Returns true if this either implements the interface argument or is directly or indirectly a wrapper
for an object that does. Returns false otherwise. If this implements the interface then return true,
else if this is a wrapper then return the result of recursively calling
isWrapperFor
on the wrapped
object. If this does not implement the interface and is not a wrapper, return false.
This method should be implemented as a low-cost operation compared to
unwrap
so that
callers can use this method to avoid expensive
unwrap
calls that may fail. If this method
returns true then calling
unwrap
with the same argument should succeed.
Returns:
true if this implements the interface or directly or indirectly wraps an object that does.
Parameters:
-
interfaces - a Class defining an interface.
Throws:
-
java.sql.SQLException - if an error occurs while determining whether this is a wrapper
for an object with the given interface.
Since:
1.6