Does SAP Cloud Platform SDK for service development support filter operation?

Hello experts,

While I'm exploring SAP Cloud Platform SDK for service development, I find that the doc doesn't say anything about $filter, $count.

https://help.sap.com/viewer/8be3667edfd34d71a80afe9f7f2b42a9/Cloud/en-US/90d806c4142f41c5a34cf0e62ec17ea9.html

I wonder if the SDK supports these operations and where I can find Java documents regarding to this SDK.

Thanks in advance.

Tri