How to call api functions
Hi
I have a problem in form6i.i wrote a c++ program calling forms bjects and changing properties .The code gets complied(let file name be some.cpp file).now how can i use this file .where should i use this file .please replay
from
Pradeep
gang lee (guest) wrote:
: sir:
: For some reasons,I want to call the windows api functions
: from developer/2000 2.1,I want to know how to do that?
: thanks for your help!
There are two ways to invoke windows api functions: First, and I
believe the simplest of the two is the Forms package ORA_FFI,
which stands for Foreign Function Interface. This allows you to
load the dll and call any function in that dll as long as its
arguments uses standard data type (e.g. int, floats, chars), but
it does not support complex datatype such as structures and
pointers to structures.
Thoe other alternative is writing your own C function in a dll
and calling the windows api from the user exit. This is more
flexible as it can call functions that pass complex data types.
Either approach will require time and tinkering to get it to
work. A good knowledge of C would be helpful.
null
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Hi
I have a problem in form6i.i wrote a c++ program calling forms bjects and changing properties .The code gets complied(let file name be filename.cpp file).now how can i use this file .where should i use this file .please replay
from
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Normally, first, you have create a context for Form, then load the form and do whatever you want.
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The oracle function:
create or replace FUNCTION getSecThreadCount(secId in NUMBER,avai in NUMBER)
RETURN SYS_REFCURSOR is cur SYS_REFCURSOR;
m_sql VARCHAR2(250);
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1. the calling code:
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Query query=manager.createNativeQuery("{call getSecThreadCount(?,?) }");
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Exception in thread "main" javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute query; nested exception is: javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute query
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2. the calling code:
@SqlResultSetMapping(name = "getSecThreadCount_Mapping")
@NamedNativeQuery(name = "getSecThreadCount",
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resultSetMapping = "getSecThreadCount_Mapping",
hints = {@QueryHint(name = "org.hibernate.callable", value = "true"),
@QueryHint(name = "org.hibernate.readOnly", value = "true")})
public Object getSectionThreadCount(int secId,int avai){
Query query=manager.createNamedQuery("getSecThreadCount");
query.setParameter("secId", secId);
query.setParameter("avai", avai);
return query.getSingleResult();
but i run into the exception:
Exception in thread "main" javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute query; nested exception is: javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute query
javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute query
Caused by: java.sql.SQLException: lost in index IN or OUT parameter:: 3
By the way, i have successfully called the function from hibernate. And i use oracle 11g, JBoss5 RC1.
Could anyone tell me how to call the function from EJB3?
Thanks.Here's a working model:
package.procedure: (created in example schema scott)
CREATE OR REPLACE package body data_pkg as
type c_refcursor is ref cursor;
-- function that return all emps of a certain dept
function getEmployees ( p_deptId in number
return c_refcursor
is
l_refcursor c_refcursor;
begin
open l_refcursor
for
select e.empno as emp_id
, e.ename as emp_name
, e.job as emp_job
, e.hiredate as emp_hiredate
from emp e
where e.DEPTNO = p_deptId;
return l_refcursor;
end getEmployees;
end data_pkg;
/entity class:
package net.app.entity;
import java.io.Serializable;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedNativeQuery;
import javax.persistence.QueryHint;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
@SuppressWarnings("serial")
@Entity
@Table (name="emp")
@SequenceGenerator(name = "EmployeeSequence", sequenceName = "emp_seq")
