. any comment is valuable.
Thanks

Thanks Json ..
your solution really helps me.Thanks again.
One more issue is here,
I have one subreport . In that 'amount ' field is present which have data type as 'character' in database. I convert it in numeric by using following fromula,
if NumericText ({Command.AMOUNT})
then
ToNumber ({Command.AMOUNT})
when I run report in designer, it works but when I run it on crystal report server it throws error ad "Error in File :Error in formula . 'if NumericText ({Command.AMOUNT}) ' This field name is not known. Details: errorKind "
Can u please help me out of it.
Edited by: girish_613 on May 10, 2010 10:25 AM

Mvc cant access repository classes from static functions in controller(mvc net c# Entity Frame work)

I working on .net MVC Entity Framework (Code First).
I am not able to get Datacontext in repository classes functions when i call these functions from a static function in controller . I am getting the Exception
"An exception of type 'System.NullReferenceException'
occurred in YYYYYY.Web.dll(Default
project dll) but was not handled in user code
Additional information: Object reference not set to an instance of an object."
i need to call static functions since i had to call some functions asynchronously.Like Report generation
This works perfectly fine when called from a non static function in controller.
Thanks in advance
Punnoose

But when i call a function in repository class, With dependency Injection(NInject).
eg:-
public Batch GetBatchDetail(string batchID)
return this.db.Batches.Where(x => x.ID=batchID).FirstOrDefault();
Db is Datacontext
I am getting the Exception "An exception of type 'System.NullReferenceException'
occurred in YYYYYY.Web.dll(Default
project dll) but was not handled in user code
Please do help me
regards
punnoose

Static function in XSLT

Hi,
Could somebody tell me if i can embed a static function (ABAP) in an XSLT.
Thanks in advance
Rachana

Hi,
Thanks a lot and this should help me. But I'm not that well-versed in XSLT.
Hence,
I'm getting an xml namespace not defined error now.
my XSLT looks like this
<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:strip-space elements="*"/>
<xsl:output indent="no"/>
<xsl:template match="TaskType">
    <asx:abap xmlns:asx="http://www.sap.com/abapxml" version="1.0">
      <asx:values>
        <TASKTYPEDESIGN>
          <SBTM_CR_TT_DESIGN>
            <ORIGINAL_LANG>
                             <xsl:value-of select="../@origLang"/>
            </ORIGINAL_LANG>
            <sap:call-external class="CL_SBTM_XML_CONVERSION"              method="GET_SYLANGU">
          <sap:callvalue     param="EXTERNAL"   select="../@language"/>
          <sap:callvariable param="INTERNAL"   name="SY_LANG"/>
          </sap:call-external>
          </SBTM_CR_TT_DESIGN>
         </TASKTYPEDESIGN>
       </asx:values>
    </asx:abap>
</xsl:template>
I tried to fit in that code there...but i guess this is not the way.
please help

Static function issue?

hi,
i am having a static function which fetch some values from data base and put it to an arraylist and return this array list.
some times the returned array list empty even though values are exists in db,all the varibles used in this static functions are local and
this function is very frequently acceessing from diffrent threads
when a static function calls then all the variables in the fuction will have diffrent copies right?
in my example i wondered like one thread is executing this function then in beetween another thread comes and re initilise the variables so i am getting the abive specified error...
please any one help ...

