Package io.vertigo.core.lang

Class ClassSelector

java.lang.Object

io.vertigo.core.lang.ClassSelector

public final class ClassSelector
extends Object

Utility class for selecting and filtering classes through reflection. Provides a fluent API for: - 1. Defining class scope by packages or explicit classes - 2. Filtering classes, methods and fields by predicates - 3. Finding matching elements with type safety - Supporting annotation-based filtering - Enabling component scanning and introspection Usage example: ClassSelector.from("com.example") .filterClasses(ClassConditions.annotatedWith(MyAnnotation.class)) .filterMethods(MethodConditions.annotatedWith(MyMethodAnnotation.class)) .findMethods();

Author:

mlaroche

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	ClassSelector.ClassConditions	Utility class for class selection predicates.
static final class	ClassSelector.FieldConditions	Utility class for field selection predicates.
static final class	ClassSelector.MethodConditions	Utility class for method selection predicates.

Method Summary

Modifier and Type	Method	Description
ClassSelector	filterClasses(Predicate<Class> classPredicate)	Filters classes with a predicate.
ClassSelector	filterFields(Predicate<Field> fieldPredicate)	Filters field with a predicate.
ClassSelector	filterMethods(Predicate<Method> methodPredicate)	Filters method with a predicate.
Collection<Class>	findClasses()	Find the classes matching the requirements and with method matching the requirements.
Collection<Tuple<Class,Field>>	findFields()	Finds the fields matching the requirements with the associatedClass.
Collection<Tuple<Class,Method>>	findMethods()	Find the methods matching the requirements and with method matching the requirements.
static ClassSelector	from(Class clazz)	Adds a class to the scope.
static ClassSelector	from(String packageName)	Adds all the classes with a package prefix in the scope.
static ClassSelector	from(Collection<Class> classes)	Adds a set of classes to the scope.

Methods inherited from class java.lang.Object

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

Method Details

from

public static ClassSelector from(Collection<Class> classes)

Adds a set of classes to the scope.

Parameters:

classes - a supplier of classes

Returns:

the selector

from

public static ClassSelector from(Class clazz)

Adds a class to the scope.

Parameters:

clazz - the class to add

Returns:

the selector

from

public static ClassSelector from(String packageName)

Adds all the classes with a package prefix in the scope.

Parameters:

packageName - the root package

Returns:

the selector

filterFields

public ClassSelector filterFields(Predicate<Field> fieldPredicate)

Filters field with a predicate.

Parameters:

fieldPredicate - the predicate

Returns:

the selector

filterMethods

public ClassSelector filterMethods(Predicate<Method> methodPredicate)

Filters method with a predicate.

Parameters:

methodPredicate - the predicate

Returns:

the selector

filterClasses

public ClassSelector filterClasses(Predicate<Class> classPredicate)

Filters classes with a predicate.

Parameters:

classPredicate - the predicate

Returns:

the selector

findClasses

public Collection<Class> findClasses()

Find the classes matching the requirements and with method matching the requirements.

Returns:

the classes matching the selector

findMethods

public Collection<Tuple<Class,Method>> findMethods()

Find the methods matching the requirements and with method matching the requirements.

Returns:

the classes matching the selector

findFields

public Collection<Tuple<Class,Field>> findFields()

Finds the fields matching the requirements with the associatedClass.

Returns:

the classes matching the selector