Method parameter names

I'm using jwsdp-2.0 and jdk1.4
my question is
How can i change method parameter names that generated on WSDL file ?
when I'm trying to use (-g) option with javac command i have the same result.

The parameter names aren't included in the bytecode.
Therefor it is impossible to get them.
Not with reflection, not with other tools.
I'm afraid, but you'll have to scan the source.

Similar Messages

Getting method parameter names

Hello everyone,
I need to get parameter names of class methods. I checked the API for java.lang.reflect.Method, I found that it gives the types but not the names.
The following should print parameter names but it displays nulls for parameter descriptors. Any idea why ?
import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.IntrospectionException;
import java.beans.MethodDescriptor;
public class pd
public static void main( String[] args ) throws IntrospectionException
BeanInfo info = Introspector.getBeanInfo( javax.swing.JLabel.class,javax.swing.JComponent.class );
System.out.println("MethodDescriptors:");
for ( MethodDescriptor md : info.getMethodDescriptors() )
System.out.println( md.getName() );
System.out.println("ParameterDescriptors:"+md.getParameterDescriptors());
}

Knowing the "true name" of the parameter gives one power over it?
I suppose one could want to create dynamically generated documentation on arbitrary compiled code, or create some user interface to analyze objects/classes at runtime and call methods directly on them through some generically generated input fields. Perhaps as some sort of learning tool.
In that case, it would be useful to know the parameter names when there's multiple, particularly of the same type. The names ideally would indicate their use... although you can't always assume that.
Not that I can offer much help if the reflection classes don't provide for it already.

J2SE - Get Method Parameter Names

Hello Gurus,
I am trying to make a method in Java showing current running method's parameter name, the result will be some kind like below (showed in arrows):
FUNCTION1()::BEGIN
-TIME: 12-Jun-2013 05:39
FUNCTION1()::PARAMETERS
-PARAM01: val01 <!-------
-PARAM02: val02 <!-------
-PARAM03: val03 <!-------
FUNCTION1()::ERROR
-PATH: FUNCTION1()«FUNCTION2()«MAIN()
-MSG : '/ by zero'
FUNCTION1()::END
So I want to retrieve the parameter names and values automatically and dynamically using the function. So far, after googling, information that I get is by using spring framework:
private ParameterNameDiscoverer parameterNameDiscoverer;
Method m = ... <!------ what should I put here?
String[] names = parameterNameDiscoverer.getParameterNames(m).
In my idea, when we call a function, e.g: public String function1(String str, int i) {} and we put the code inside, we will get the function's parameter names which are "str" and "i", also with their current values.
Any help?

Knowing the "true name" of the parameter gives one power over it?
I suppose one could want to create dynamically generated documentation on arbitrary compiled code, or create some user interface to analyze objects/classes at runtime and call methods directly on them through some generically generated input fields. Perhaps as some sort of learning tool.
In that case, it would be useful to know the parameter names when there's multiple, particularly of the same type. The names ideally would indicate their use... although you can't always assume that.
Not that I can offer much help if the reflection classes don't provide for it already.

How to retrieve the parameter names from a JSP page ? Urgent Please

Hello,
Can anybody tell me how to retrieve the parameter names from the JSP
page. (without using getParameterNames() method.)
The problem with the getParameterNames() method is I get the Jumbled output.
I need it very badly
With regards
Ananth R
email:[email protected]
[email protected]

Dear duffymo,
My primary intention is to convert the JSP form information into a XML file.
If I do not get the Parameter names in the correct order how can I maintain
tag order in XML file.
For ex: (JSP PAGE VIEW)
Name--
FirstName
MiddleName
LastName
Address--
Street1
Street2
City
Country
&so on
(XML File to be generated)
<Name>
<FirstName>Value</FirstName>
</Name>
<Address>
<street1>value</street1>
</Address>
& so on
If I use getParameterNames() to get all the parameter names(Which form the tag names in the XML file ) the Enumeration object it returns will not be in the same order as the text fields in JSP.From this I can not construct a meaningful XML file.
order means: Order of entry on the page, from top to bottom
That's it
Waiting for your responses

After creating a jar, input parameter names not good

Hi,
jdeveloper 11.1.1.3
project a->create a util_a.jar
project b->properties/libraries->import util_a.jar
When I'm in project b and try to use a method of a class , jdeveloper doesn't show me the name of the parameters I wrote when creating that library
for instance Example.hello(String name)
In project b, the help popup just show me hello(String)
It is a problem when generating the jar from jdeveloper, since other external jars (from the Internet) display the parameter names (and in those external jars there is neither javadoc files, nor source code, just classes)
Where can I configure the creation of a jar file containing the original names of the parameters and not p1, p2, etc)?
Thanks

