Separating heavy duty business process from web application

I'm working with a web application that just runs in a Servlet container, Jetty actually. I'm wondering what the best way to separate resource intensive processes, such as a search indexing process, from the main web application. These resource intensive processes might run at scheduled times, or they might be triggered by the events in the web application. I assume the second thing might incur much more complications on the solutions. I have a lot of questions about this, but for now, I'd just like to have some folks point out the common solutions. Changing to a EE application server is NOT an option.

chadmichael wrote:
Couple of questions:
1) What's the benefit of going to another app if you're still on the same server? I'm not being coy, I'm just trying to get a feel for the pros and cons. You could always run something on a timer from within the web application. Is there a performance benefit from being in another JVM? Then run it on the same server. No need to run it on another server if a separate JVM will do it for you.
2) How would you communicate with the main app if you needed to receive events or something? RMI?You stated it was on a timer. There is no need to be on the same server to run things from a timer. If it needs to be event driven a simple way would be to set up a separate instance of Tomcat (or Jetty) on the same or different server. Refactor out what ever the offending code is into separate servlet and have your main app just send the events off to the other instance.
There are a lot of ways to go about this. They depend on what your needs are.

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Read this article in order to get an idea about Java Stored Procedures.
Oracle Developer JAVA STORED PROCEDURES
Simplify with Java Stored Procedures
By Kuassi Mensah
Use Java stored procedures to bridge SQL, XML, Java, and J2EE and Web Services.
Stored procedures allow a clean separation of persistence logic that runs in the database tier from business logic that runs in the middle tier. This separation reduces overall application complexity and increases reuse, security, performance, and scalability.
A major obstacle, however, for widespread adoption of stored procedures is the set of various proprietary, database-dependent implementation languages that different database vendors use. The use of Java-based stored procedures fixes this concern. Oracle has implemented ANSI standards that specify the ability to invoke static Java methods from SQL as procedures or functions. This implementation is called simply "Java stored procedures."
In this article, you will learn how Java stored procedures help simplify and increase the performance of your business logic and extend database functionality. I'll show how Oracle enables the use of Java stored procedures within the database. I'll also look at how Java stored procedures access data, and show how to create a basic Java stored procedure.
PL/SQL or Java
When you think of Oracle stored procedures, you probably think of PL/SQL. Oracle, however, has provided Java support in the database since Oracle8i, to offer an open and portable alternative to PL/SQL for stored procedures. I can hear the $64,000 question: "How do I choose between PL/SQL and Java? Should I forget all the things I've been told about PL/SQL and move on to the greener Java pastures?"
Both languages are suitable for database programming, and each has its strengths and weaknesses. In deciding which language to use, here's a general rule of thumb:
Use PL/SQL for database-centric logic that requires seamless integration with SQL and therefore complete access to database objects, types, and features.
Use Java as an open alternative to PL/SQL for database independence, but also for integrating and bridging the worlds of SQL, XML, J2EE, and Web services.
OracleJVM Lets You Run Java within the Database
Since Oracle8i, Release 1 (Oracle 8.1.5), Oracle has offered a tightly integrated Java virtual machine (JVM) that supports Oracle's database session architecture. Any database session may activate a virtually dedicated JVM during the first Java code invocation; subsequent users then benefit from this already Java-enabled session. In reality, all sessions share the same JVM code and staticsonly private states are kept and garbage collected in an individual session space, to provide Java sessions the same session isolation and data integrity capabilities as SQL operations. There is no need for a separate Java-enabled process for data integrity. This session-based architecture provides a small memory footprint and gives OracleJVM the same linear SMP scalability as the Oracle database.
Creating Java Stored Procedures
There are a few steps involved in turning a Java method into a Java stored procedure. These include loading the Java class into the database using the loadjava utility, and publishing the Java methods using a call specification (Call Spec) to map Java methods, parameter types, and return types to their SQL counterparts. The following section shows how to do this.
I'll use a simple Hello class, with one method, Hello.world(), that returns the string "Hello world":
public class Hello
public static String world ()
return "Hello world";
The Loadjava Utility
Loadjava is a utility for loading Java source files, Java class files, and Java resource files; verifying bytecodes; and deploying Java classes and JAR files into the database. It is invoked either from the command line or through the loadjava() method contained within the DBMS_JAVA class. To load our Hello.class example, type:
loadjava -user scott/tiger Hello.class
