org.apache.polygene.bootstrap

Class ClassScanner

java.lang.Object

org.apache.polygene.bootstrap.ClassScanner

public class ClassScanner
extends Object

Scan classpath for classes that matches given criteria. Useful for automated assemblies with lots of similar classes.

Constructor Summary

Constructors

Constructor and Description
ClassScanner()

Method Summary

Modifier and Type	Method and Description
static Stream<? extends Class<?>>	findClasses(Class<?> seedClass) Get all classes from the same package of the given class, and recursively in all subpackages.
static Predicate<Class<?>>	matches(String regex) Useful specification for filtering classes based on a regular expression matching the class names.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassScanner

public ClassScanner()

Method Detail

findClasses

public static Stream<? extends Class<?>> findClasses(Class<?> seedClass)

Get all classes from the same package of the given class, and recursively in all subpackages.

This only works if the seed class is loaded from a file: URL. Jar files are possible as well. Abstract classes are not included in the results. For further filtering use e.g. Stream.filter.

Parameters:

seedClass - starting point for classpath scanning

Returns:

Stream of all concrete classes in the same package as the seedclass, and also all classes in subpackages.

matches

public static Predicate<Class<?>> matches(String regex)

Useful specification for filtering classes based on a regular expression matching the class names.

Example: matches(".*Model") -> match only class names that end with Model

Parameters:

regex - The regular expression to be matched.

Returns:

regex class name specification