@NamedNativeQuery( name = "getEmpsByDeptId"
, query = "{ ? = call data_pkg.getEmployees(?)}"
, resultClass = Employee.class
, hints = { @QueryHint(name = "org.hibernate.callable", value = "true")
, @QueryHint(name = "org.hibernate.readOnly", value = "true")
public class Employee implements Serializable
@Id
@Column(name="emp_id")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "EmployeeSequence")
private int id;
@Column(name="emp_name")
private String name;
@Column(name="emp_job")
private String job;
@Column(name="emp_hiredate")
private Date hiredate;
// constructor
public Employee (){}
// getters and setters
public int getId()
return id;
etc...session bean:
package net.app.entity;
import java.util.ArrayList;
import java.util.List;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import net.app.entity.Employee;
import net.app.iface.ScottAdmin;
@Stateless
public class ScottAdminImpl implements ScottAdmin
@PersistenceContext
private EntityManager entityManager;
@SuppressWarnings("unchecked")
public List<Employee> getEmployeesByDeptId(int deptId)
ArrayList<Employee> empList;
try
Query query = entityManager.createNamedQuery("getEmpsByDeptId");
query.setParameter(1, deptId);
empList = (ArrayList<Employee>) query.getResultList();
return empList;
catch (Exception e)
e.printStackTrace(System.out);
return null;
}client:
package net.app.client;
import java.util.List;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import net.app.entity.Employee;
import net.app.iface.ScottAdmin;
public class ScottClient
public static void main(String[] args)
try
// create local interface
InitialContext ctx = new InitialContext();
ScottAdmin adminInterface = (ScottAdmin) ctx.lookup("ScottAdminImpl/remote");
// select employees by deptno
int deptno = 20;
List<Employee> empList = adminInterface.getEmployeesByDeptId(deptno);
// output
System.out.println("Listing employees:");
for (Employee emp : empList)
System.out.println(emp.getId() + ": " + emp.getName() + ", " + emp.getJob() + ", " + emp.getHiredate());
catch (NamingException e)
e.printStackTrace(System.out);
}Basically you just ignore the refcursor outbound parameter.
This is a stored function, have yet to try outbound refcursor parameters in stored procedures...
Edited by: _Locutus on Apr 2, 2009 2:37 PM -
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CALL FUNCTION func DESTINATION dest [EXPORTING p1 = a1 p2 = a2 ...]
[IMPORTING p1 = a1 p2 = a2 ...]
[CHANGING p1 = a1 p2 = a2 ...]
[TABLES t1 = itab1 t2 = itab2 ...]
[EXCEPTIONS [exc1 = n1 exc2 = n2 ...]
[system_failure = ns [MESSAGE smess]]
[communication_failure = nc [MESSAGE cmess]]
[OTHERS = n_others]].
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Hello Everyone,
Can anyone tell me solution that:
How to call java function in javascript?
Thanks,
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How to call a function having OBJECT type as Return type
Hi,
I've the following function returning OBJECT type.
Pease advice me how to call this function
CREATE OR REPLACE TYPE GET_EMP_OBJ is object
( emp_name varchar2(50) ,
mgr_id number,
dept_id number
CREATE OR REPLACE FUNCTION get_emp(P_emp_no NUMBER )
RETURN GET_EMP_OBJ IS
t_emp_info GET_EMP_OBJ ;
v_ename EMP.ename%TYPE;
v_mgr EMP.mgr%TYPE ;
v_deptno EMP.deptno%TYPE;
v_ename1 EMP.ename%TYPE;
v_mgr1 EMP.mgr%TYPE ;
v_deptno1 EMP.deptno%TYPE;
BEGIN
FOR rec IN ( SELECT ename , mgr , deptno
FROM emp )
LOOP
v_ename := rec.ename ;
v_ename1 := v_ename1||'|'||v_ename ;
v_mgr := rec.mgr ;
v_mgr1 := v_mgr1||'|'||v_mgr ;
v_deptno:= rec.deptno;
v_deptno1 := v_deptno1||'|'||v_deptno ;
END LOOP ;
t_emp_info := GET_EMP_OBJ (v_ename,v_mgr,v_deptno ) ;
RETURN t_emp_info ;
EXCEPTION WHEN OTHERS THEN
DBMS_OUTPUT.put_line ('Error'||SQLCODE||','||SQLERRM ) ;
END;The above function got created successfully.
And i'm confused how to call this functions. I tried like below but didn't work
DECLARE
t_emp_info_1 GET_EMP_OBJ ;
BEGIN
t_emp_info_1 := get_emp(7566) ;
for i in 1..t_emp_info_1.COUNT
LOOP
DBMS_OUTPUT.put_line ('Values are'||i.emp_name ) ;
END LOOP;
END;SQL> CREATE OR REPLACE TYPE GET_EMP_OBJ is object
2 ( emp_name varchar2(50) ,
3 mgr_id number,
4 dept_id number
5 );
6 /
Type created.
