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Hibernate's core ORM functionality
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.boot.registry.classloading.spi;
import java.io.InputStream;
import java.lang.reflect.InvocationHandler;
import java.net.URL;
import java.util.Collection;
import java.util.List;
import org.hibernate.service.Service;
import org.hibernate.service.spi.Stoppable;
/**
* A service for interacting with class loaders.
*
* @author Steve Ebersole
*/
public interface ClassLoaderService extends Service, Stoppable {
/**
* Locate a class by name.
*
* @param className The name of the class to locate
* @param The returned class type.
*
* @return The class reference
*
* @throws ClassLoadingException Indicates the class could not be found
*/
public Class classForName(String className);
/**
* Locate a resource by name (classpath lookup).
*
* @param name The resource name.
*
* @return The located URL; may return {@code null} to indicate the resource was not found
*/
public URL locateResource(String name);
/**
* Locate a resource by name (classpath lookup) and gets its stream.
*
* @param name The resource name.
*
* @return The stream of the located resource; may return {@code null} to indicate the resource was not found
*/
public InputStream locateResourceStream(String name);
/**
* Locate a series of resource by name (classpath lookup).
*
* @param name The resource name.
*
* @return The list of URL matching; may return {@code null} to indicate the resource was not found
*/
public List locateResources(String name);
/**
* Discovers and instantiates implementations of the named service contract.
*
* NOTE : the terms service here is used differently than {@link Service}. Instead here we are talking about
* services as defined by {@link java.util.ServiceLoader}.
*
* @param serviceContract The java type defining the service contract
* @param The type of the service contract
*
* @return The ordered set of discovered services.
*/
public Collection loadJavaServices(Class serviceContract);
T generateProxy(InvocationHandler handler, Class... interfaces);
interface Work {
T doWork(ClassLoader classLoader);
}
T workWithClassLoader(Work work);
}