Call a function from another software

hello,
Iam working on a program where i have to invoke a function from another software, is there any way i can do that? someone told me that i can use RMI to invoke the function but it seems to me like RMI is mainly for networked and distributed systems. any suggestions? i have an idea in my mind, if the software is programmed using c/c++ i can use the native coding to access the functions, well this is only a blind shot, not sure about it.
asrar

Hey asrar,
It is possible to call external programs from within the JVM. You need to do the following:
Process p = java.lang.Runtime.getInstance().exec("some.exe");
You can then do the following:
p.waitFor();
This will block until the process returns.
The Process class gives you access to 3 streams.
p.getInputStream(); returns a stream that the process sends to stdout.
p.getErrorStream(); returns a stream that the process sends to stderr.
p.getOutputStream(); returns a stream that allows you to send data to the process.
That is basically all you get.
regards,
Dr_N35S

Similar Messages

Calling a Function from another Function within CFC

Hi all,
I have many functions in my CFC that do various things, but
one query is a query that selects absolutely every record from a
table.
The thing is, I need to do a query like this in another
function to obtain only a recordcount of the same table used in
both separate functions. Instead of writing the query out again,
how can I utilise the function already written?
My question is, how can I invoke and use the results of a
query in one cffunction for another cffunction in the same CFC
component?
An example may look like the code attached...
Many thanks for your patience and help!
Mikey.

quote:
Originally posted by:
Dan Bracuk
Generally, to call a function from within a cfc, you do
exactly what you do outside a cfc.
For your specific case, if your requirements permit it, you
might consider caching the big query for a couple of seconds. Then
you can continously call the function and not have to wait for it
to run and bring back the data each time.
Do you mean to say that within a CFC function I can execute
the same cfinvoke tags I use in normal CFM pages?
Mikey.

How do I call a function from another file?

In MainView.m I have one function -(void)goTell;
I want to be able to call the function from SecondView.m. How do I do this?
I have declared the function in the MainView.h and added #include MainView.h to SecondView.m, but it still doesn't work.
This code crashes my program (for some reason this board takes away my brackets... assume the code is written correctly):
[[MainView alloc] init];
MainView *myMainView;
[myMainView goTell];
By the way... goTell has nothing in it. It's just a blank function for testing purposes.
Ethan

BTW - Wrap your code like this in posts tags so it stay readable.
put code here
Your code needs to be:
MainView *myMainView = [[MainView alloc] init];
[MyMainView goTell];

Calling a function from another class - help!

I realize that this is probably a basic thing for people who have been working with JavaFX for a while, but it is eluding me, and I have been working on it for over a week.
I need to call a function that is in another class. Here's the deal. In EntryDisplayController.java, there are 2 possible passwords that can be accepted - one will give full access to the car, the second will limit functions on the car. So when a password is entered and verified as to which one it is, I need to call a function in MainDisplayController.java to set a variable that will let the system know which password is being used - full or restricted.
So in MainDisplayController.java I have this snippet to see
public class MainDisplayController implements Initializable, ControlledScreen {
 ScreensController myController;
 public static char restrict;
 * Initializes the controller class.
 @Override
 public void initialize(URL url, ResourceBundle rb) {
 // TODO
 public void setRestriction(){
 restrict = 0;
 restrictLabel.setText("RESTRICTED");
 public void clearRestriction(){
 restrict = 1;
 restrictLabel.setText("");
And in EntryScreenDisplay.java I have this snippet:
public class EntryDisplayController implements Initializable, ControlledScreen {
 @FXML
 private Label passwordLabel ;
 static String password = new String();
 static String pwd = new String("");
 ScreensController myController;
 private MainDisplayController controller2;
 * Initializes the controller class.
 @Override
 public void initialize(URL url, ResourceBundle rb) {
 setPW(pwd); // TODO
 @FXML
 private void goToMainDisplay(ActionEvent event){
 if(password.equals ("123456")){
 controller2.clearRestriction();
 myController.setScreen(ScreensFramework.MainDisplayID);
 pwd = "";
 password = "";
 setPW(pwd);
 else if(password.equals ("123457")){
 controller2.setRestriction();
 myController.setScreen(ScreensFramework.MainDisplayID);
 pwd = "";
 password = "";
 setPW(pwd);
 else{
 password = "";
 pwd = "";
 setPW(pwd);
When I enter the restricted (or full) password, I get a long list of errors, ending with
Caused by: java.lang.NullPointerException
at velocesdisplay.EntryDisplayController.goToMainDisplay(EntryDisplayController.java:60)
Line 60 is where "controller2.setRestriction(); is.
As always, thanks for any help.
Kind regards,
David

