Method reference of the currently executed method

Hello,
is there a way (i think using reflection) to have a reference to a Method object of the currently executed method?
class A {
     void foo() {
          java.lang.reflect.Method m = ???     // would be a reference to the foo() method
     void foo(int i) {
          java.lang.reflect.Method m = ???     // would be a reference to the foo(int i) method
}Thanks in advance for any answer

There is no such feature. I can't think of a single reason why you'd want it either.

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How to get the current executing file/itself absolute directory?

hellooo,
          gentlemen/lady, how to get the current executing file/itself absolute directory?
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          Hello,
          you can get the real path information of the JSP through the servlet context:
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Java returning the reference of the current class.

Hi,
I want to write a method in Java to return the reference of the current class in a static manner i.e, without instantiating the class. Please help as to how to go about it.
Thanks.

Come on, at least point out where the guy is wrong.
user563329 wrote:
I want to write a method in Java to return the reference of the current class in a static manner i.e, without instantiating the class.There is no concept of a "current class" but I guess you meant "the class where the code is defined that the current thread is running now".
However, that means that class (code) has been instantiated so your question makes no sense.
If you want the class of the "current running code" use Object#getClass().
You can reference a class without instantiating it but it will still be loaded. For example:
public class TestInit {
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class Init {
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Init
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Getting a reference to the current Transaction

In a session bean, I need to call enlistResource(XAResource), an instance method in interface javax.transaction.Transaction, in order to enlist my XAResource object with the current transaction (whether it's a bean-managed or container-managed transaction).
In order to accomplish this, my code therefore needs to be able to obtain a reference to the current transaction, or to the transaction manager (since I could then call TransactionManager's getTransaction() method to obtain the transaction).
Is there a way to do this in IPlanet? (I have found techniques that work for JBoss and BEA, but not IBM.)
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Try
InputStream is =
ThisClass.class.getClassLoader().getResourceAsStream(resourceName);
Note this will get a different classloader which uses
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Trap the currently executing line number?

Hi,
how can one get the number of the currently executing line of code?
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HSC

ok, with all your help I managed to get this:
            //----------------- stack trace for debugging ------------------
            StackTraceElement[] e = new Throwable().getStackTrace();
            StackTraceElement stack[] = e;
            // stack[0] contains the method that created the exception.
            // stack[stack.length-1] contains the oldest method call.
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            //for (int i=0; i<stack.length; i++)
            int i=0;
            String filename = stack.getFileName();
if (filename == null) {
// The source filename is not available
String className = stack[i].getClassName();
String methodName = stack[i].getMethodName();
boolean isNativeMethod = stack[i].isNativeMethod();
int line = stack[i].getLineNumber();
System.out.println(
" >>className =" + className +
" >> methodName =" + methodName +
" >> line = " +line
// } //end-for
//----------------- stop stack trace for debugging ------------------
Still don't quite understand it all but considering I've been learning java on my own for about 3 weeks I figure I'm doing better than a lot of newbies. - I am frustrated as hell, but I don't give up!
thanks.
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Can you get the file name of the current executing TSQL script?

Can you get the file name of the current executing TSQL script? I wrote entries to a generic log file and would like to include the script name.

Okay, So What you can do is
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Hi all,
I am writing a little command line type application and I thought it would be neat to embed it's 'help file' into it's executable JAR file.
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(Is that possible?)
I've been looking around, I can find out how to work with a different JAR file but NOT how to examine the currently 'executing' one.
Many thanks,
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Excellent! Thank you very much. It's easy when you know how. This works a treat!:
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Find the full sql text of the currently executing query

Hi,
I wish to find the full sql text of currently executing sql.
Tried through v$sql and v sqltext_with_newlines but it doesn't give the full sql.
We do not want to enable trace to get sql query.
How to get this ?
Thanks.

Hye,
I got my answer on the below link,
Getting data from sql_fulltext
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Datetime of the current executing job

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Just want to know if there's way to know the date and time of the current running job get executed?
Thanks in advance.