My J2SE version (no EJB's, direct JDBC, no ConnectionPooling) might look something like this, except the connect and close methods are allready in my krc.utilz.jdbc.JDBC class.
package david;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import java.util.logging.Logger;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
class Sql
private final String className;
private final Logger log;
private final Connection conn;
public Sql() throws ClassNotFoundException, SQLException, IOException {
    className = this.getClass().getName();
    log = Logger.getLogger(className);
    try {
      conn = connect(this.getClass().getResourceAsStream("database.properties"));
    } catch (SQLException e) {
      log.throwing(className, "noargs constructor", e);
      throw e;
   * Executes the given query and returns the resulting rows as a List(rows)
   * of Maps(Column name to value).
   * @param String sql - the sql-select-query to execute
   * @param String[] args - the query paramaters (if
   * @return List<Map<String,String>> rows
   * @throws java.sql.SQLException
public List<Map<String,String>> select(String sql, String[] args) throws SQLException {
    final String methodName = "select";
    log.entering(className, methodName, new String[] {"sql="+sql, "args="+args});
    List<Map<String,String>> rows = new ArrayList<Map<String,String>>();
    PreparedStatement stmt = null;
    ResultSet rs = null;
    try {
      stmt = conn.prepareStatement(sql);
      for (int i=0; i<args.length; i++) {
        stmt.setString(i+1, args);
rs = stmt.executeQuery();
ResultSetMetaData md = rs.getMetaData();
int numCols = md.getColumnCount();
while (rs.next()) {
Map<String,String> cols = new HashMap<String,String>(numCols);
for (int c=1; c<=numCols; c++) {
cols.put(md.getColumnName(c).toUpperCase(), rs.getString(c));
rows.add(cols);
} finally {
close(rs, stmt, null);
log.exiting(className, methodName, "rows="+rows.size());
return rows;
public void close(ResultSet rs, PreparedStatement st, Connection cn) {
if(rs!=null)try{rs.close();}catch(SQLException e){log.severe(e.toString());}
if(st!=null)try{st.close();}catch(SQLException e){log.severe(e.toString());}
if(cn!=null)try{cn.close();}catch(SQLException e){log.severe(e.toString());}
* Connects to the database specified in the given connectionProperties.
* @param propertiesStream a java.io.InputStream from which to read
* java.util.Properties - Example contents:
* jdbc.driver=com.mysql.jdbc.Driver
* jdbc.url=jdbc:mysql://localhost/test
* jdbc.username=user
* jdbc.password=pass
* @return Connection - an open connection to the given database.
* @throws ClassNotFoundException if the class named in the
* jdbc.driver property can't be initialized.
* The root cause exception is enclosed.
* Double check the name of the driver class in the properties file.
* Ensure that the named driver class exists is in the classpath.
* @throws SQLException if a database access error occurs.
* The root cause exception is enclosed.
* Check the jdbc.url, jdbc.username, and jdbc.password properties.
private Connection connect(InputStream propertiesStream)
throws IOException, ClassNotFoundException, SQLException
Properties props = new Properties();
props.load(propertiesStream);
String driver = props.getProperty("jdbc.driver");
String url = props.getProperty("jdbc.url");
String username = props.getProperty("jdbc.username");
String password = props.getProperty("jdbc.password");
try {
Class.forName(driver).newInstance();
} catch (ClassNotFoundException e) {
throw e;
} catch (Exception e) {
String msg = "Failed to connect to url: "+url+" as "+username+" via driver "+driver;
throw new ClassNotFoundException(msg, e);
try {
return DriverManager.getConnection(url, username, password);
} catch (SQLException e) {
String msg = "Failed to connect to url: "+url+" as "+username+" via driver "+driver;
throw new SQLException(msg, e);
BTW... search the forums and you'll find something similar to (but a tad more flexible than) this... I wrote a simple "squirrel" in swing about a year or so ago... execute the query, populate a table with the results.
Another trick is the close the database connection on ANY SQLException (to keep it clean)... easy when you use a connection pool.
Cheers. Keith.
Edited by: corlettk on 7/11/2008 00:47 ~~ Wrong file. Doh!

Documentation tags and static functions

I'm an issue with the documentation tags. It appears that if the function is declared as a static function, it won't show up in the generated documentation (I'm using HTML). For example:
static int ArrayLocation(int i1, int i2, int num_coeff)
Will not show up, but if I remove the 'static' keyword then the function will show up in the generated documentation, i.e.:
int ArrayLocation(int i1, int i2, int num_coeff)
Thanks for any help with this.

Hi Wolfgang,
here I send you the documentation of the three functions:
correlate: http://zone.ni.com/reference/en-XX/help/370051P-01/cvi/libref/cvicorrelate/
correlateEx: http://zone.ni.com/reference/en-XX/help/370051T-01/cvi/libref/cvicorrelateex/
normalizedCorrelate: http://zone.ni.com/reference/en-XX/help/370051T-01/cvi/libref/cvinormalizedcorrelate/
I hope this helps you.
Best regards
Suse
Certified LabVIEW Developer (CLD)

Pass rowtype as function parameter, as a Object like type. How?

Hi.
I have the following question.
I have 3 tables:
TAB1
TAB2
TAB3
I declare 3 rowtypes variables, one for each table:
v_tab1 TAB1%ROWTYPE;
v_tab2 TAB2%ROWTYPE;
v_tab3 TAB3%ROWTYPE;
I want to pass a rowtype as a function parameter, but i want the function to allow any rowtype to be passed as parameter, and then inside the function convert that "object" to the correct rowtype.
Is that possible?
In another language like C# for example, i would pass the rowtype as a object type, and then cast it to the correct data type.
I hope you can help me.
Cheers.

To do this they would have to be object types, and have a common supertype.Alternatively unrelated object types could be abstracted away with ANYDATA.
There is no such functionality exposed / documented for records - although the signatures of several built-in packages suggest that a mechanism for passing ADTs as formal parameters does actually exist.