You never set the controller2 variable to anything, which is why you get a null pointer exception when you try to reference it.
public static variables (and even singletons) are rarely a good idea as they introduce global state (sometimes they can be, but usually not).
If a static recorder like this can only have a binary value, use a boolean, if it can have multiple values, use an enum.
Some of the data sharing solutions in dependency injection - Passing Parameters JavaFX FXML - Stack Overflow might be more appropriate.
I also created a small framework for roll based solutions in JavaFX which perhaps might be useful:
http://stackoverflow.com/questions/19666982/is-there-a-way-to-implement-a-property-like-rendered-on-javafx
https://gist.github.com/jewelsea/7229260
It was just something I hacked together, so it's not a fully polished solution and you probably don't need something quite so complex.
What you need is a model class shared between the components of your application. Dependency injection frameworks such as afterburner.fx can help achieve this in a fairly simple to use way.
If you don't want to go with a dependency injection framework, then you could use either a static singleton model class for your settings or pass the model class using the mechanism in defined in the passing parameters link I provided. For a model class example, see the ClickCounter class from this example. That example doesn't use FXML, but to put it together with the passing parameters solution, for your restriction model, you would have something like the following:
 private class Restricted {
 private final ReadOnlyBooleanWrapper restricted;
 public Restricted(boolen isRestricted) {
 restricted = new ReadOnlyBooleanWrapper(isRestricted);
 public boolean isRestricted() {
 return restricted.get();
 public ReadOnlyBooleanProperty restrictedProperty() {
 return restricted.getReadOnlyProperty();
Then in your EntryDisplayController you have:
@FXML
public void goToMainDisplay(ActionEvent event) {
 // determine the restriction model as per your original code...
 RestictionModel restrictionModel = new RestrictionModel(<appropriate value>);
FXMLLoader loader = new FXMLLoader(
getClass().getResource(
 "mainDisplay.fxml"
Stage stage = new Stage(StageStyle.DECORATED);
stage.setScene(
 new Scene(
 (Pane) loader.load()
MainDisplayController controller =
 loader.<MainDisplayController>getController();
controller.initRestrictionModel(restrictionModel);
stage.show();
class MainDisplayController() {
@FXML private RestrictionModel restrictionModel;
@FXML private RestrictLabel restrictLabel;
public void initialize() {}
// naming convention (if the restriction model should only be set once per controller, call the method init, otherwise call it set).
public void initRestrictionModel(RestrictionModel restrictionModel) {
 this.restrictionModel = restrictionModel;
 // take some action based on the new restriction model, for example
 restrictLabel.textProperty.bind(
 restrictionModel.restrictedProperty().asString()
If you have a centralized controller for your navigation and instantiation of your FXML (like in this small FXML navigation framework), then you can handle the setting of restrictions on new screens centrally within the framework at the point where it loads up FXML or navigates to a screen (it seems like you might already have something like this with your ScreensController class).
If you do this kind of stuff a lot, then you would probably benefit from a move to a framework like afterburner. If it is just a few times within your application, then perhaps something like the above outline will give you enough guidance to implement a custom solution.

How do i call a Function from another Function ?

When i press a button, i want a series of functions to execute one after another (they contain tweens, but its irrelevant), each of them waiting for the previous to be completed. I want to put the series of functions inside one function, so i can call just this function to execute all the others. The animations are working fine, but i dont know how call Functions from within another function. Also it would be necessary each function to wait until the previous has completed, to execute. Here is a clear example of what i need to do:
boton.onPress = animate ;
Function animate () {
     animation1 (onComplete: animation2);
     animation2 (onComplete: animation3);
     animation3 ;
Function animation1 () { Tween 1};
Function animation2 () { Tween 2};
Function animation3 () { Tween 3};
any suggestions ?

