About Java Mapping

[former_member207019]

Hello,

Can any one explain Java mapping when I am sending PO to reciever system? And what are the necessary requirements? And what are the transction codes we will use for this?

Plz...........

Thank you

[justin_santhanam · Accepted solution]

Jyotsna,

I don’t know why Java mapping came to picture while dealing with PO. Anyhow I will try to explain what we are doing in out client place.

Get the data from legacy system, Using the PO number do the lookup in the ECC system and check whether PO Exists or not. If the PO Exists then construct the PORDCH(Purchase Order Change) Mapping, if the PO doesn’t exist then construct the PORDCR (Purchase order create) Mapping.

After scenario is done, go and check the IDOC, If it’s success then go to transaction ME23n and give the PO number to see the PO in ECC.

raj.

[Former Member]

Hi,

Java mapping can be used when you have complex mapping structures.

We can do most of the times for our requirements through Graphical mapping.

When the structures are very complex to build you can go for SAX (Simple API for XML) or DOM (Document Object Model) parsers.

Message mapping internally generates DOM parser.

Java Mapping in XI

https://www.sdn.sap.com/irj/sdn/advancedsearch?cat=sdn_all&query=java+mapping&adv=false&sortby=cm_rn...

SAP Network Blog: Implementing a Java Mapping in SAP PI

/people/carlosivan.prietorubio/blog/2007/12/21/implementing-a-java-mapping-in-sap-pi

Java Mapping (SAP Library - Partner Connectivity Kit)

http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/frameset.htm

SAP Network Blog: XI Java Mapping Helper (DOM)

/people/alessandro.guarneri/blog/2007/03/25/xi-java-mapping-helper-dom

SAP Network Blog: Testing and Debugging Java Mapping

/people/stefan.grube/blog/2006/10/23/testing-and-debugging-java-mapping-in-developer-studio

Binary Conversion in XI - Java Mapping - Code Gallery - Wiki

https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/binary%2bconversion%2bin%2bxi%2b-%2bjava...

SAP Network Blog: "JAVA MAPPING", an alternate way of reading a CSV file

/people/rahul.nawale2/blog/2006/07/18/java-mapping-an-alternate-way-of-reading-a-csv-file

/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-i

/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-ii

/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-iii

/people/ravikumar.allampallam/blog/2005/06/24/convert-any-flat-file-to-any-idoc-java-mapping

/people/amol.joshi2/blog/2006/03/10/think-objects-when-creating-java-mappings

http://help.sap.com/saphelp_nw04/helpdata/en/e2/e13fcd80fe47768df001a558ed10b6/content.htm

http://help.sap.com/saphelp_nw04s/helpdata/en/43/09b16006526e72e10000000a422035/frameset.htm

/people/venkataramanan.parameswaran/blog/2006/12/12/java-mapping-to-handle-flat-files-in-sap-xi

Thanks

Swarup

[former_member238007]

Hi,

For java mapping u need NWDS, ie developer studio.. and for

*Java Program : *The message is transferred to a Java program as an inbound stream and can be imported using any parser (for example, SAX or DOM). The modified message is then transferred to an outbound stream.

A Java program can also be a help program that in turn is used in another Java program or self-defined functions of a message mapping.

Java mapping programs are not permitted to be stateful. You are therefore not permitted to perform actions such as writing data to a database table during a Java mapping. The Integration Server cannot track these side effects. As a result, when it attempts to resend a message that has not yet been received by a receiver, data may inadvertently be written to the database twice in the Java mapping.

Also note that you are not permitted to call java.lang.System.exit()or java.lang.System.setProperties()within a Java mapping.

To use Java mapping, you must define a Java class that implements the Java interface com.sap.aii.mapping.api.StreamTransformation. This interface has two methods:

public void execute(java.io.InputStream in, java.io.OutputStream out)

At runtime, the Integration Engine calls this method to execute a mapping. This method contains an input stream for the source document and an output stream for the target document as parameters. These streams are often XML documents. You can import the substructure that you want to convert from the input stream and output the converted target document in the output stream.

public void setParameter(java.util.Map param)

The Integration Engine transfers parameters to the mapping program with this method. It evaluates these parameters at runtime in the method execute(). This enables you to control the process run of the mapping.

The transferred object that implements the Java interface java.util.Map, contains seven key/value pairs as parameters. These correspond to corresponding fields in the message header. Apart from the MAPPING_TRACE constant, the value objects are of type java.lang.String. The key objects are defined in the class com.sap.aii.mapping.api.StreamTransformationConstants:

JAVA Proxies:

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a068cf2f-0401-0010-2aa9-

f5ae4b2096f9

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f272165e-0401-0010-b4a1-

e7eb8903501d

use of proxies

/people/ravikumar.allampallam/blog/2005/08/14/choose-the-right-adapter-to-integrate-with-sap-systems

regards,

Kishore

[Former Member]

Hi,

Check these for JAVA Mapping

/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-i

/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-ii

/people/prasad.ulagappan2/blog/2005/06/29/java-mapping-part-iii

Testing and debuggin

/people/stefan.grube/blog/2006/10/23/testing-and-debugging-java-mapping-in-developer-studio

Implermenting JAVA Mapping in PI

/people/carlosivan.prietorubio/blog/2007/12/21/implementing-a-java-mapping-in-sap-pi

Regards

Seshagiri