As of Oracle9i Release 2, loadjava allows you to automatically publish Java classes as stored procedures by creating the corresponding Call Specs for methods contained in the processed classes. Oracle provides Oracle9i JDeveloper for developing, testing, debugging, and deploying Java stored procedures.
The Resolver Spec
The JDK-based JVM looks for and resolves class references within the directories listed in the CLASSPATH. Because Oracle database classes live in the database schema, the OracleJVM uses a database resolver to look for and resolve class references through the schemas listed in the Resolver Spec. Unlike the CLASSPATH, which applies to all classes, the Resolver Spec is applied on a per-class basis. The default resolver looks for classes first in the schema in which the class is loaded and then for classes with public synonyms.
loadjava -resolve <myclass>
You may need to specify different resolvers, and you can force resolution to occur when you use loadjava, to determine at deployment time any problems that may occur later at runtime.
loadjava -resolve -resolver "((* SCOTT) (foo/bar/* OTHERS)
(* PUBLIC))"
Call Spec and Stored Procedures Invocation
To invoke a Java method from SQL (as well as from PL/SQL and JDBC), you must first publish the public static method through a Call Spec, which defines for SQL the arguments the method takes and the SQL types it returns.
In our example, we'll use SQL*Plus to connect to the database and define a top-level Call Spec for Hello.world():
SQL> connect scott/tiger
SQL> create or replace function helloworld return
VARCHAR2 as language java name 'Hello.world () return
java.lang.String';
Function created.
You can then invoke the Java stored procedure as shown below:
SQL> variable myString varchar2[20];
SQL> call helloworld() into :myString;
Call completed.
SQL> print myString;
MYSTRING
Hello world
Java stored procedures are callable, through their Call Spec, from SQL DML statements (INSERT, UPDATE, DELETE, SELECT, CALL, EXPLAIN PLAN, LOCK TABLE, and MERGE), PL/SQL blocks, subprograms, and packages, as well as database triggers. The beauty of Call Spec is that stored procedure implementations can change over time from PL/SQL to Java or vice versa, transparently to the requesters.
Call Spec abstracts the call interface from the implementation language (PL/SQL or Java) and therefore enables sharing business logic between legacy applications and newer Java/J2EE-based applications. At times, however, when invoking a database-resident Java class from a Java client, you may not want to go through the PL/SQL wrapper. In a future release, Oracle plans to provide a mechanism that will allow developers to bypass the Call Spec.
Advanced Data-Access Control
Java stored procedures can be used to control and restrict access to Oracle data by allowing users to manipulate the data only through stored procedures that execute under their invoker's privileges while denying access to the table itself. For example, you can disable updates during certain hours or give managers the ability to query salary data but not update it, or log all access and notify a security service.
Sharing Data Logic Between Legacy and J2EE Applications
Because legacy applications and J2EE applications both invoke stored procedures through the Call Spec, the same data logic can be shared between J2EE and non-J2EE worlds. Thanks to Call Spec, this data logic can be shared regardless of the implementation language used (whether PL/SQL or Java).
Autogeneration of Primary Keys for BMP Entity Beans
When using BMP for EJB entity beans, a bean instance can be uniquely identified by the auto-generated primary key associated with the newly inserted data as a return value for ejbCreate(). You can retrieve this value within ejbCreate() in one database operation by using a stored procedure that inserts the corresponding data and retrieves or computes the primary key. Alternatively, you could insert the data and retrieve the corresponding key (or ROWID) in one SQL statement, using the RETURN_GENERATED_KEYS feature in JDBC 3.0. However, the stored procedure approach is more portable across JDBC driver versions and databases.
You can implement this pattern with these three steps:
Create the Java stored procedure, defining a public static Java method insertAccount() within a public GenPK class. This method will insert data, compute a unique key (by passing out a sequence number), and return the computed key as primary key.
Define the Call Spec.
CREATE OR REPLACE PROCEDURE insertAccount(owner IN
varchar, bal IN number, newid OUT number)
AS LANGUAGE JAVA NAME 'GenPK.insertAccount(
java.lang.String [])';
Invoke the stored procedure within ejbCreate().
Public AccountPK ejbCreate(String ownerName, int balance) throws CreateException
try {
CallableStatement call = conn.prepareCall{
"{call insertAccount(?, ?, ?)}"};
return new AccountPK(accountID);
Custom Primary Key Finders for CMP Entity Beans
Finder methods are used for retrieving existing EJB entity bean instances. Primary key finders allow you to retrieve a uniquely identified EJB instance. For CMP entity beans, the EJB container automatically generates the primary key finder findByPrimaryKey() method, based on declarative description. In some situations, however, you might need more control; for example, you may need a specialized finder such as findByStoredProcKey(). In these situations, you can use Java stored procedures in conjunction with an object relational framework (such as Oracle9i Application Server [Oracle9iAS] TopLink) to implement a custom primary key finder method. After you define the EJB finder as a REDIRECT or NAMED finder, TopLink will generate the SQL query for retrieving the bean instance.
Data-Driven EJB Invocation
