dev.jeka.core.api.java

Class JkClassLoader

java.lang.Object

dev.jeka.core.api.java.JkClassLoader

public class JkClassLoader
extends java.lang.Object

Wrapper class around ClassLoader providing convenient methods.

Method Summary

Modifier and Type	Method and Description
java.util.List<java.lang.String>	findClassesHavingMainMethod() Returns all class names having a main method.
java.util.List<java.lang.String>	findClassesMatchingAnnotations(java.util.function.Predicate<java.util.List<java.lang.String>> annotationNamePredicate) Returns all classes matching the specified annotation predicate.
java.lang.ClassLoader	get() Return the URLClassLoader wrapped by this object.
JkPathSequence	getClasspath() Returns the classpath for this classloader excluding elements on the platform/system classloader.
<T> T	instantiate(java.lang.String className) Creates an instance of the class having the specified name in this class loader.
boolean	isDefined(java.lang.String className) Returns if the specified class is defined in this classloader.
<T> java.lang.Class<T>	load(java.lang.String className) Delegates the call to ClassLoader.loadClass(String) of this wrapped class loader. The specified class is supposed to be defined in this class loader, otherwise an IllegalArgumentException is thrown.
<T> java.lang.Class<T>	loadIfExist(java.lang.String className) Loads the class having the specified name or return null if no such class is defined in this classloader.
static JkClassLoader	of(java.lang.ClassLoader classLoader)
static JkClassLoader	ofCurrent() Returns a JkClassLoader wrapping the current thread context classloader.
static JkClassLoader	ofLoaderOf(java.lang.Class<?> clazz) Returns a JkClassLoader wrapping the class loader having loaded the specified class.
java.lang.String	toString()
java.lang.String	toString(int maxEntryCount)

Methods inherited from class java.lang.Object

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

Method Detail

of

public static JkClassLoader of(java.lang.ClassLoader classLoader)

ofCurrent

public static JkClassLoader ofCurrent()

Returns a JkClassLoader wrapping the current thread context classloader.

ofLoaderOf

public static JkClassLoader ofLoaderOf(java.lang.Class<?> clazz)

Returns a JkClassLoader wrapping the class loader having loaded the specified class.

get

public java.lang.ClassLoader get()

Return the URLClassLoader wrapped by this object.

load

public <T> java.lang.Class<T> load(java.lang.String className)

Delegates the call to ClassLoader.loadClass(String) of this wrapped class loader.
The specified class is supposed to be defined in this class loader, otherwise an IllegalArgumentException is thrown.

isDefined

public boolean isDefined(java.lang.String className)

Returns if the specified class is defined in this classloader.

loadIfExist

public <T> java.lang.Class<T> loadIfExist(java.lang.String className)

Loads the class having the specified name or return null if no such class is defined in this classloader.

instantiate

public <T> T instantiate(java.lang.String className)

Creates an instance of the class having the specified name in this class loader.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

toString

public java.lang.String toString(int maxEntryCount)

findClassesHavingMainMethod

public java.util.List<java.lang.String> findClassesHavingMainMethod()

Returns all class names having a main method.

findClassesMatchingAnnotations

public java.util.List<java.lang.String> findClassesMatchingAnnotations(java.util.function.Predicate<java.util.List<java.lang.String>> annotationNamePredicate)

Returns all classes matching the specified annotation predicate.

getClasspath

public JkPathSequence getClasspath()

Returns the classpath for this classloader excluding elements on the platform/system classloader.