File Doc Category Size Date Package
ParameterizedType.java API Doc Java SE 5 API 2960 Fri Aug 26 14:57:06 BST 2005 java.lang.reflect

ParameterizedType

public interface ParameterizedType implements Type

ParameterizedType represents a parameterized type such as Collection<String>.

A parameterized type is created the first time it is needed by a reflective method, as specified in this package. When a parameterized type p is created, the generic type declaration that p instantiates is resolved, and all type arguments of p are created recursively. See {@link java.lang.reflect.TypeVariable TypeVariable} for details on the creation process for type variables. Repeated creation of a parameterized type has no effect.

Instances of classes that implement this interface must implement an equals() method that equates any two instances that share the same generic type declaration and have equal type parameters.

since: 1.5

Fields Summary
Constructors Summary
Methods Summary
public java.lang.reflect.Type[] getActualTypeArguments()
Returns an array of Type objects representing the actual type arguments to this type.
Note that in some cases, the returned array be empty. This can occur if this type represents a non-parameterized type nested within a parameterized type.
return
an array of Type objects representing the actual type arguments to this type
throws
TypeNotPresentException if any of the actual type arguments refers to a non-existent type declaration
throws
MalformedParameterizedTypeException if any of the actual type parameters refer to a parameterized type that cannot be instantiated for any reason
since
1.5
public java.lang.reflect.Type getOwnerType()
Returns a Type object representing the type that this type is a member of. For example, if this type is {@code O.I}, return a representation of {@code O}.
If this type is a top-level type, null is returned.
return
a Type object representing the type that this type is a member of. If this type is a top-level type, null is returned
throws
TypeNotPresentException if the owner type refers to a non-existent type declaration
throws
MalformedParameterizedTypeException if the owner type refers to a parameterized type that cannot be instantiated for any reason
since
1.5
public java.lang.reflect.Type getRawType()
Returns the Type object representing the class or interface that declared this type.
return
the Type object representing the class or interface that declared this type
since
1.5