checkedCast() [4/4]

template<typename Prx, std::enable_if_t< std::is_base_of_v< ObjectPrx, Prx >, bool > = true>

std::optional< Prx > Ice::checkedCast	(	const std::optional< ObjectPrx > &	proxy,
		std::string	facet,
		const Context &	context = noExplicitContext )

Creates a new proxy from an existing proxy after confirming the target object's type via a remote invocation.

Parameters

proxy	The source proxy (can be nullopt).
facet	A facet name.
context	The request context.

Returns

A new proxy with the requested type and facet, or nullopt if the target facet is not of the requested type.

Definition at line 139 of file ProxyFunctions.h.