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2. Create a main schedule which has the consolidated schedules that was created on #1.
3. Create Job.
4. Create Job Argument.
5. Enable the Job.
What we need now is when the job ran we want to know its start date (job_start). We tried to look if some views are providing this information. Like ALL_SCHEDULER_JOB_RUN_DETAILS, but this view only updated after the job is done executing. We also looked into ALL_SCHEDULER_RUNNING_JOBS but this does not provide the job start date.

Other ways for getting a reference to the current page [ID5, JS]

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I work around this by using activeSpread and getting the Y-coordinate of a frame or insertionPoint on the page I'm working on. When you set the ruler origin to spread, you can determine the left or right page by looking at the Y-coordinate. If it's higher than the page width (or spine position) you're on the right hand page. You could than use if...then to assign 0 or 1 a to a variable. Finally, you can get the ID of that page: app.activeSpread.pages.item(variable).id.
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Getting the absolute path of the current executing file

I have a file which will be placed in window and linux environment. It is not good to change the source code in that way:
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So I would like to ask how to get the absolute path based on that executing file?
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Here is a very small program you can compile and run if you wish to see the list of System Properties available:
public class ShowProperties {
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Hi,
We have some users who have submitted some SQL statements which have been running for a very long time.
Please let me know how to find out the SQL which is being currently being executed and also is it possible to find an estimated time of completion for the statement.
Regards,
VN

You've posted enough to know you need to provide your 4 digit Oracle version.
>
We have some users who have submitted some SQL statements which have been running for a very long time.
Please let me know how to find out the SQL which is being currently being executed and also is it possible to find an estimated time of completion for the statement.
>
You can query V$SESSION_LONGOPS. See my reply in this recent thread
Re: SQL query to see what the db/schema is doing

