How to access one DC from another DC

Question

Hello,
I have create a seperate DC for Model. I declared the model as public part. Also I have grant the access to the main DC, Could you please tell me how to proceed further?.
How can I access this Model DC from my project DC?.
Thanks
Sunita.

Answer 1

Hi sunitha
<b>Model DC</b>
1) In the model dc
Component controller
Create a rfc execution method
  //@@begin javadoc:CallRfc()
  /** Declared method. */
  //@@end
  public void CallRfc( java.lang.String rfcinput )
    //@@begin CallRfc()
     //Rfc execution steps
    //@@end
2) component interface controller
Add the usage of component controller of model dc component
create a method in interface controller for calling the method CallRfc in component controller
//@@begin javadoc:Interfa_ctl_mthd()
  /** Declared method. */
  //@@end
  public void Interfa_ctl_mthd( java.lang.String rfcimport )
    //@@begin Interfa_ctl_mthd()
    wdThis.wdGet<modeldc>Controller().CallRfc(rfcimport);
    //@@end
3) Open the DC Metadata>Public Part>New public part
     Give a name and Select the API and in the Select Entity type, select the web dynpro component and in the select entity which is at the bottom of select entity select the modeldc/component (Ie component inside the web dynpro component)
4) Build and deploy the model dc
<b>Project DC</b>
1) Expand the DC metedata > used DC >right click and select add used dc and select the model dc and select the build type in dependency tab
2) Expand the web dynpro component structure and Select the Used web dynpro component and right click and select used webdynpro component and browse the component and give a name ie RFCComp
3)In the view of project dc define the usage of the component RFCComp
In any action of button , call the RFC comp like this
//@@begin javadoc:onActionGo(ServerEvent)
  /** Declared validating event handler. */
  //@@end
  public void onActionGo(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
    //@@begin onActionGo(ServerEvent)
    wdThis.wdGetRFCCompInterface().Interfa_ctl_mthd("XXXXXXXX");
    //@@end
Hope this helps,
Regards,
Arun