org.eclipse.golo.runtime

Class Loader

java.lang.Object

org.eclipse.golo.runtime.Loader

All Implemented Interfaces:

java.util.function.Function<java.lang.String,java.lang.Class<?>>

public final class Loader
extends java.lang.Object
implements java.util.function.Function<java.lang.String,java.lang.Class<?>>

A Loader just encapsulate a ClassLoader. The class implements java.util.function.Function<String, Class<?>> so that a loader can be directly mapped to a stream of the names of the classes to load. Moreover, the ClassNotFoundException is catched to return null, allowing a more "flowing" use. For instance:

 Loader loader = Loader.forObject(this);
 Stream.of("java.lang.String", "gololang.Tuple", "foo.bar.Baz", "java.util.LinkedList")
     .map(loader)
     .filter(java.util.Objects::nonNull)
     .map(klass -> dealWithTheClass(klass))
 

Method Summary

Modifier and Type	Method and Description
java.lang.Class<?>	apply(java.lang.String name) Just delegate to load(java.lang.String) to implement Function.
static Loader	forClass(java.lang.Class<?> klass) Create a loader using the ClassLoader of the given class
static Loader	forClassLoader(java.lang.ClassLoader loader)
static Loader	forCurrentThread() Create a loader using the ClassLoader of the current thread.
java.lang.Class<?>	load(java.lang.String name) Load the given class.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Method Detail

forClassLoader

public static Loader forClassLoader(java.lang.ClassLoader loader)

forCurrentThread

public static Loader forCurrentThread()

Create a loader using the ClassLoader of the current thread.

Returns:

a Loader

forClass

public static Loader forClass(java.lang.Class<?> klass)

Create a loader using the ClassLoader of the given class

Parameters:

klass - the class whose ClassLoader to use

Returns:

a Loader

load

public java.lang.Class<?> load(java.lang.String name)

Load the given class.

This only delegates to the underlying class loader, but returns null instead of throwing a ClassNotFoundException exception.

Returns:

the class if load succeed, null otherwise.

apply

public java.lang.Class<?> apply(java.lang.String name)

Just delegate to load(java.lang.String) to implement Function.

Specified by:

apply in interface java.util.function.Function<java.lang.String,java.lang.Class<?>>

See Also:

load(java.lang.String)