Imagine in the jar:
public class Message{
public static void send(String text,String from, String to){...}
and now, in the other project you have
Message.send(String p1, String p2,String p3); (in help popup)

Nice parameter names generation in web-services.xml

Hi
My session bean has explicit parameter names such as:
public void createCustomer(String name, String address, String telephoneNumber);
But inside web-services.xml for his operation, 'servicegen' generates parameters
name 'string, string0, string1'. Composing the xml becomes a tedious job!
Is there a way to have this file generated automatically but with the original
parameter names?
Thanks for the help,
guy

Can source2wsdd be applied to an EJB implementation - the doc mentions only Java class-implemented web service - has this been
fixed or being fixed in the next wls 7 service pack.
http://edocs.bea.com/wls/docs70/webserv/assemble.html#1056639
Thanks.
Darma
Shridhar Mysore wrote:
In WLS 7.0.1 onwards, using "source2wsdd" ant task (quo vide http://e-docs.bea.com/wls/docs70/webserv/anttasks.html#1080421)
you would be able to preserve the parameter names.
For instance, if you do :
<source2wsdd
javaSource="MyService.java"
ddFile="web-services.xml"
typesInfo="temp_dir/WEB-INF/classes/types.xml"
serviceURI="/MyService" >
<classpath>
<pathelement path="temp_dir/WEB-INF/classes"/>
<pathelement path="${java.class.path}"/>
</classpath>
</source2wsdd>
Then, the signature of a method in the backend component,
public void testMethod( int a, float fval, String name ){
would get translated mapped inside web-services.xml as :
- <operation component="MyService" name="testMethod" method="testMethod">
- <params>
<param name="a" class-name="int" type="parms:int" style="in" xmlns:parms="http://www.w3.org/2001/XMLSchema"
location="body" />
<param name="fval" class-name="float" type="parms:float" style="in" xmlns:parms="http://www.w3.org/2001/XMLSchema"
location="body" />
<param name="name" class-name="java.lang.String" type="parms:string" style="in"
xmlns:parms="http://www.w3.org/2001/XMLSchema" location="body" />
</params>
</operation>
where you would see that the parameter names are being preserved.
Regards
Shridhar
"Guy Deffaux" <[email protected]> wrote:
Hi
My session bean has explicit parameter names such as:
public void createCustomer(String name, String address, String telephoneNumber);
But inside web-services.xml for his operation, 'servicegen' generates
parameters
name 'string, string0, string1'. Composing the xml becomes a tedious
job!
Is there a way to have this file generated automatically but with the
original
parameter names?
Thanks for the help,
guy

Constructor Method parameter problem

I write my class whit this constructor method.
public Immobile(int id, String complesso, String tipoed,double prezzo) {
this.id = id;
this.complesso = complesso;
this.tipoed =tipoed;
this.prezzo = prezzo;
in my app i want to create an object of Immobile class:
Immobile imm = new Immobile(1,"nuovo",null,2);
Always is ok
if I don't want to pass the String parameter I set it whit null.
But if I don't want to pass an integer like first parameter, or double like prezzo parameter, How can I do this?
I don't want to use Overloading of method because if the Immobile class have for example 30 parameter, i don't want to write 30 constructor method.
There is any possibility?

I think that my design is ok.Two competent developers and me disagree with you.Sign me in here. Every time I get code with methods with more than 4 parameters I shudder.
A class with 30 constructor parameters is probably a class with 30 fields and more often than not those class fields can be refactored in smaller classes, like ...
I think that made a class User whit parameter Name,
Surname, address, telefon, fax is ok
and i think that a user probably haven't a fax.
I think that one way can be to use all the parameter
like String, that accept null, next, casting orsome
conversion before insert in a database
What do you think about this?Surname, address, telephone and fax give you 30
variables? What are you doing, show a small piece of
relevant code....
class ContactInfo class for tel, fax, mail, pager.
class Adress for City, street, country, etc.
and so on.
I don't know if BiggDaddy 's sugestion comes in hand in any problem solution but I know that it can very easily come out of hand, I worked on a system where everything was passed down through 2 parameters, that where in fact 2 arrays of parameters.
The system was a mess, very hard to understand and to test, and bugs popped around in production time.
May the code be with you.

