multiple functions in uvm_config_db/uvm_resource_db

Hi All,

We have uvm_resource_db for setting and getting the resource. Uvm have "get_by_name", "get_by_type", "read_by_name", "read_by_type" functions for getting the resource.

please let me know why do we need multiple function for getting the resource or what are the scenarios where we need these different function for getting the resource.

Thanks,
Rahul Kumar