In a data-driven architecture, business logic invocation can be triggered as a result of database operations (such as inserts, updates, or deletes). A Java stored procedure implementing the data logic can be declared as a database trigger to invoke EJBs running in a middle-tier J2EE application server. You can make EJB calls by using either standard remote method invocation (RMI) over Interoperable Inter-ORB Protocol (IIOP), using a J2EE 1.3 compatible server, or RMI over a vendor-specific transport protocol (such as ORMI with Oracle9iAS/OC4J or RMI over T3 with BEA WebLogic). Each application server vendor has its own optimized protocol while providing RMI over IIOP for interoperability. Oracle9iAS supports both RMI calls over IIOP and ORMI protocols.
Data-Driven Messaging
Oracle9i Database embeds Advanced Queuing (AQ), which is an integrated, persistent, reliable, secure, scalable, and transactional message-queuing framework. Oracle exposes AQ features to Java developers through the standard Java Messaging System (JMS) API. Java stored procedures can invoke AQ operations through the JMS interface to allow fast, intra-session, scalable, data-driven messaging.
Java stored procedures can use JMS to invoke AQ operations. You can implement this pattern in four steps:
Create and start the JMS Queue (to do so, embed the following operations within a SQL script):
execute dbms_aqadm.create_queue_table(queue_table =>
'queue1', queue_payload_type =>
'SYS.AQ$_JMS_TEXT_MESSAGE', comment => 'a test queue',
multiple_consumers => false, compatible => '8.1.0');
execute dbms_aqadm.create_queue( queue_name => 'queue1',
queue_table => 'queue1' );
execute dbms_aqadm.start_queue(queue_name => 'queue1');
Create the Java stored procedure (a code snippet is shown):
public static void runTest(String msgBody)
try
// get database connection
ora_drv = new OracleDriver();
db_conn = ora_drv.defaultConnection();
// setup sender (cf online code sample)
// create message
s_msg = s_session.createTextMessage(msgBody);
// send message
sender.send(s_msg);
s_session.commit();
// receive message
r_msg = (TextMessage) receiver.receive();
r_session.commit();
// output message text
String body = r_msg.getText();
System.out.println("message was '"+body+"'");
Create the Call Spec:
create or replace procedure jmsproc (t1 IN VARCHAR)
as language java name 'jmsSample.main (java.lang.String[])';
Invoke the stored procedure:
call jmsproc('hello');
Database-Assisted Web Publishing (Cache Invalidation)
One of the common issues application architects must face is how to cache database information reliably to increase overall system performance. JCACHE is an upcoming standard specification (JSR 107) that addresses this problem. It specifies an approach for temporary, in-memory caching of Java objects, including object creation, shared access, spooling, invalidation, and consistency across JVMs. It can be used to cache read-mostly data such as product catalogs and price lists within JSP. Using JCACHE, most queries will have response times an order of magnitude faster because of cached data (in-house testing showed response times about 15 times faster).
In order to track all the changes to the origin data and refresh the cached data, a Java stored procedure is attached to a table as a trigger. Any change to this table will result in the automatic invocation of this stored procedure, which in turn will call out a defined JSP to invalidate the JCACHE object that maps its state to the database table. Upon invalidation, the very next query will force the cache to be refreshed from the database. Next Steps
READ MORE about Java Stored Procedures
This article is adapted from the white paper "Unleash the Power of Java Stored Procedures." You can find the white paper at:
/tech/java/java_db/pdf/
OW_30820_JAVA_STORED_PROC_paper.PDF
New PL/SQL features in Oracle9i Database, Release 2
/tech/pl_sql/pdf/
Paper_30720_Doc.pdf
Resolver Spec
/docs/products/oracle9i/
doc_library/release2/java.920/a96659.pdf
OracleJVM and Java 2 Security
/docs/products/oracle9i/
doc_library/release2/java.920/a96656.pdf
DOWNLOAD Code
Exercise code examples from this article:
/sample_code/tech/
java/jsp/Oracle9iJSPSamples.html
LEARN about stored procedures as Web services
/tech/webservices
Extending Database Functionality
One of the great things about running Java code directly in the database is the ability to implement new functionality by simply loading the code or library and using the Call Spec to make the entry points (public static methods) available to SQL, PL/SQL, Java, J2EE, and non-Java APIs. Oracle9i Database customers can easily extend database functionality. Oracle itself leverages this capability for new utilities and packages such as the XML Developer Kits (XDKs).
Bridging SQL, PL/SQL, Java, J2EE, .NET, and XML
The Oracle XDK is written in Java and exposes its public methods as Java stored procedures, extending the database's XML programmability. SQL, PL/SQL, Java, J2EE, and non-Java (.NET) business logic all have access to the XML parser, the XSLT processor, the XPath engine, and XML SQL Utility (XSU).
The XML parser is accessible through the xmlparser and xmldom packages. XSU is a Java utility that generates an XML document from SQL queries or a JDBC ResultSet, and writes data from an XML document into a database table or view. Using XSU, XML output can be produced as Text, DOM trees, or DTDs. XSU is exposed to PL/SQL through the dbms_xmlquery and dbms_xmlsave packages.
Conclusion
The integration of the Oracle database with a Java VM enables the creation of portable, powerful, database-independent data logic and persistence logic. The loose coupling of business logic that runs in the middle tier with data logic that runs in the database tier improves application scalability, performance, flexibility, and maintenance.
Kuassi Mensah ([email protected]) is a product manager in the Server Technologies division at Oracle.
http://otn.oracle.com/oramag/oracle/03-jan/o13java.html
Joel Pérez

