AsInputStream

Typeclass that describes a Type (T) which can open and close an InputStream given an instance of T, intended for use with the javax.xml.stream classes.

Implementations may specify any Resource type they want, as long as it may be treated as an InputStream, and be able to be closed later on. An example use case would be if an implementation returned a wrapped InputStream, but the underlying resource was the underlying stream. In that case, the class may want to define Resource as (InputStream, WrappedInputStream); the resourceToStream method would return the WrappedInputStream, but the closeResource method would close the underlyingInputStream.