SIGNATURE (parameter names) MISMATCH

I wrote the procedure to pass a parameter to another procedure p_sel_crse_search
PROCEDURE p_enter_term
IS
BEGIN
---- HTP.p ('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">');
   HTP.p (
      '<FORM ACTION="/test/bzskfcls.p_sel_crse_search" METHOD="POST" onSubmit="return checkSubmit()">');
   HTP.p (
      '<INPUT TYPE="hidden" NAME="p_sel_crse_search" VALUE="p_sel_crse_search">');
   HTP.p (
      '<TABLE class="dataentrytable" summary="This layout table is used for term selection."width="50%"><CAPTION class="captiontext">Search by Term: </CAPTION>');
   HTP.p ('<TR>');
   HTP.p (
      '<TD class="dedefault"><LABEL for=term_input_id><SPAN class="fieldlabeltextinvisible">Term</SPAN></LABEL>');
   HTP.p ('<SELECT NAME="p_term" SIZE="1" ID="term_input_id">');
   HTP.p ('<OPTION VALUE="">None');
   HTP.p ('<OPTION VALUE="201410">Fall 2013');
   HTP.p ('<OPTION VALUE="201320">Spring 2013');
   HTP.p ('</SELECT>');
   HTP.p ('</TD>');
   HTP.p ('</TR>');
   HTP.p ('</TABLE>');
   HTP.p ('<BR>');
   HTP.p ('<BR>');
   HTP.p ('<INPUT TYPE="submit" VALUE="Submit">');
   HTP.p ('<INPUT TYPE="reset" VALUE="Reset">');
   HTP.p ('</FORM>');
END;
PROCEDURE p_sel_crse_search(p_term IN stvterm.stvterm_code%type)
   IS
      term_arr   OWA_UTIL.ident_arr;
   BEGIN
     htp.p('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">');
       ---term_arr (1) := 201320;
        term_arr (1) := p_term;
      -- OBS term_arr(1) := '201320';
      P_CrseSearch_Advanced(term_in => term_arr);
      --P_CrseSearch (term_in => term_arr);
   END p_sel_crse_search;
I am getting the following error
Failed to parse target procedure
bzskfcls.p_sel_crse_search: SIGNATURE (parameter names) MISMATCH
VARIABLES IN FORM NOT IN PROCEDURE: P_SEL_CRSE_SEARCH
NON-DEFAULT VARIABLES IN PROCEDURE NOT IN FORM:
DAD name: test
PROCEDURE : bzskfcls.p_sel_crse_search
URL        : http://dev-ssb-vip.bowdoin.edu:80/test/bzskfcls.p_sel_crse_search
PARAMETERS :
===========
P_SEL_CRSE_SEARCH:
   p_sel_crse_search
P_TERM:
   201320
ENVIRONMENT:
============
    PLSQL_GATEWAY=WebDb
    GATEWAY_IVERSION=2
    SERVER_SOFTWARE=Oracle-Application-Server-11g
    GATEWAY_INTERFACE=CGI/1.1
    SERVER_PORT=80
    SERVER_NAME=dev-ssb-vip.bowdoin.edu
    REQUEST_METHOD=POST
    QUERY_STRING=
    PATH_INFO=/bzskfcls.p_sel_crse_search
    SCRIPT_NAME=/test
    REMOTE_HOST=
    REMOTE_ADDR=139.140.238.250
    SERVER_PROTOCOL=HTTP/1.1
    REQUEST_PROTOCOL=HTTP
    REMOTE_USER=www2_user
    ORACLE_SSO_USER=
    OSSO_IDLE_TIMEOUT_EXCEEDED=
    OSSO_USER_GUID=
    HTTP_CONTENT_LENGTH=49
    HTTP_CONTENT_TYPE=application/x-www-form-urlencoded
    HTTP_USER_AGENT=Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/4.0; GTB7.4; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; InfoPath.3)
    HTTP_HOST=dev-ssb-vip-test.bowdoin.edu
    HTTP_ACCEPT=application/x-ms-application, image/jpeg, application/xaml+xml, image/gif, image/pjpeg, application/x-ms-xbap, */*
    HTTP_ACCEPT_ENCODING=gzip, deflate
    HTTP_ACCEPT_LANGUAGE=en-US
    HTTP_ACCEPT_CHARSET=
    HTTP_COOKIE=SESSID=MEJIRE44MTgyMDQy; __utma=253559834.1105023054.1363618289.1370889203.1370894368.70; __utmz=253559834.1370894368.70.30.utmcsr=google|utmccn=(organic)|utmcmd=organic|utmctr=bopwdoin%20college; IDMSESSID=6FCCE37AD1073BAE58A72D6471FB4ABE; sghe_magellan_username=Mzg1NzQ=; sghe_magellan_locale=en_US
    HTTP_IF_MODIFIED_SINCE=
    HTTP_REFERER=https://dev-ssb-vip-test.bowdoin.edu/test/bzskfcls.p_enter_term
    HTTP_SOAPACTION=
    HTTP_ORACLE_ECID=
    HTTP_ORACLE_CACHE_VERSION=
    HTTP_AUTHORIZATION=
    WEB_AUTHENT_PREFIX=
    DAD_NAME=test
    DOC_ACCESS_PATH=docs
    DOCUMENT_TABLE=wpg_document
    PATH_ALIAS=
    REQUEST_CHARSET=AL32UTF8
    REQUEST_IANA_CHARSET=UTF-8
    SCRIPT_PREFIX=
    HTTP_IF_MATCH=
    HTTP_CACHE_CONTROL=
    SOAP_BODY=
    HTTP_X_ORACLE_DEVICE_CLASS=
    HTTP_X_ORACLE_DEVICE_ORIENTATION=
    HTTP_X_ORACLE_DEVICE_MAXDOCSIZE=
    HTTP_X_ORACLE_DEVICE=
    HTTP_X_ORACLE_ORIG_ACCEPT=
    HTTP_X_ORACLE_ORIG_USER_AGENT=
    HTTP_X_ORACLE_USER_LOCALE=
    HTTP_X_ORACLE_USER_NAME=
    HTTP_X_ORACLE_USER_DISPLAYNAME=
    HTTP_X_ORACLE_USER_USERKIND=
    HTTP_X_ORACLE_USER_AUTHKIND=
    HTTP_X_ORACLE_USER_DEVICEID=
    HTTP_X_ORACLE_USER_LOCATION_ADDRESSLINE1=
    HTTP_X_ORACLE_USER_LOCATION_ADDRESSLINE2=
    HTTP_X_ORACLE_USER_LOCATION_ADDRESSLASTLINE=
    HTTP_X_ORACLE_USER_LOCATION_BLOCK=
    HTTP_X_ORACLE_USER_LOCATION_CITY=
    HTTP_X_ORACLE_USER_LOCATION_COMPANYNAME=
    HTTP_X_ORACLE_USER_LOCATION_COUNTY=
    HTTP_X_ORACLE_USER_LOCATION_STATE=
    HTTP_X_ORACLE_USER_LOCATION_POSTALCODE=
    HTTP_X_ORACLE_USER_LOCATION_POSTALCODEEXT=
    HTTP_X_ORACLE_USER_LOCATION_COUNTRY=
    HTTP_X_ORACLE_USER_LOCATION_TYPE=
    HTTP_X_ORACLE_USER_LOCATION_X=
    HTTP_X_ORACLE_USER_LOCATION_Y=
    HTTP_X_ORACLE_SERVICE_HOME_URL=
    HTTP_X_ORACLE_SERVICE_PARENT_URL=
    HTTP_X_ORACLE_HOME_URL=
    HTTP_X_ORACLE_MODULE_CALLBACK_URL=
    HTTP_X_ORACLE_MODULE_CALLBACK_LABEL=
    HTTP_X_ORACLE_CACHE_USER=
    HTTP_X_ORACLE_CACHE_SUBID=
    HTTP_X_ORACLE_CACHE_AUTH=
    HTTP_X_ORACLE_CACHE_DEVICE=
    HTTP_X_ORACLE_CACHE_LANG=
    HTTP_X_ORACLE_CACHE_ENCRYPT=
    HTTP_X_ORACLE_ASSERT_USER=