How to trigger the BPM process from WD Application

Hello All,
I have a simple business process with two ui activities. I am able to start the process from NWA -> Process Repository.
But, I need to start the process from the application. Here is the requirement:
User opens the application. ON completion, the BPM process for approval needs to be triggered. How do i access/obtain process?
If I need to call a particular task in process, How do i do that?
Kindly assist.
Thank you.
Regards,
Sharath

if you want to know the whole story, please refer to the doc
http://help.sap.com/saphelp_nwce72/helpdata/en/44/4d2bb1c6b00597e10000000a155369/frameset.htm
the profile, provider system,endpoint。。。。。
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How to Use SOA Configuration to Call RFCs and Web Services from within SAP NetWeaver BPM
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and details are:
ADFDI-00108: user session required
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~~~~~~~~~~
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Result: [SUCCEEDED]
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oracle.adf.controller.security.TaskFlowPermission//dim/dimension-task-flow-definition.xml#dimension-task-flow-definition/customize,grant,personalize,view
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oracle.adf.controller.security.TaskFlowPermission//setup/setup-flow-definition.xml#setup-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//writeback/writeBack-task-flow-definition.xml#writeBack-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//setup/regApp-task-flow-definition.xml#regApp-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//writeback/valueMapping-task-flow-definition.xml#valueMapping-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//process/processDetails-task-flow-definition.xml#processDetails-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//setup/importProfile-task-flow-definition.xml#importProfile-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//setup/categoryMapping-task-flow-definition.xml#categoryMapping-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//setup/srcAcctEnties-task-flow-definition.xml#srcAcctEnties-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//hr/hr-task-flow-definition.xml#hr-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//setup/regSrcSystem-task-flow-definition.xml#regSrcSystem-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//setup/regFDMApps-task-flow-definition.xml#regFDMApps-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//setup/periodMapping-task-flow-definition.xml#periodMapping-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//setup/location-task-flow-definition.xml#location-task-flow-definition/customize,grant,personalize,view
oracle.adf.controller.security.TaskFlowPermission//dim/memberMapping-task-flow-definition.xml#memberMapping-task-flow-definition/customize,grant,personalize,view
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(oracle.security.jps.service.credstore.CredentialAccessPermission context=SYSTEM,mapName=*,keyName=* *)
(java.util.PropertyPermission line.separator read)
(java.util.PropertyPermission java.vm.version read)
(java.util.PropertyPermission java.vm.specification.version read)
(java.util.PropertyPermission java.vm.specification.vendor read)
(java.util.PropertyPermission java.vendor.url read)
(java.util.PropertyPermission java.vm.name read)
(java.util.PropertyPermission os.name read)
(java.util.PropertyPermission java.vm.vendor read)
(java.util.PropertyPermission path.separator read)
(java.util.PropertyPermission java.specification.name read)
(java.util.PropertyPermission os.version read)
(java.util.PropertyPermission mds.store.filesystem.path read)
(java.util.PropertyPermission os.arch read)
(java.util.PropertyPermission java.class.version read)
(java.util.PropertyPermission java.version read)
(java.util.PropertyPermission file.separator read)
(java.util.PropertyPermission java.vendor read)
(java.util.PropertyPermission java.vm.specification.name read)
(java.util.PropertyPermission java.specification.version read)
(java.util.PropertyPermission java.specification.vendor read)
(oracle.security.jps.service.policystore.PolicyStoreAccessPermission context=APPLICATION,name=* getApplicationPolicy)
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(java.lang.RuntimePermission exitVM)
oracle.adf.share.security.authorization.RegionPermission/com.hyperion.aif.gl.drilldown.userinterface.pageDefs.drilldownPageDef/view
oracle.adf.share.security.authorization.RegionPermission/com.hyperion.aif.gl.common.setup.userinterface.pageDefs.MainPageDef/grant,view
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java.security.AccessController.checkPermission(AccessController.java:546)