You can not dereference (- ) a generic reference in the current statement

Hi,
I get the message pls see subject. What is wrong ? Pls help..
I have copied this code at
https://www.sdn.sap.com/irj/scn/wiki?path=/pages/viewpage.action&pageid=72220689
*& Report ZHAKAN3
REPORT ZHAKAN3.
* TYPE-POOLS *
TYPE-POOLS: slis.
DATA: i_fieldcat TYPE slis_t_fieldcat_alv,
i_index TYPE STANDARD TABLE OF i WITH HEADER LINE,
w_field TYPE slis_fieldcat_alv,
p_table LIKE dd02l-tabname,
dy_table TYPE REF TO data,
dy_tab TYPE REF TO data,
dy_line TYPE REF TO data.
* FIELD-SYMBOLS *
FIELD-SYMBOLS: <dyn_table> TYPE STANDARD TABLE,
<dyn_wa> TYPE ANY,
<dyn_field> TYPE ANY,
<dyn_tab_temp> TYPE STANDARD TABLE.
* SELECTION SCREEN *
PARAMETERS: tabname(30) TYPE c,
lines(5) TYPE n.
* START-OF-SELECTION *
START-OF-SELECTION.
* Storing table name
p_table = tabname.
* Create internal table dynamically with the stucture of table name
* entered in the selection screen
CREATE DATA dy_table TYPE STANDARD TABLE OF (p_table).
ASSIGN dy_table->* TO <dyn_table>.
IF sy-subrc <> 0.
MESSAGE i000(z_zzz_ca_messages) WITH ' No table found'.
LEAVE TO LIST-PROCESSING.
ENDIF.
* Create workarea for the table
CREATE DATA dy_line LIKE LINE OF <dyn_table>.
ASSIGN dy_line->* TO <dyn_wa>.
* Create another temp. table
CREATE DATA dy_tab TYPE STANDARD TABLE OF (p_table).
ASSIGN dy_tab->* TO <dyn_tab_temp>.
SORT i_fieldcat BY col_pos.
* Select data from table
SELECT * FROM (p_table)
INTO TABLE <dyn_table>
UP TO lines ROWS.
REFRESH <dyn_tab_temp>.
* Display report
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
i_callback_program = sy-repid
i_structure_name = p_table
i_callback_user_command = 'USER_COMMAND'
i_callback_pf_status_set = 'SET_PF_STATUS'
TABLES
t_outtab = <dyn_table>
EXCEPTIONS
program_error = 1
OTHERS = 2.
IF sy-subrc <> 0.
ENDIF.
*& Form SET_PF_STATUS
* Setting custom PF-Status
* -->RT_EXTAB Excluding table
FORM set_pf_status USING rt_extab TYPE slis_t_extab.
SET PF-STATUS 'Z_STANDARD'.
ENDFORM. "SET_PF_STATUS
*& Form user_command
* Handling custom function codes
* -->R_UCOMM Function code value
* -->RS_SELFIELD Info. of cursor position in ALV
FORM user_command USING r_ucomm LIKE sy-ucomm
rs_selfield TYPE slis_selfield.
* Local data declaration
DATA: li_tab TYPE REF TO data,
l_line TYPE REF TO data.
* Local field-symbols
FIELD-SYMBOLS:<l_tab> TYPE table,
<l_wa> TYPE ANY.
* Create table
CREATE DATA li_tab TYPE STANDARD TABLE OF (p_table).
ASSIGN li_tab->* TO <l_tab>.
* Create workarea
CREATE DATA l_line LIKE LINE OF <l_tab>.
ASSIGN l_line->* TO <l_wa>.
CASE r_ucomm.
* When a record is selected
WHEN '&IC1'.
* Read the selected record
READ TABLE <dyn_table> ASSIGNING <dyn_wa> INDEX
rs_selfield-tabindex.
IF sy-subrc = 0.
* Store the record in an internal table
APPEND <dyn_wa> TO <l_tab>.
* Fetch the field catalog info
CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
EXPORTING
i_program_name = 'Z_DEMO_PDF_JG'
i_structure_name = p_table
CHANGING
ct_fieldcat = i_fieldcat
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3.
IF sy-subrc = 0.
* Make all the fields input enabled except key fields
w_field-input = 'X'.
MODIFY i_fieldcat FROM w_field TRANSPORTING input
WHERE key IS INITIAL.
ENDIF.
* Display the record for editing purpose
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
i_callback_program = sy-repid
i_structure_name = p_table
it_fieldcat = i_fieldcat
i_screen_start_column = 10
i_screen_start_line = 15
i_screen_end_column = 200
i_screen_end_line = 20
TABLES
t_outtab = <l_tab>
EXCEPTIONS
program_error = 1
OTHERS = 2.
IF sy-subrc = 0.
* Read the modified data
READ TABLE <l_tab> INDEX 1 INTO <l_wa>.
* If the record is changed then track its index no.
* and populate it in an internal table for future
* action
IF sy-subrc = 0 AND <dyn_wa> <> <l_wa>.
<dyn_wa> = <l_wa>.
i_index = rs_selfield-tabindex.
APPEND i_index.
ENDIF.
ENDIF.
ENDIF.
* When save button is pressed
WHEN 'SAVE'.
* Sort the index table
SORT i_index.
* Delete all duplicate records
DELETE ADJACENT DUPLICATES FROM i_index.
LOOP AT i_index.
* Find out the changes in the internal table
* and populate these changes in another internal table
READ TABLE <dyn_table> ASSIGNING <dyn_wa> INDEX i_index.
IF sy-subrc = 0.
APPEND <dyn_wa> TO <dyn_tab_temp>.
ENDIF.
ENDLOOP.
* Lock the table
CALL FUNCTION 'ENQUEUE_E_TABLE'
EXPORTING
mode_rstable = 'E'
tabname = p_table
EXCEPTIONS
foreign_lock = 1
system_failure = 2
OTHERS = 3.
IF sy-subrc = 0.
* Modify the database table with these changes
MODIFY (p_table) FROM TABLE <dyn_tab_temp>.
REFRESH <dyn_tab_temp>.
* Unlock the table
CALL FUNCTION 'DEQUEUE_E_TABLE'
EXPORTING
mode_rstable = 'E'
tabname = p_table.
ENDIF.
ENDCASE.
rs_selfield-refresh = 'X'.
ENDFORM. "user_command

