Custom development in SAP Netweaver Gateway Service

Hi gurus,

I'm currently configuring a SAP Netweaver Gateway Service using SEGW. Our gateway version is 7.02.

As per the requirement we have to add custom codes into the _DPC_EXT class in our services. But when we re-generate the project, our custom codes were overwritten and lost.

Our temporary work-around is to backup the codes/generate temporary version in SAP repositories but this becomes troublesome overtime as the gateway service grows bigger.

Is there any other way for us to preserve the custom codes?

Regards,

Nhan