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com.sun.mirror.util
Interface Types
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public interface Types
Utility methods for operating on types.
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Since:
- 1.5
isSubtype
boolean isSubtype(
TypeMirror t1,
TypeMirror t2)
- Tests whether one type is a subtype of the another.
Any type is considered to be a subtype of itself.
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Parameters:
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t1 - the first type -
t2 - the second type
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Returns:
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true if and only if the first type is a subtype
of the second
isAssignable
boolean isAssignable(
TypeMirror t1,
TypeMirror t2)
- Tests whether one type is assignable to another.
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Parameters:
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t1 - the first type -
t2 - the second type
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Returns:
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true if and only if the first type is assignable
to the second
getErasure
TypeMirror getErasure(
TypeMirror t)
- Returns the erasure of a type.
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Parameters:
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t - the type to be erased
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Returns:
- the erasure of the given type
getPrimitiveType
PrimitiveType getPrimitiveType(
PrimitiveType.Kind kind)
- Returns a primitive type.
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Parameters:
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kind - the kind of primitive type to return
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Returns:
- a primitive type
getVoidType
VoidType getVoidType()
- Returns the pseudo-type representing the type of void.
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Returns:
- the pseudo-type representing the type of void
getArrayType
ArrayType getArrayType(
TypeMirror componentType)
- Returns an array type with the specified component type.
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Parameters:
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componentType - the component type
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Returns:
- an array type with the specified component type.
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Throws:
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IllegalArgumentException
- if the component type is not valid for
an array
getTypeVariable
TypeVariable getTypeVariable(
TypeParameterDeclaration tparam)
- Returns the type variable declared by a type parameter.
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Parameters:
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tparam - the type parameter
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Returns:
- the type variable declared by the type parameter
getWildcardType
WildcardType getWildcardType(
Collection<
ReferenceType> upperBounds,
Collection<
ReferenceType> lowerBounds)
- Returns a new wildcard.
Either the wildcards's upper bounds or lower bounds may be
specified, or neither, but not both.
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Parameters:
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upperBounds - the upper bounds of this wildcard,
or an empty collection if none -
lowerBounds - the lower bounds of this wildcard,
or an empty collection if none
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Returns:
- a new wildcard
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Throws:
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IllegalArgumentException
- if bounds are not valid
getDeclaredType
DeclaredType getDeclaredType(
TypeDeclaration decl,
TypeMirror... typeArgs)
- Returns the type corresponding to a type declaration and
actual type arguments.
Given the declaration for String, for example, this
method may be used to get the String type. It may
then be invoked a second time, with the declaration for Set,
to make the parameterized type
Set<String>.
The number of type arguments must either equal the
number of the declaration's formal type parameters, or must be
zero. If zero, and if the declaration is generic,
then the declaration's raw type is returned.
If a parameterized type is being returned, its declaration
must not be contained within a generic outer class.
The parameterized type Outer<String>.Inner<Number>,
for example, may be constructed by first using this
method to get the type Outer<String>, and then invoking
getDeclaredType(DeclaredType, TypeDeclaration, TypeMirror...).
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Parameters:
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decl - the type declaration -
typeArgs - the actual type arguments
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Returns:
- the type corresponding to the type declaration and
actual type arguments
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Throws:
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IllegalArgumentException
- if too many or too few
type arguments are given, or if an inappropriate type
argument or declaration is provided
getDeclaredType
DeclaredType getDeclaredType(
DeclaredType containing,
TypeDeclaration decl,
TypeMirror... typeArgs)
- Returns the type corresponding to a type declaration
and actual arguments, given a
containing type
of which it is a member.
The parameterized type
Outer<String>.Inner<Number>,
for example, may be constructed by first using
getDeclaredType(TypeDeclaration, TypeMirror...)
to get the type Outer<String>, and then invoking
this method.
If the containing type is a parameterized type,
the number of type arguments must equal the
number of the declaration's formal type parameters.
If it is not parameterized or if it is null, this method is
equivalent to getDeclaredType(decl, typeArgs).
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Parameters:
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containing - the containing type, or null if none -
decl - the type declaration -
typeArgs - the actual type arguments
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Returns:
- the type corresponding to the type declaration and
actual type arguments,
contained within the given type
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Throws:
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IllegalArgumentException
- if too many or too few
type arguments are given, or if an inappropriate type
argument, declaration, or containing type is provided
Copyright (c) IBM Corp. and others 2000, 2008. All Rights Reserved.
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