org.keycloak.connections.jpa.entityprovider.ProxyClassLoader クラス

org.keycloak.connections.jpa.entityprovider.ProxyClassLoader の継承関係図

org.keycloak.connections.jpa.entityprovider.ProxyClassLoader 連携図

公開メンバ関数
	ProxyClassLoader (Collection< Class<?>> classes, ClassLoader parentClassLoader)
	ProxyClassLoader (Collection< Class<?>> classes)
Class<?>	loadClass (String name) throws ClassNotFoundException
URL	getResource (String name)

非公開メンバ関数
void	init (Collection< Class<?>> classes)

非公開変数類
Set< ClassLoader >	classloaders

詳解

著者

Erik Mulder

Classloader implementation to facilitate loading classes and resources from a collection of other classloaders. Effectively it forms a proxy to one or more other classloaders.

The way it works:

• Get all (unique) classloaders from all provided classes
• For each class or resource that is 'requested':
  • First try all provided classloaders and if we have a match, return that
  • If no match was found: proceed with 'normal' classloading in 'current classpath' scope

In this particular context: only loadClass and getResource overrides are needed, since those are the methods that a classloading and resource loading process will need.

構築子と解体子

ProxyClassLoader() [1/2]

org.keycloak.connections.jpa.entityprovider.ProxyClassLoader.ProxyClassLoader ( Collection< Class<?>>  classes, ClassLoader  parentClassLoader  )

inline

                                                                                         {
        super(parentClassLoader);
        init(classes);
    }

ProxyClassLoader() [2/2]

org.keycloak.connections.jpa.entityprovider.ProxyClassLoader.ProxyClassLoader ( Collection< Class<?>>  classes )

inline

                                                          {
        init(classes);
    }

関数詳解

getResource()

URL org.keycloak.connections.jpa.entityprovider.ProxyClassLoader.getResource ( String  name )

inline

                                        {
        for (ClassLoader classloader : classloaders) {
            URL resource = classloader.getResource(name);
            if (resource != null) {
                return resource;
            }
            // Resource == null means not found, so let the next one try.
        }
        // We could not get the resource from the proxy class loaders, so proceed with 'normal' behavior.
        return super.getResource(name);
    }

init()

void org.keycloak.connections.jpa.entityprovider.ProxyClassLoader.init ( Collection< Class<?>>  classes )

inlineprivate

                                                    {
        classloaders = new HashSet<>();
        for (Class<?> clazz : classes) {
            classloaders.add(clazz.getClassLoader());
        }
    }

loadClass()

Class<?> org.keycloak.connections.jpa.entityprovider.ProxyClassLoader.loadClass ( String  name ) throws ClassNotFoundException

inline

                                                                         {
        for (ClassLoader classloader : classloaders) {
            try {
                return classloader.loadClass(name);
            } catch (ClassNotFoundException e) {
                // This particular class loader did not find the class. It's expected behavior that
                // this can happen, so we'll just ignore the exception and let the next one try.
            }
        }
        // We did not find the class in the proxy class loaders, so proceed with 'normal' behavior.
        return super.loadClass(name);
    }

メンバ詳解

classloaders

Set<ClassLoader> org.keycloak.connections.jpa.entityprovider.ProxyClassLoader.classloaders

private

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このクラス詳解は次のファイルから抽出されました:

• D:/AppData/doxygen/keycloak/src/keycloak/src/main/java/org/keycloak/connections/jpa/entityprovider/ProxyClassLoader.java