Best practice for connecting to SAP backend from JSPDynPage

Hi,
Can anyone help clear up some confusion I have over connecting to SAP from Java?
We have a number of JSPDynPage portal applications on EP7 Ehp1 that connect to SAP ECC6.
We currently use 2 methods to call remote functions on the ECC system.
1) Enterprise connector and JCo Client Service
This method has the advantage of automatically generated proxy classes and typed access to function module parameters. It is also more closely aligned to Web Dynpro from a design time point of view
However it also has a number of disadvantages in that it does not support table APPEND structures and requires regeneration for every change to the ABAP structures involved even if the field that has changed is not being referred to. In addition the use of the JCo client service means that the connection pooling must be handled ourselves explicitly
2) Connector Framework - SAP System Connector
This method has the advantage that connection management is handled by the framework. It also has the advantage that fields are referred to by name so if an ABAP structure changes then the remote call will not fall over as long as the named fields are still available.
However this method is more cumbersome because no proxy classes are generated and function module parameters are referred to generically so errors are not picked up by the complier.
Given the limitations of the above 2 methods, what is the recommended approach?
In the book u2018Inside Web Dynpro for Javau2019 Chris Whealy says the following about the Adaptive RFC Layer:
u2018Any Java program running in the AS Java u2013 not just Web Dynpro u2013 can make use of the Adaptive RFC layeru2019
Has anyone been able to use the Adaptive RFC layer from a NON-WebDynpro java application?
Any thoughts on the above would be most welcome.
Thanks,
Denis.

Hello,
The recommended way is with JCA Connector.
Adaptive RFC is included from NW7.1,
See "Creating an Adaptive RFC2 Sample Application without using Web Dynpro"
in the SAP HELP of NWCE7.1 or NWCE7.2.
Seems to be based in JCo 3.0 and Java5 so it will not work in NW70.
For older Versions like EP 5 there is also a JCo ClientService available.
Regards
Johannes

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I've been giving this some thought over the weekend and this is the best answer I've come up with from a developer's perspective:
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id foo.col1%type;
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Hi all,
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We are porting an application from SQL Server to oracle and would like to know what the best practices are in oracle for user connections to an Oracle instance.
More or less the question could be put like this:
1) The equivalent of a SQL Server Database in Oracle is a Schema. (more or less)
2) A specific application has it's own schema where it keeps all related objects (Tables, etc)
3) In SQL Server you grant access to the Database and its objects (Tables, etc) to all users of the application.
4) In Oracle do you grant access to the Schema and its objects (Tables, etc) to all users of the application also? Or do all users log
in as the schema owner?There are ways to implement the same.
Case 1.
Create different roles, such as APP_ROLE, READONLY_ROLE. Create public synonym for objects in SchemaApplication user. Grant these role to single user say appUser this is different from you SchemaApplication user. Use appUser to connect to application and for different user like userChris, userDave provide another layer of security. Say userDave is allowed only to deal with cash related transaction, so allow him to open only those screens which are related to cash transaction only.
Case 2.
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No. It is not a good practice to allow the user to login to database using the application owner.
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HTH
Virendra

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I'm with Ben. Don't rely on the current ability to serialize an object. Create a save method and implement some form of data persistence there. If you modify your class you might be disappointed when you cannot load objects you previously saved. It mostly works but as soon as you reset the version information in the class, you can no longer load the old objects. This is fine if you know how to avoid resetting the history. One thing that will do this is if you move the class into or out of a library. It becomes a new class with version 1.0.0 and it no longer recognizes the old objects.
[Edit: I see that you are just writing to a binary file. I'm not sure you can load older objects anyway using that method but I have never tried it.]
This will not help you right now but there are plans for a nice robust API for saving objects.
=====================
LabVIEW 2012

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Thanks

Hi Naser,
Below information will helps you in detail explanation regarding Chemical industry....
SAP Best Practices packages support best business practices that quickly turn your SAP ERP application into a valuable tool used by the entire business. You can evaluate and implement specific business processes quickly u2013 without extensive Customization of your SAP software. As a result, you realize the benefits with less Effort and at a lower cost than ever before. This helps you improve operational efficiency while providing the flexibility you need to be successful in highly demanding markets. SAP Best Practices packages can benefit companies of all sizes, including global enterprises creating a corporate template for their subsidiaries.
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u2013 Presales and contracts
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u2013 EH&S industrial hygiene and safety
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More Details
This section details the most common business scenarios u2013 those that benefit most from the application of best practices.
Sales and Marketing
SAP Best Practices for Chemicals supports the following sales and marketingu2013related business processes:
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SAP Functions in Detail u2013 SAP Best Practices for Chemicals
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SAP Best Practices for Chemicals supports supply chain planning as well as supply chain execution processes:
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SAP Best Practices for Chemicals supports the following sales and
Manufacturingu2013related business processes:
Continuous production u2013 In a continuous production scenario, SAP Best Practices for Chemicals typifies the practice used by basic or commodity chemical producers. For example, in the continuous production of plastic granules, production order processing is based on run-schedule headers. This best-practice package also describes batch and quality management in continuous production. Other processes it supports include handling of byproducts,co-products, and the blending process.
Batch production u2013 For batch production,
SAP Best Practices for Chemicals typifies the best practice used by specialty
chemical producers. The following example demonstrates batch production
of paint, which includes the following business processes:
u2022 Process order creation, execution, and completion
u2022 In-process and post process control
u2022 Paperless manufacturing using XMLbased Process integration sheets
u2022 Alerts and events
u2022 Batch derivation from bulk to finished materials
Enterprise Management and Support
SAP Best Practices for Chemicals also supports a range of scenarios in this
area:
Plant maintenance u2013 SAP Best Practices for Chemicals allows for management
of your technical systems. Once the assets are set up in the system, it focuses on preventive and emergency maintenance. Tools and information support the setup of a production plant with assets and buildings.Revenue and cost controlling u2013 The package supports the functions that help you meet product-costing requirements in the industry. It describes how cost centers can be defined, attached
to activity types, and then linked to logistics. It also supports costing and settlement of production orders for batch and continuous production. And it includes information and tools that help you analyze sales and actual costs in a margin contribution report.
The SAP Best Practices for Chemicals package supports numerous integrated
business processes typical of the chemical industry, including the following:
u2022 Quality management u2013 Supports integration of quality management concepts across the entire supplychain (procurement, production, and sales), including batch recall and complaint handling
u2022 Batch management u2013 Helps generate batches based on deliveries from vendors or because of company production or filling, with information and tools for total management of batch production and associated processes including batch derivation, batch information cockpit, and a batchwhere- used list
u2022 Warehouse management u2013 Enables you to identify locations where materials
or batch lots are stored, recording details such as bin location and other storage information on dangerous goods to help capture all information needed to show compliance with legal requirements
Regards
Sudheer

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