I'd do something like this:
boton.onPress = animation1 ;
Function animation1 () {
     var Tween1 = new Tween();
    Tween1.onComplete = animation2;
Function animation2 () {
     var Tween2 = new Tween();
     Tween2.onComplete = animation3;
Function animation3 () {
     var Tween3 = new Tween();

Problems calling a function from another function

Hello all.
I am trying to create a function that will loop a few other function.
Basically the main function is this
                    private function publish(event:MouseEvent):void
                        if (doPublish.label == 'Publish')
                            // create a new NetStream object for video publishing
                            nsPublish = new NetStream(nc);
                            nsPublish.addEventListener(NetStatusEvent.NET_STATUS, nsPublishOnStatus);
                            // set the buffer time to zero since it is chat
                            nsPublish.bufferTime = 0;
                            // publish the stream by name
                            nsPublish.publish(publishName.text);
                            // add custom metadata to the stream
                            var metaData:Object = new Object();
                            metaData["description"] = "Chat using VideoChat example."
                            nsPublish.send("@setDataFrame", "onMetaData", metaData);
                            // attach the camera and microphone to the server
                            nsPublish.attachCamera(camera);
                            nsPublish.attachAudio(microphone);
                            doPublish.label = 'Stop';
                        else
                            // here we are shutting down the connection to the server
                            nsPublish.attachCamera(null);
                            nsPublish.attachAudio(null);
                            nsPublish.publish("null");
                            nsPublish.close();
                            doPublish.label = 'Publish';
I am then trying to call that function like this
            protected function startloop():void {
                publish(event);
But i get the error Access of undefined property event.
Any ideas on how i can call this function ? I need to call it as part of a loop against a timer..
Thanks in advance

Need more info. Are you using a ViewStack or other navigator container, and trying to access a view that has not been displayed yet, due to deferred instantiation?
If this post answers your question or helps, please mark it as such.
Greg Lafrance - Flex 2 and 3 ACE certified
www.ChikaraDev.com
Flex Training and Support Services

How to call a function in another software?

I want to call a function in Maple.How can I do that?

Xpost: http://forum.java.sun.com/thread.jsp?forum=4&thread=460289

How to call a servlet from another servlet

hi everybody,
i have a problem, i have to call one servlet from another one.
Everything works on my pc, but when i install the application on the customer's server i got an error about an Uknown URL followed by the name of the machine.
Wjat i do is the folloqing :
String urlString = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+"/"+servletName;
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
the variable servletName is the name of the servlet i have to call.
Is there another way to call the servlet ?
All the servlet are installed in the same server.
Any suggestion ?
Cheers.
Stefano

Sweep is correct about requestDispatcher being another approach for inter-servlet delegation; the only issue that i recall with this approach is that it defaults the method of the destination servlet to the one it was called from...for example, calling servlet2 from within servlet1.post() resulted in the dispatcher attempting to utilize servlet2.post() - i believe that i searched for a parameterize solution to no avail :( (ended up handling the request by placing a "fake" doPost() in servlet2 that simply called servlet2.doGet())
however, if your application is functioning correctly on your pc/webserver then the problem may be external to servlet communication (e.g. client webserver's ports not configured or blocked, missing runtime classes, etc.)
my suggestion would be to set aside the programmatic concerns for the moment - what is the response if you open a browser on a client's machine and access the URL in question (i.e. http://clientserver:port/stefanoServlet)? If it will not respond to access in this manner then it certainly won't when your application calls for it.
It's possible that there is a coding error but, given the info supplied, i'd start examining the environment, first. Let us know if you have any luck with the test i recommended or not (please provide abundant detail). Or, if you've found the solution then you may want to post back with a quick blub so the next person knows how to escape the trap.
D

Can I call a function from a dll in LabVIEW that returns:double*string and int.?

