Package javax.lang.model.element
for loop or try-finally
block. However, the interfaces can model some structures only
appearing inside method bodies, such as local variables and
anonymous classes.
When used in the context of annotation processing, an accurate model of the element being represented must be returned. As this is a language model, the source code provides the fiducial (reference) representation of the construct in question rather than a representation in an executable output like a class file. Executable output may serve as the basis for creating a modeling element. However, the process of translating source code to executable output may not permit recovering some aspects of the source code representation. For example, annotations with source retention cannot be recovered from class files and class files might not be able to provide source position information. Names of parameters may not be recoverable from class files. The modifiers on an element created from a class file may differ in some cases from an element for the same declaration created from a source file including:
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strictfpon a class or interface -
finalon a parameter -
protected,private, andstaticon classes and interfaces
During annotation processing, operating on incomplete or
erroneous programs is necessary; however, there are fewer
guarantees about the nature of the resulting model. If the source
code is not syntactically well-formed or has some other
irrecoverable error that could not be removed by the generation of
new classes or interfaces, a model may or may not be provided as a
quality of implementation issue. If a program is syntactically
valid but erroneous in some other fashion, any returned model must
have no less information than if all the method bodies in the
program were replaced by "throw new RuntimeException();".
If a program refers to a missing class or interface Xyz, the
returned model must contain no less information than if the
declaration of class or interface Xyz were assumed to be
"class Xyz {}", "interface Xyz {}", "enum Xyz {}",
"@interface Xyz {}", or "record Xyz {}". If a
program refers to a missing class or interface Xyz<K1,
... ,Kn>, the returned model must contain no less information than
if the declaration of Xyz were assumed to be "class Xyz<T1,
... ,Tn> {}" or "interface Xyz<T1, ... ,Tn> {}"
Unless otherwise specified in a particular implementation, the collections returned by methods in this package should be expected to be unmodifiable by the caller and unsafe for concurrent access.
Unless otherwise specified, methods in this package will throw
a NullPointerException if given a null argument.
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Interface SummaryInterfaceDescriptionRepresents an annotation.Represents a value of an annotation interface element.AnnotationValueVisitor<R,P>A visitor of the values of annotation interface elements, using a variant of the visitor design pattern.Represents a program element such as a module, package, class, or method.ElementVisitor<R,P>A visitor of program elements, in the style of the visitor design pattern.Represents a method, constructor, or initializer (static or instance) of a class or interface, including annotation type elements.Represents a module program element.Represents a directive within the declaration of this module.A visitor of module directives, in the style of the visitor design pattern.An exported package of a module.An opened package of a module.An implementation of a service provided by a module.A dependency of a module.A reference to a service used by a module.An immutable sequence of characters.Represents a package program element.A mixin interface for an element that has type parameters.A mixin interface for an element that has a qualified name.Represents a record component.Represents a class or interface program element.Represents a formal type parameter of a generic class, interface, method, or constructor element.Represents a field,
enumconstant, method or constructor parameter, local variable, resource variable, or exception parameter. -
Enum Class SummaryEnum ClassDescriptionThe
kindof an element.Represents a modifier on a program element such as a class, method, or field.Thekindof a directive.The nesting kind of a type element. -
Exception SummaryExceptionDescriptionIndicates that an unknown kind of annotation value was encountered.Indicates that an unknown kind of module directive was encountered.Indicates that an unknown kind of element was encountered.