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Hi,
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StackTrace:
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TO_PARTY=XXX
AS2-To=XXX
DOCTYPE_NAME=TestAS2DT
DOCTYPE_REVISION=1.0
Date=Tue, 03 Nov 2009 06:09:22 GMT
AS2-Version=1.1
AS2-From=YYY
Content-Transfer-Encoding=binary
[email protected]
ACTION_NAME=TestAS2_BA
Content-Type=application/xml
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MIME-version=1.0
User-Agent=AS2 Server
FROM_PARTY=YYY
Content-Disposition=attachment; filename=1.0
Connection=Keep-Alive
From=YYY
Keep-Alive=timeout=15, max=100
<?xml version="1.0" encoding="UTF-8"?>
<Books>
<Book>
<BookTitle>Ajax Hacks</BookTitle>
<Author>Bruce W. Perry</Author>
<PubDate>March 2006</PubDate>
</Book>
</Books>
I am able to see the xml sent as response from web application in Payload as follows.
<?xml version="1.0" encoding="UTF-8"?>
<Books>
<Book>
<BookTitle>Ajax Hacks</BookTitle>
<Author>Bruce W. Perry</Author>
<PubDate>March 2006</PubDate>
</Book>
</Books>
I am able to see the HTTP response in b2b_dc_transport.log. In transport log it is not showing any error. Please help me to fix this issue.

Hi,
Request and Response should be part of same agreement. I hope you are not confused between Acknowledgement and Response. Acknowledgement can be received in the same session (sync mode) but Response will always come in a different session and will be treated as a different document. If, for request, party A is initiator and B is responder then for response party B will be initiator and party A will be responder (as Requset and Response are two docs in case of Custom Document)
For configuring X-Path, please refer section 8.3.11 Configuring the XPath Expression for a Custom XML Document at below link -
http://download.oracle.com/docs/cd/B14099_19/integrate.1012/b19370/busact_coll.htm#sthref784
Please let us know whether you are trying to receive a response or Ack?
Regards,
Anuj

I have a license for CS6 on my MacBook Pro. I want to purchase an iMAC and be able to do my heavy duty Photoshop processing on this new iMAC when I am at home I need to keep CS6 on my MacBook Pro and use it when I travel. How can I have copies of CS6 o

I have a license for CS6 on my MacBook Pro. I want to purchase an iMAC and be able to do my heavy duty Photoshop processing on this new iMAC when I am at home I need to keep CS6 on my MacBook Pro and use it when I travel. How can I have copies of CS6 on both machines. I am the only user of this software.

You can install and activate CS6 on both machines perfectly legally.