Check if the stvterm.stvterm_code%type is of type varchar2 or number? The parameter p_term value is 201320 which might be coming as varchar2 while the svtterm_code might be a number or vice versa and hence causing the mismatch.
Rgds
San

How can I get parameter name?

ODatabase odb("test", "scott", "tiger");
OParameterCollection params = odb.GetParameters();
-------> and next how can I get parameter name?
I hope get stored procedure parameter names and settiing parameter Add just like below.
Plz tell me how can I get parameter name?
I'm Korean, and my english is poor. sorry : )
// add a parameter named 'DEPTNO'
params.Add("DEPTNO", 20, OPARAMETER_INVAR, OTYPE_NUMBER);
// add a parameter named 'EMPCURSOR'
params.Add("EMPCURSOR", "", OPARAMETER_OUTVAR, OTYPE_CURSOR);
//Execute the SQL statement
odb.ExecuteSQL("BEGIN Employee.GetEmpData (:DEPTNO, :EMPCURSOR); END;");

ok, alright. I'm trying to write a program to easily test EJBs with a user giving input and directly seeing the results of function calls to the Bean. The user gives the JNDI name of the EJB, I instantiate the bean, give the user a list of function calls from the bean, and then he/she chooses the function they want to execute and give input of the parameters values they want. Everything is done remotely and at runtime, and the only real problem is that the user only sees "myFunc ( String )" and it would be confusing if there are several parameters of the same type.
Yes, I do realize there are other ways to test, I was developing this to try a new method that I thought could be beneficial to me.