Hi,
The statement should be
li_tab->*
not
li_tab->\*
I think just a typing mistake
* TYPE-POOLS *
TYPE-POOLS: slis.
DATA: i_fieldcat TYPE slis_t_fieldcat_alv,
i_index TYPE STANDARD TABLE OF i WITH HEADER LINE,
w_field TYPE slis_fieldcat_alv,
p_table LIKE dd02l-tabname,
dy_table TYPE REF TO data,
dy_tab TYPE REF TO data,
dy_line TYPE REF TO data.
* FIELD-SYMBOLS *
FIELD-SYMBOLS: <dyn_table> TYPE STANDARD TABLE,
<dyn_wa> TYPE ANY,
<dyn_field> TYPE ANY,
<dyn_tab_temp> TYPE STANDARD TABLE.
* SELECTION SCREEN *
PARAMETERS: tabname(30) TYPE c,
lines(5) TYPE n.
* START-OF-SELECTION *
START-OF-SELECTION.
* Storing table name
p_table = tabname.
* Create internal table dynamically with the stucture of table name
* entered in the selection screen
CREATE DATA dy_table TYPE STANDARD TABLE OF (p_table).
ASSIGN dy_table->* TO <dyn_table>.
IF sy-subrc NE 0.
MESSAGE i000(z_zzz_ca_messages) WITH ' No table found'.
LEAVE TO LIST-PROCESSING.
ENDIF.
* Create workarea for the table
CREATE DATA dy_line LIKE LINE OF <dyn_table>.
ASSIGN dy_line->* TO <dyn_wa>.
* Create another temp. table
CREATE DATA dy_tab TYPE STANDARD TABLE OF (p_table).
ASSIGN dy_tab->* TO <dyn_tab_temp>.
SORT i_fieldcat BY col_pos.
* Select data from table
SELECT * FROM (p_table)
INTO TABLE <dyn_table>
UP TO lines ROWS.
REFRESH <dyn_tab_temp>.
* Display report
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
i_callback_program = sy-repid
i_structure_name = p_table
i_callback_user_command = 'USER_COMMAND'
i_callback_pf_status_set = 'SET_PF_STATUS'
TABLES
t_outtab = <dyn_table>
EXCEPTIONS
program_error = 1
OTHERS = 2.
IF sy-subrc NE 0.
ENDIF.
* Setting custom PF-Status
* \-->RT_EXTAB Excluding table
FORM set_pf_status USING rt_extab TYPE slis_t_extab.
SET PF-STATUS 'Z_STANDARD'.
ENDFORM. "SET_PF_STATUS
* Handling custom function codes
* \-->R_UCOMM Function code value
* \-->RS_SELFIELD Info. of cursor position in ALV
FORM user_command USING r_ucomm LIKE sy-ucomm
rs_selfield TYPE slis_selfield.
* Local data declaration
DATA: li_tab TYPE REF TO data,
l_line TYPE REF TO data.
* Local field-symbols
FIELD-SYMBOLS:<l_tab> TYPE table,
<l_wa> TYPE ANY.
* Create table
CREATE DATA li_tab TYPE STANDARD TABLE OF (p_table).
ASSIGN li_tab->* TO <l_tab>.
* Create workarea
CREATE DATA l_line LIKE LINE OF <l_tab>.
ASSIGN l_line->* TO <l_wa>.
CASE r_ucomm.
* When a record is selected
WHEN '&IC1'.
* Read the selected record
READ TABLE <dyn_table> ASSIGNING <dyn_wa> INDEX
rs_selfield-tabindex.
IF sy-subrc = 0.
* Store the record in an internal table
APPEND <dyn_wa> TO <l_tab>.
* Fetch the field catalog info
CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
EXPORTING
i_program_name = 'Z_DEMO_PDF_JG'
i_structure_name = p_table
CHANGING
ct_fieldcat = i_fieldcat
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3.
IF sy-subrc = 0.
* Make all the fields input enabled except key fields
w_field-input = 'X'.
MODIFY i_fieldcat FROM w_field TRANSPORTING input
WHERE key IS INITIAL.
ENDIF.
* Display the record for editing purpose
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
i_callback_program = sy-repid
i_structure_name = p_table
it_fieldcat = i_fieldcat
i_screen_start_column = 10
i_screen_start_line = 15
i_screen_end_column = 200
i_screen_end_line = 20
TABLES
t_outtab = <l_tab>
EXCEPTIONS
program_error = 1
OTHERS = 2.
IF sy-subrc = 0.
* Read the modified data
READ TABLE <l_tab> INDEX 1 INTO <l_wa>.
* If the record is changed then track its index no.
* and populate it in an internal table for future
* action
IF sy-subrc = 0 AND <dyn_wa> NE <l_wa>.
<dyn_wa> = <l_wa>.
i_index = rs_selfield-tabindex.
APPEND i_index.
ENDIF.
ENDIF.
ENDIF.
* When save button is pressed
WHEN 'SAVE'.
* Sort the index table
SORT i_index.
* Delete all duplicate records
DELETE ADJACENT DUPLICATES FROM i_index.
LOOP AT i_index.
* Find out the changes in the internal table
* and populate these changes in another internal table
READ TABLE <dyn_table> ASSIGNING <dyn_wa> INDEX i_index.
IF sy-subrc = 0.
APPEND <dyn_wa> TO <dyn_tab_temp>.
ENDIF.
ENDLOOP.
* Lock the table
CALL FUNCTION 'ENQUEUE_E_TABLE'
EXPORTING
mode_rstable = 'E'
tabname = p_table
EXCEPTIONS
foreign_lock = 1
system_failure = 2
OTHERS = 3.
IF sy-subrc = 0.
* Modify the database table with these changes
MODIFY (p_table) FROM TABLE <dyn_tab_temp>.
REFRESH <dyn_tab_temp>.
* Unlock the table
CALL FUNCTION 'DEQUEUE_E_TABLE'
EXPORTING
mode_rstable = 'E'
tabname = p_table.
ENDIF.
ENDCASE.
rs_selfield-refresh = 'X'.
ENDFORM. "user_command
Regards
Edited by: Rajvansh Ravi on Mar 2, 2009 9:52 AM