I have a function from a dll that return a double* string and an integer. How can I call this function from LabVIEW? There is a possibility to work in LabVIEW with a double* string?

pcbv wrote:
> Hello all, The header of the function is:
>
> "HRESULT WRAPIEnumerateDevices(WRAPI_NDIS_DEVICE **ppDeviceList, long *plItems);"
>
> where WRAPI_NDIS_DEVICE have this form:
>
> typedef struct WRAPI_NDIS_DEVICE { 
> WCHAR *pDeviceName; 
> WCHAR *pDeviceDescription; }
> WRAPI_NDIS_DEVICE; 
>
> The function is from WRAPI.dll, used for communication with wireless card.
> For my application I need to call in LabVIEW this function.
Two difficulties I can see with this.
First the application seems to allocate the array of references
internally and return a pointer to that array. In that case there must
be another function which then deallocates that array again.
Then you would need to setup the function call to have a pointer to an
int32 number for the deviceList parameter and another pointer to int32
one for the plItems parameter.
Then create another function in your DLL similar to this:
HRESULT WRAPIEnumExtractDevice(WRAPI_NDIS_DEVICE *lpDeviceList, long i,
CHAR lpszDeviceName, LONG lenDeviceName,
CHAR lpszDeviceDesc, LONG lenDeviceDesc)
if (!lpDeviceList)
return ERROR_INV_PARAMETER;
if (lpDeviceList[i].pDeviceName)
WideCharToMultiByte(CP_ACP, 0,
pDeviceList[i].pDeviceName, -1,
lpszDeviceName, lenDeviceName,
NULL, NULL);
if (lpDeviceList[i].pDeviceName)
WideCharToMultiByte(CP_ACP, 0,
pDeviceList[i].pDeviceDescription, -1,
lpszDeviceDesc, lenDeviceDesc,
NULL, NULL);
return NO_ERROR;
Pass the int32 you got from the first parameter of the previous call as
a simple int32 passed by value to this function (and make sure you don't
call this function with a higher index than (plItems - 1) returned from
the first function.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Regarding calling 1 report from another

Hello Friends,
   Can u plz tell me how to call one report from another report.
Regards,
Drashana

hi,
Use SUBMIT program statement
SUBMIT ZFIR001
chk this.
*Code used to populate 'select-options' & execute report
DATA: seltab type table of rsparams,
      seltab_wa like line of seltab.
seltab_wa-selname = 'PNPPERNR'.
seltab_wa-sign    = 'I'.
seltab_wa-option = 'EQ'.
load each personnel number accessed from the structure into
parameters to be used in the report
loop at pnppernr.
    seltab_wa-low = pnppernr-low.
    append seltab_wa to seltab.
endloop.
SUBMIT zreport with selection-table seltab
                                via selection-screen.
*Code used to populate 'parameters' & execute report
SUBMIT zreport with p_param1 = 'value'
                with p_param2 = 'value'.
Other additions for SUBMIT
*Submit report and return to current program afterwards
SUBMIT zreport AND RETURN.
*Submit report via its own selection screen
SUBMIT zreport VIA SELECTION-SCREEN.
*Submit report using selection screen variant
SUBMIT zreport USING SELECTION-SET 'VARIANT1'.
*Submit report but export resultant list to memory, rather than
*it being displayed on screen
SUBMIT zreport EXPORTING LIST TO MEMORY.
Once report has finished and control has returned to calling
program, use function modules LIST_FROM_MEMORY, WRITE_LIST and
DISPLAY_LIST to retrieve and display report.
\[removed by moderator\]
rEGARDS
Edited by: Jan Stallkamp on Jul 29, 2008 5:25 PM

