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Java 5 and later support generic types. These types consist of a raw class
with type parameters. This class models such a
Type class but ensures
that the type is reified. Reification means that the Type graph
associated with a Java 5
Type instance is traversed until the type
becomes a concrete class. This class is available with the
method. The optional type parameters are recursively
represented as Reified Types.
In Java 1.4, a class has by definition no type parameters. This class
implementation provides the Reified Type for Java 1.4 by making the raw class
the Java 1.4 class and using a Reified Type based on the
for any requested type parameter.
A Blueprint extender implementations can subclass this class and provide
access to the generic type parameter graph for conversion. Such a subclass
must reify the different Java 5
Type instances into the
reified form. That is, a form where the raw Class is available with its
optional type parameters as Reified Types.
Map<String, ? extends Metadata>The raw class is the Map class.
i. For example, in the following example:
Map<String, ? extends Metadata>type parameter 0 is
String, and type parameter 1 is
This implementation returns a Reified Type that has
class. Any object is assignable to Object and therefore no conversion is
then necessary. This is compatible with versions of Java language prior
to Java 5.
This method should be overridden by a subclass that provides access to
the generic type parameter information for Java 5 and later.
iThe zero-based index of the requested type parameter.
ReifiedTypefor the generic type parameter at the specified index.