How do I get a reference to the SecurityServices instance in my web appl?

I would like to use the audit provider of weblogic to log audit event that I send from my servlet. For writing a auditevent I need a reference to the AuditService instance. How do I obtain that? IS there any static class through with I can get references to the security services?
Lakshmi

Pete,
The Thread class's public static Thread currentThread() method will return a reference to the Thread object that represents the thread of execution that is live when the method is invoked. More simply, it provides a reference to the currently executing thread.
So you could use this as a key in a hashtable to represent which thread has a lock on some entity:
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How to find icon position of currently executed VI on caller's block diagram

Dear forum,
I currently try to use a LabVIEV VI as a simple sequencer: Several (very slow) actions have to execute one after another. Each action is represented by a Sub-VI, some actions are executed several times. My task is to visualize the currently executed Sub-VI somehow.
My first intention (simply manipulate the icon of the currently running VI with "VI Icon.Get as Image Data" / "VI Icon.Set from Image Data" invoke nodes) failed, because this changes the icon of ALL instances of this VI; if you use the same VI several times, the icons of all these VI are changed (see here: http://forums.ni.com/t5/LabVIEW/How-to-change-animate-icon-of-currently-running-VI/m-p/3120754/highl...
My current approach is to use an image of the block diagram (with "VI: Block Diagram: Get Image Scaled" invoke method) within a picture control of the front panel and to work within this control. But for this I need to know the position of the icon of the currently executed VI. I know that I can evaluate Bounds and Position via the GObj properties, but how do I find the currently running VI (note that a VI may reside several times on the block diagram, so the name of the VI is not unique)? IMHO the simpliest way would be if a VI could find its icon on the caller's block diagram itself when executed...
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cpschnuffel
Solved!
Go to Solution.

Yamaeda wrote:
Run it in highlight mode, done.
Sure if you don't mind having functional checks taking hours instead of minutes...okay maybe that is exagerating for a simple VI like this, but it would increase cycle time. Honestly I think the best solution would be to use the helper VI that was mentiond before, which keeps track of what VI is running. You can of course use scripting to get the block diagram image, but there isn't a good way to know what exact VI is running using VI server. Here are a few discussions.
https://lavag.org/topic/16660-how-to-get-actual-vi-execution-state/
https://decibel.ni.com/content/thread/18687
Unofficial Forum Rules and Guidelines - Hooovahh - LabVIEW Overlord
If 10 out of 10 experts in any field say something is bad, you should probably take their opinion seriously.

Method reference of the currently executed method

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