SQL> ed
Wrote file afiedt.buf
1 CREATE OR REPLACE FUNCTION get_emp(empno NUMBER )
2 RETURN GET_EMP_OBJ IS
3 t_emp_info GET_EMP_OBJ ;
4 BEGIN
5 begin
6 select get_emp_obj(ename, mgr, deptno) into t_emp_info
7 from emp
8 where empno = get_emp.empno;
9 exception
10 when no_data_found then
11 t_emp_info := new get_emp_obj(null,null,null);
12 end;
13 return t_emp_info;
14* END;
SQL> /
Function created.
SQL> set serverout on
SQL>
SQL> declare
2 t_emp_info GET_EMP_OBJ ;
3 BEGIN
4 t_emp_info := get_emp(7566);
5 DBMS_OUTPUT.put_line ('Values are: '||t_emp_info.emp_name||', '||t_emp_info.mgr_id||', '||t_emp_info.dept_id);
6 END;
7 /
Values are: JONES, 7839, 20
PL/SQL procedure successfully completed.
SQL> -
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Hi..
How to call a function after 45 minutes evry day..
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I heard of this website, gurgle something, that actually let's you put in words like "java" and "scheduling" and it will spit out other websites that mention these terms. Fascinating stuff, hopefully I'll find the time to test it someday soon..
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Hi!, I'd like to know how to call a function from an asp page. I've written:
set rs = server.createobject("Adodb.recordset")
rs.open "call dbo.sf_Obt_Des_Producto ('0000161')",Conn
if err.description <> "" then
response.write ("No se pudo! :(")
else
response.write ("rs: " & rs(0))
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rs.close
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Angie.You need to use the syntax "{call <procedure_name>}".
The {call } syntax tells the OLE DB provider that it needs to translate the call into whatever the database's procedure calling syntax is. This means that even though different databases have different syntax for calling stored procedures, your OLE DB code can be run against any of them without changing.
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Hi,
How to call javascript function for SAP button
control onclick event?
Thanks in advance.Hi Sundar,
u can call java script in design mode.
Add this code in ur design part inside body and call the function as
<sap:button id="a" onSelect="javascript:go();"
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function go(){
alert("hai");
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Hi,
Iam new to pagination concept. Iam using display tag to display rows in jsp by strtus.
I have a problem when calling the javascript function using ahref in attribute in display tag.
<bean:define name="form1" property="EditDetails.List" id="ListDisplay"/>
<display:table name="pageScope.ListDisplay" cellpadding="0" cellspacing="1" pagesize="10" partialList="false" size="listSize" requestURI="">
<display:column property="poNo" href='javascript:searchEditDetails("./submitOrder.do? actionID=getMISLoadEdit&poNumberSel=<%=((com.po.bean.EditDetails)poListDisplay).getNo()%>&statusIdSelected=<%=((com.po.bean.EditDetails)ListDisplay).getStatusId()%>")'
title="Number"/>
<display:column property="strDate"title="Date" />
<display:column property="orderValue"title="Order Value(INR)"/>
<display:column property="stringRequestedDeliveryDate"title="Suggested Delivery Date"/>
<display:column property="statusDescription" title="Status" />
</display:table>
The above code display the data in row format is working fine when I click the No It thow javascript error and its not redirecting to the other page.
When I try this with ordinary struts its working fine the code is:
<logic:iterate id="polist" name="Form1" property="EditDetails.List" indexId="i" type="com.bean.EditDetails">
<tr>
<td ><a href="javascript:searchEditDetails("./submitOrder.do?actionID=getMISLoadEdit&NumberSel=<%=((com.bean.EditDetails)polist).getNo()%>&statusIdSelected=<%=((com.bean.EditDetails)polist).getStatusId()%>")"><html:hidden name="polist" property="No" write="true" /></a> </td>
<td><html:hidden name="polist" property="strDate" write="true" /></td>
<td><html:hidden name="polist" property="orderValue" write="true" /></td>
<td><html:hidden name="polist" property="stringRequestedDeliveryDate" write="true" /> </td>
<td><html:hidden name="polist" property="statusDescription" write="true" /></td>
</tr>
</logic:iterate>
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