Service request search filtration based on authorization

Hi all,

I have a requirement to filter service request search based on authorization provided for particular user.

Suppose we have 2 types of service requests say A and B.

There are 3 agents X, Y and Z.

X has authorization for A so he should able to search only A type service requests. Similarly Y should be able to search B type and Z should be able to search both A and B types.

When i click on search button CL_CRM_SRQM_COMMON_SR_CNTRL->perform_search( ) method is getting called. How do i use to achieve my requirement? Please give some hints or if you any better approach please suggest.

CL_CRM_SRQM_COMMON_SR_CNTRL is an abstract class.

Component : SRQM_INCIDENT_S

Thanks and Regards,

Pallavi