Building a Composite Business Process from Scratch-Guided 1 (Cannot Build)

Hi, I have tried to followed the document : Building a Composite Business Process from Scratch with SAP NetWeaver BPM u2013 Guide 1 to create my first BPM program, however, the program cannnot be built. I don't knoww how to fix the program, can you help?
Error: Constraint violation: Active pool "Investment Approval Process" must have exactly one End or Termination but any End Error Event.
Error: Constraint violation: Active pool "Investment Approval Process" must have exactly one Start Event.
Warning: Constraint violation: No administrator defined for "Investment Approval Process".
Warning: Constraint violation: Some of the data elements from input mapping of "Enter Purchase Request"is not initialized before used.
Warning: Constraint violation: Some of the data elements from input mapping of "Approve Purchase Request"is not initialized before used.
Error: Exception during constraint check of processes. Check Your model for problems.
Error: Constraint validation found errors
Ant build finished with ERRORS
Constraint validation found errors
Error: Build stopped due to an error: Constraint validation found errors
Regards,
Matt Yim

Hi Matt,
Check the following in your process:
- If you have gateways in your process, ensure that all the paths have conditions and atleast 1 default path for gateway is set
- Check for Process Administrator assignment and TaskLevel/Lane level potential owners are assigned
- Check for the i/o mapping of tasks
- Check the Problem View for th errors.
Cheers,
Arafat

MM,PM Business process from scarch

Hi Gurus,
Can any body ley me know the MM,PM business process from scratch.
what are the things should be done by MM consultant from scratch,
Thanks,
Dariya

Hi Dariya,
MM PRocess
Create Purchase Requisition
Maintain Quatation
Selecting the Vendor
Create the Purchase Order
Create Goods Receipt
Posting the Invoice
PM Process
Creat Master data Equipment
Creat Technical Object like Functional location
Create Maintenace plan
Create Maintenace Order
Processing the maintenace order
Calibration of testing Equipmemt
PM Notifications processing
Thanks and regards
Muruegsan

How to invoke business process from sap xi?

Hi...
Please tell "How to invoke business process from SAP UI's."

Hi...
How to invoke business process from SAP UI's. (Eg: To trigger a process after creating an invoice)

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Hi Gurus,
I have an requirement in which I need to fetch an CSV file from the server and place the file into an internal table in R/3.I got the function module and wrote the program for this,but now I need to call this ABAP program from Web Application designer.
To make it more explicit ,I need to call an ABAP Program /function module from the WAD.I am new to WAD Please help.
Ankit

Hi Ankit,
take a look:
/thread/725385 [original link is broken]
WAD and ABAP
How to call a ABAP or ABAP Class from the WEB
/people/kai.wachter/blog/2008/03/11/how-to-write-own-items-in-bi-70-java-runtime
Regards
Andreas

Invoking a WLI 9.2 business process from JSF Controller class

I want to call a WLI business process from a java class, which will run in the same JVM as the WLI. I have read that JPD Proxy can be used for this purpose. I am concerned with the overhead of RMI calls. Any insight into this would be helpful .

Hi Raj
You have to use JPDproxy to call a business process from a java class. This is what BEA also recommends at http://e-docs.bea.com/workshop/docs81/doc/en/integration/howdoI/howProxyJavaClient.html as this is the only way to call a JPD from plain java class.
Many customers use this and even if there is, the overhead should not be substantial.
You may also want to try posting in the WLI newsgroup at http://forums.bea.com/bea/forum.jspa?forumID=2047
Vimala-

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i use the below url for calling form from web application.
http://host51.yan.com/forms/frmservlet?form=test&width=700
i would like to know about "frmservlet"
if it's a servlet file then
where its located in application server10g

The servlet is part of the forms-installation on the application-server, on the local OC4J this is located in $ORACLE_HOME/forms/j2ee/formsapp.ear
What exactly do you want to know about the servlet?

Processing exported data from web application

Hi all,
here's my problem: I've got a Web Application designed in WAD and want to get the current navigation state (which is in the data provider) into an external application (i.e. a web service). What I already tried was to export the navigation state via SAP_BW_URL COMMAND='EXPORT' FORMAT='XML' and redireted it to a web service. But I wasn't able to get the XML document, I only got a XML_ID (as you can see in forum thread Accessing XML File).
Has anyone another approach to get the data exported and ready to be processed by a custom web service or external application (ABAP FM,..)?
Thanks in advance and best regards!
Dominik

Dear Dominik,
maybe is XMLA for Analysis in BW a solution for you:
try this links
http://help.sap.com/saphelp_nw04/helpdata/en/ba/e380e03c3a4dbf8cf082f0c910f9cf/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/d8/3bfc3f8fc2c542e10000000a1550b0/content.htm
This a SOAP Web Service which gives back query content, the query is defined within MDX Statement in a XML file.
There also exists a detailed How To Document in SAP Service Marketplace - but unfortunately i can´t found it.
Regards
Marcus

Separating heavy duty business process from web application

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