[j-nsp] BGP route filtering

[Jonathan Call]

My IPv6 BGP experience is a bit lacking.  What would be an appropriate IPv6 policy-statement to only install a default route. Is it something as basic as this?
policy-statement myisp-in {    term bgp-nets {        from {            route-filter beef:f00f:baaa::/48 exact;        }        then reject;    }    term allowed {        from {            route-filter ::/0 exact;        }        then accept;    }    term deny {        then reject;    }}

Thank you,Jonathan