io.micronaut.annotation.processing

Class ModelUtils

java.lang.Object

io.micronaut.annotation.processing.ModelUtils

@Internal
public class ModelUtils
extends Object

Provides utility method for working with the annotation processor AST.

Since:

1.0

Author:

Graeme Rocher

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ModelUtils(Elements elementUtils, Types typeUtils)

Method Summary

Modifier and Type	Method and Description
TypeElement	classElementFor(Element element) Obtains the TypeElement for an given element.
ExecutableElement	concreteConstructorFor(TypeElement classElement, AnnotationUtils annotationUtils) The constructor inject for the given class element.
ExecutableElement	defaultConstructorFor(TypeElement classElement)
ExecutableElement	defaultStaticCreatorFor(TypeElement classElement, AnnotationUtils annotationUtils)
Set<TypeElement>	getAllInterfaces(TypeElement aClass)
Types	getTypeUtils()
boolean	isObjectClass(TypeElement element) Return whether the given element is the java.lang.Object class.
boolean	isPackagePrivate(Element element) Returns whether an element is package private.
Optional<ExecutableElement>	overridingOrHidingMethod(ExecutableElement overridden, TypeElement classElement, boolean strict) Tests if candidate method is overridden from a given class or subclass.
Optional<ElementKind>	resolveKind(Element element) The Java APT throws an internal exception {code com.sun.tools.javac.code.Symbol$CompletionFailure} if a class is missing from the classpath and Element.getKind() is called.
Optional<ElementKind>	resolveKind(Element element, ElementKind expected) The Java APT throws an internal exception {code com.sun.tools.javac.code.Symbol$CompletionFailure} if a class is missing from the classpath and Element.getKind() is called.
ExecutableElement	staticCreatorFor(TypeElement classElement, AnnotationUtils annotationUtils) The static method or Kotlin companion method to execute to construct the given class element.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ModelUtils

protected ModelUtils(Elements elementUtils,
                     Types typeUtils)

Parameters:

elementUtils - The Elements

typeUtils - The Types

Method Detail

getTypeUtils

public Types getTypeUtils()

Returns:

The type utilities

classElementFor

@Nullable
public final TypeElement classElementFor(Element element)

Obtains the TypeElement for an given element.

Parameters:

element - The element

Returns:

The TypeElement

concreteConstructorFor

@Nullable
public ExecutableElement concreteConstructorFor(TypeElement classElement,
                                                          AnnotationUtils annotationUtils)

The constructor inject for the given class element.

Parameters:

classElement - The class element

annotationUtils - The annotation utilities

Returns:

The constructor

staticCreatorFor

@Nullable
public ExecutableElement staticCreatorFor(TypeElement classElement,
                                                    AnnotationUtils annotationUtils)

The static method or Kotlin companion method to execute to construct the given class element.

Parameters:

classElement - The class element

annotationUtils - The annotation utilities

Returns:

The creator method

defaultConstructorFor

public ExecutableElement defaultConstructorFor(TypeElement classElement)

Parameters:

classElement - The class element

Returns:

True if the element has a non private 0 arg constructor

defaultStaticCreatorFor

public ExecutableElement defaultStaticCreatorFor(TypeElement classElement,
                                                 AnnotationUtils annotationUtils)

Parameters:

classElement - The class element

annotationUtils - The annotation utils

Returns:

A static creator with no args, or null

isObjectClass

public boolean isObjectClass(TypeElement element)

Return whether the given element is the java.lang.Object class.

Parameters:

element - The element

Returns:

True if it is java.lang.Object

isPackagePrivate

public boolean isPackagePrivate(Element element)

Returns whether an element is package private.

Parameters:

element - The element

Returns:

True if it is package provide

getAllInterfaces

public Set<TypeElement> getAllInterfaces(TypeElement aClass)

Parameters:

aClass - A class

Returns:

All the interfaces

overridingOrHidingMethod

public Optional<ExecutableElement> overridingOrHidingMethod(ExecutableElement overridden,
                                                            TypeElement classElement,
                                                            boolean strict)

Tests if candidate method is overridden from a given class or subclass.

Parameters:

overridden - the candidate overridden method

classElement - the type element that may contain the overriding method, either directly or in a subclass

strict - Whether to use strict checks for overriding and not include logic to handle method overloading

Returns:

the overriding method

resolveKind

public Optional<ElementKind> resolveKind(Element element,
                                         ElementKind expected)

The Java APT throws an internal exception {code com.sun.tools.javac.code.Symbol$CompletionFailure} if a class is missing from the classpath and Element.getKind() is called. This method handles exceptions when calling the getKind() method to avoid this scenario and should be used instead of Element.getKind().

Parameters:

element - The element

expected - The expected kind

Returns:

The kind if it is resolvable and matches the expected kind

resolveKind

public Optional<ElementKind> resolveKind(Element element)

The Java APT throws an internal exception {code com.sun.tools.javac.code.Symbol$CompletionFailure} if a class is missing from the classpath and Element.getKind() is called. This method handles exceptions when calling the getKind() method to avoid this scenario and should be used instead of Element.getKind().

Parameters:

element - The element

Returns:

The kind if it is resolvable