Obtaining parameter names through Reflection

I'm writing a code generator that creates wsdl files and javascript proxies of java objects through reflection. I've heard that if the java class is compiled in debug mode, there is a way to obtain the parameter names to methods, but I can't figure out how to get them. I don't see anything in the reflection API that would allow that. Is there some other API I need to use to get those values? WSDL files that list parameters as "arg0, arg1, arg2" are not real helpful to users.

Let us take this source:
public class a {
public void doit(int argc,String argv[] ) { }
}Let us compile it with the -g option. Then let's do strings a.class:
(I[Ljava/lang/String;)V
<init>
Code
LineNumberTable
LocalVariableTable
SourceFile
[Ljava/lang/String;
a.java
argc
argv
doit
java/lang/Object
thisSo the argument names really appear to be in the class file, but not forcibly available through reflection, but maybe through examining the LineNumberTable and LocalVariableTable parts of the class file.

JDI Reading Parameter Names

I have used reflection to read information about a class, but it does not provide the parameters names of the method arguments. I have read that I need JDI. Does anyone know of a good tutorial or sample code that will read the parameter names of methods and of other public variables in the class file?
Thanks

I've seen others for some reason "needing" this kind of "requirement" too. And the answers being that the requirement is ill-conceived, which I agree with.

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.)

Descriptive parameter names in WSDL

I am following the 10.1.3.1 Developer Guide to use annotation in my EJB to create Web Service. I took a look of the WSDL file after I deployed to the Apps Server, and noticed that all my parameter names been replaced by generic names, e.g. String_1, String_2. I tried using @WebParam(name=”myVar”) to workaround, but was unsuccessful.
Another fact I noticed in the WSDL file is that my overloaded Java method now became “myMethod_0” and “myMethod_1”. Is there a way to have more descriptive parameters names in the WSDL?
Many Thanks in advance.

http://216.148.48.100/cgi-bin/dnewsweb?cmd=article&group=weblogic.developer.interest.webservices&item=3597
Shan wrote:
>
Hello,
I am developing a simple web service in WLS 8.1, similar to the webservice example
basic/javaclass. I am using command line ant tools for this purpose. When I deploy
the webserivice, I get the WSDL file with following :
<message name="createRequest">
<part xmlns:partns="http://www.w3.org/2001/XMLSchema" type="partns:string" name="string"
/>
<part xmlns:partns="http://www.w3.org/2001/XMLSchema" type="partns:dateTime"
name="date" />
<part xmlns:partns="http://www.w3.org/2001/XMLSchema" type="partns:string" name="string0"
/>
I would like to have the actual parameter names to be displayed instead of 'string',
'string0', etc...
I could do this after manually editing the web-services.xml file generated by
servicegen ant task. However, it is not possible to change parameters manually
every time the service is regenerated. Is there a solution to get the actual parameter
names in the WSDL without going through the manual step every time?
Thanks a lot!
-Shan

The %5BOut%5D gets Stuck to Parameter name in Additional Results

The in or out tag from a LV VI gets added to the parameter name
any method to remve it

%5B = [
[In]
[Out]

Invoking methods by name

Is it possible (and if so how) to invoke a method using a name stored in a variable?
private void thisMethod(){
is normally run by using the method name:
thisMethod();
or
this.thisMethod();
But if there are a number of methods (method1, method2, method3 say) and the choice of which method to use is derived from some source (in my case as a jsp request parameter), is there some way of saying "run the method whose name is stored in variable methodName"?
The alternative is of course to use a lot of if ... else if statements, but there are situations where even that does not help very much.
Clearly what I am asking for is some kind of late binding, which should not be too hard for any language which can implement run time polymorphism, but how?
Good ideas and information welcome.
David

If you know the class then you can use reflection to do the job. You can get the methods names using instance.getClass().getDeclaredMethods(...);
If the methods have the same interface but differ in implementation then you could create an interface, have a number of classes implement the interface, then scan the classpath for classes that implement the interface.
there's probably more
Dave

Method parameter names

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