Hi every one. My iPhone does not connect wi-fi - the icon just stay static. Some helpful tip?

Hello everyone! my iPhone does not accept the wi-fi function. Trying to switch it on, the icon just stays static. Some helpful idea?

Settings App > General > Reset > Reset Network Settings. See if fixed. If not Restore iPhone with iTunes on computer. See if fixed. If not then the WiFi chip or its connection to logic board are faulty and there is no fix.

Pass TestStand error type directly into function parameter

Hi,
I am using TestStand 4 and Labwindows CVI 8.5.
I wonder if it is possible to pass Standard Step error type into CVI function parameters.
I think it would be more simple to pass one parameter instead of passing Error code, Error occurred state and Error message into function prototype.
I tried to use tsErrorDataType struct defined into tsutil.h into my function prototype.
In TestStand, I pass Step error type into function parameter but it does not work.
TestStand displays an error meaning parameters does not match function prototype.
Thank you for your help.

Hi Tartempion,
In order to pass the TestStand Error Container as one parameter to a function in a CVI DLL, you must use a struct that is typedef'ed and create an .fp file that is included as a type library for the DLL. When you create a .fp file to add to a DLL, the DLL will not build unless all structs/enums are typedef'ed. Thus, I wouldn't advise using the tsutil.h because you would have to go through and typedef every single struct and enum in the header file.
Instead, you can simply create a typedef'ed struct in your projects header file and create an .fp file with the struct specified as a data type. Then in TestStand, when you call the function you would need to ensure that the parameter is of Category "C Struct", and type "Error". The attached zip file contains a CVI 8.5 project that demonstrates this along with a TestStand 4.0 sequence file that demonstrates how to pass the parameter to the function by reference. In case you run into trouble creating the .fp file please refer to the following KnowledgeBase. The instructions are for enums but easily correspond to structs as well:
TestStand and LabWindows/CVI Enumeration Data Types
Hope this helps!
Manooch H.
National Instruments
Attachments:
PassTSError.zip ‏19 KB

Stage.addChild in static function?

In my document class (called "Level") I have a function:
public function doSomething():void {
     stage.addChild(some_mc);
In another class I'm trying to call this function with:
Level.doSomething();
but I get this error:
1061: Call to a possibly undefined method doSomething through a reference with static type Class.
if I make the function static I get this error:
1120: Access of undefined property stage.
I'm not sure what to do here. Some help would be appreciated. Thanks.

Hello,
@tlhood
This is how you could do that:
package
     import flash.display.MovieClip;
     public class Level extends MovieClip
          public static function doSomething():void
               instance.stage.addChild(instance.some_mc);
          public function Level()
               Level.instance = this;
          // instance is class variable
          private static var instance:Level = null;
          // stage/some_mc are instance variables
          private var some_mc:MovieClip = null;
Level.doSometing();
but most probably you would rather use singleton like implementation instead of static access in case you've e.g. single Level object in game:
http://www.squidoo.com/flash-tutorials_as3-singleton-design-pattern
so you would call:
Level.getInstance().doSomething();
or:
// somewhere in code
var level:Level = Level.getInstance();
// sometimes later in some other part of code
level.doSomething();
regards,
Peter

Is Static Function faster than non-static function

Hi,
I am wondering the performances issues of static Vs non-static function.
To prevent object creation, I wrote some static function in my class but I wonder if it really did faster.
any pointers in this direction will be helpful
Jacinle

to mattbunch
I still haven't pinpointed exactly the system
bottleneck
but I do think finding a better approach at the
earliest time is betterActually, the generally accepted best practice is to start with good algorithms and data structures, write the code, test the code, profile the code, and then do this kind of nickel and dime optimization after specific bottlenecks have been pinpointed. You absolultely should not make a static/non-static decision based on performance considerations. In fact, the idea that non-static is slower due to object creation is rather muddy thinking. You'd either already have the object and invoke its non-static method, or you'd invoke a static method. In the static case, your design would probably be different anyway, so you can't predict whether time saved by not creating an object would be lost by executing other code paths.
The case in which you count object creation time is if you're creating an object just to call this one method on it and get that method's result, and then not using the object anymore. In that case, the method should be static--not for performance reasons, but rather because the way you are using it suggests that the appropriate design is for it to be static.
>
so many decision to be made in designing software
I wonder if there is any practise I can follow
See "Thinking in Java" by Bruce Eckel, and "Practical Programming in Java" by Peter Haggar

Static function parameter help

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