VPD: Problems calling a function on another schema

Here's the setup:
I've create a schema called "AllYourBase". It contains all of my tables, views, functions, procs, etc.
These tables are protected by a DBMS_RLS policy. The policy uses a function to define its predicate which looks like this:
create or replace function tous_filter(schemaName varchar2, tableName varchar2)
return varchar2 is
begin
return 'account = sys_context(''USERENV'', ''CLIENT_IDENTIFIER'')';
end;
All of the tables have an account column for this to work. So far, this is a pretty basic VPD setup.
I have other db users that login and view data in the "AllYourBase" schema.
So when "ArbyLong" logs in, I set sys_context('USERENV', 'CLIENT_IDENTIFIER') to "ArbyLong", and when he runs a query, he gets back his rows.
Now, "AllYourBase" has several functions. Here's a very contrived, simplified example of one (but it illustrates the issue I'm running into just fine):
create or replace function getUserID
return integer is retval integer;
begin
select user_id into retval from users;
return (retval);
end;
When "ArbyLong" runs the equivalent query (select user_id from users), he gets back the one row where the account column is equal to "ArbyLong", as expected.
But this getUserID function lives in the "AllYourBase" schema. And here's the catch: I've made "AllYourBase" exempt from the policies by running "grant exempt access policy to AllYourBase".
When "ArbyLong" runs the function getUserID, it runs in the "AllYourBase" schema and pulls ALL of the rows from the users table.
This particular function simply errors out (since it's only expecting one row), but other functions are returning data that the logged in user shouldn't see.
So even though there are policies in place, by calling a function on another schema who is exempt from the policies, a user is able to see all returned data and not just the rows they are normally limited to.
Ultimately my question is this: Is there a way to enforce VPD policies when a user calls a function that lives in another schema?
Doing my own research, the answers I've come up with are:
* Don't use "grant exempt policy"!
* Put the function directly into the users' schemas. So "ArbyLong" would have his own getUserID function that would look at the "AllYourBase" users table.
I'd rather not do either of these, so does anyone have any other ideas? If it turns out these are the only solutions, then I'll go with one of them.
Thanks!

Need more info. Are you using a ViewStack or other navigator container, and trying to access a view that has not been displayed yet, due to deferred instantiation?
If this post answers your question or helps, please mark it as such.
Greg Lafrance - Flex 2 and 3 ACE certified
www.ChikaraDev.com
Flex Training and Support Services

Call Java function from multithreaded VC++ application

Friends, I want to call Java function from two threads of a single VC++ application. I can call it from single thread but when I call it from another thread also, JNI_CreateJavaVM() replies with an error.
Please......help me

Your posting is ambiguous. My impression is that you have two threads, both trying to create a java VM?

Creaing Message interface from another software component imported object

Hi all,
Will it be possible to creaing Message interface from another software component imported object like i need to create idoc Abstract interface in one software component by using the imported object from other software component
regards,
Dhil

Hi,
In thise case your SC2 Software Component is dependent on SC1.
Go to the SLD, go to the software component SC2 and you will have an option Dependency and as shown in michal's blog make this SC2 dependent on SC1.
Next, reimport your Software Components SC1 and SC2 in your IR . The old objects will contnue to exists but still clear the SLD cache, and reimport the SC1 and SC2 from the SLD.
Now in SC2 you will see a new option called BASIS objects under which you can see the message interfaces of SC1.
Regards
Bhavesh

Calling java functions from c++

I want to start my program from visual c++ then, call java functions and then calling c++ function. How can i do this?

Yet another cross-poster: [Calling java functions from c++|http://www.java-forums.org/new-java/12597-calling-java-functions-c.html]

/How to call a function in another PowerShell script

Hi All,
I want to use dot-sourced method to call the function from other script,While calling Function.ps1 from the second script there is a Null value in the beginning,
How can we ignore this null value or there is a better approach of doing it without using Import-Module.
#=======Function.ps1============
function add($x,$y)
$z=$x+$y
Write-Host "The value is $Z"
add $a $b
#===========End==================
The second script which has been dot-source to call the function
#================Main script==========
. C:\Users\Anirban\Desktop\Tester.ps1 |Out-Null
add 1 2
#================================
Regards,
Anirban Singha

Dot Sourcing is adding the function ADD to console environment and the script is acting like a module vs a script with parameters.
The Add $a $b line should be removed. (Where are $a and $b defined?)
They are not defined hence, "The Value is " blank line
#=======Function.ps1============
function add($x,$y)
$z=$x+$y
Write-Host "The value is $Z"
add $a $b
Should be
#=======Function.ps1============
function add($x,$y)
$z=$x+$y
Write-Host "The value is $Z"
PS C:\Test> . c:\tester.ps1
Add 1 2
Add 3 4
The value is 3
The value is 7
However the add can work without dot sourcing the script file by parameterizing the script
#=======Function.ps1============
Param ($a,$b) # Parameters to the script
function add($x,$y)
$z=$x+$y
Write-Host "The value is $Z"
Add $a $b # body of script
PS C:\Test>
C:\Tester.ps1 1 2
C:\Tester.ps1 3 4
The value is 3
The value is 7

Call a function from another software

Similar Messages

Maybe you are looking for