In Netweaver 7 Ehp 2 we have the ability to create CHIPs (Collaborative Human Interface Part).
They are really powerful, and very easy to create.
We can implement CHIPs in the PageBuilder and in the Side Panel.
A huge advantage of CHIPs is that we only have to create them once. We can then implement them endless in other web dynpro applications by configuration. No programming effort is required. A functional consultant could do the configuration for new or exisiting applications (in an ideal world!).
In a project I currently work i have created a few CHIPs for displaying additional information about the customer. The CHIPs are implemented in a side panel and the end-user can select which additional information he wants to see.
In this blog (part 1) i am going to explain how to create a CHIP from a web dynpro. In the next blog (part 2) i am going to explain how to create a side panel in a web dynpro. Then we are going to implement our created CHIP in the side panel and automatic wire it to the web dynpro application.
A Netweaver 7 Ehp 2 system.
Some Web Dynpro knowledge
What are we going to create?
We are going to create a CHIP that provides information about a carrier.
The carrier information is placed in the side panel.
The image below is the result of the CHIP in the side panel
Step 1: Create a web dynpro
I named my web dynpro component ZZ_RV_CHIP
Step 2: Setup the component controller
In the component controller we have to setup the context and create an interface method
The method must be an interface method
You can only put STRUCTURES of the DDIC as a parameter!
Write the code below into the method set_data()
Step 3: Setup the view
Map the context of the component controller to the view and create a form like below
Step 4: Create the CHIP
In the context menu of the component we have the ability to create a CHIP
Fill in a name and description.
Don’t forget to fill in a CHIP Icon, so you can recognize the CHIP in the CHIP catalog.
The CHIP catalog is a repository of all CHIPs. We will see it in the next blog (part 2)
For setting data in the CHIP we have Inports and for getting data out of the CHIP we have Outports.
Technically the Inport is an web dynpro interface method and the Outport is an web dynpro interface event.
We have created an interface method so we can select it as an Inport.
After adding the method we can select which parameters are available to wire this CHIP it to another CHIP.
Wire means a connection with another CHIP based on variables.
To wire this CHIP automatically to another CHIP we have to provide a Tag.
A tag is an unique name for a variable, so that the CHIP can synchronize to another CHIP based on the Tag name.
In the next blog (part 2) we will see what this means. for now just create a Tag for the variable CARRID.
Don’t forget to save the CHIP.
You have created you first CHIP.
At this point we can implement our created CHIP in the PageBuilder or in a Side Panel.
In the next blog (part 2) we are going to create a web dynpro application with a side panel. Then we are going to implement the CHIP in the side panel and automatic wire it to the web dynpro application.
Currently there is no CHIP plugin for SAPLINK, but maybe if we ask Thomas Jung (or another developer) really nice, then maybe it will be there soon.
I have created a SAPLINK plugin for Web Dynpro CHIPs. For more information see SAPLink plugin for Web Dynpro CHIPs