- java.lang.Object
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- java.rmi.server.RMIClassLoaderSpi
 
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 public abstract class RMIClassLoaderSpi extends Object RMIClassLoaderSpiis the service provider interface forRMIClassLoader. In particular, anRMIClassLoaderSpiinstance provides an implementation of the following static methods ofRMIClassLoader:- RMIClassLoader.loadClass(URL,String)
- RMIClassLoader.loadClass(String,String)
- RMIClassLoader.loadClass(String,String,ClassLoader)
- RMIClassLoader.loadProxyClass(String,String[],ClassLoader)
- RMIClassLoader.getClassLoader(String)
- RMIClassLoader.getClassAnnotation(Class)
 RMIClassLoaderfor a description of how a provider instance is chosen.- Since:
- 1.4
- See Also:
- RMIClassLoader
 
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Constructor SummaryConstructors Constructor Description RMIClassLoaderSpi()
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Method SummaryAll Methods Instance Methods Abstract Methods Modifier and Type Method Description abstract StringgetClassAnnotation(Class<?> cl)Provides the implementation forRMIClassLoader.getClassAnnotation(Class).abstract ClassLoadergetClassLoader(String codebase)Provides the implementation forRMIClassLoader.getClassLoader(String).abstract Class<?>loadClass(String codebase, String name, ClassLoader defaultLoader)Provides the implementation forRMIClassLoader.loadClass(URL,String),RMIClassLoader.loadClass(String,String), andRMIClassLoader.loadClass(String,String,ClassLoader).abstract Class<?>loadProxyClass(String codebase, String[] interfaces, ClassLoader defaultLoader)Provides the implementation forRMIClassLoader.loadProxyClass(String,String[],ClassLoader).
 
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Method Detail- 
loadClasspublic abstract Class<?> loadClass(String codebase, String name, ClassLoader defaultLoader) throws MalformedURLException, ClassNotFoundException Provides the implementation forRMIClassLoader.loadClass(URL,String),RMIClassLoader.loadClass(String,String), andRMIClassLoader.loadClass(String,String,ClassLoader). Loads a class from a codebase URL path, optionally using the supplied loader. Typically, a provider implementation will attempt to resolve the named class using the givendefaultLoader, if specified, before attempting to resolve the class from the codebase URL path.An implementation of this method must either return a class with the given name or throw an exception. - Parameters:
- codebase- the list of URLs (separated by spaces) to load the class from, or- null
- name- the name of the class to load
- defaultLoader- additional contextual class loader to use, or- null
- Returns:
- the Classobject representing the loaded class
- Throws:
- MalformedURLException- if- codebaseis non-- nulland contains an invalid URL, or if- codebaseis- nulland a provider-specific URL used to load classes is invalid
- ClassNotFoundException- if a definition for the class could not be found at the specified location
 
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loadProxyClasspublic abstract Class<?> loadProxyClass(String codebase, String[] interfaces, ClassLoader defaultLoader) throws MalformedURLException, ClassNotFoundException Provides the implementation forRMIClassLoader.loadProxyClass(String,String[],ClassLoader). Loads a dynamic proxy class (seeProxythat implements a set of interfaces with the given names from a codebase URL path, optionally using the supplied loader.An implementation of this method must either return a proxy class that implements the named interfaces or throw an exception. - Parameters:
- codebase- the list of URLs (space-separated) to load classes from, or- null
- interfaces- the names of the interfaces for the proxy class to implement
- defaultLoader- additional contextual class loader to use, or- null
- Returns:
- a dynamic proxy class that implements the named interfaces
- Throws:
- MalformedURLException- if- codebaseis non-- nulland contains an invalid URL, or if- codebaseis- nulland a provider-specific URL used to load classes is invalid
- ClassNotFoundException- if a definition for one of the named interfaces could not be found at the specified location, or if creation of the dynamic proxy class failed (such as if- Proxy.getProxyClass(ClassLoader,Class[])would throw an- IllegalArgumentExceptionfor the given interface list)
 
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getClassLoaderpublic abstract ClassLoader getClassLoader(String codebase) throws MalformedURLException Provides the implementation forRMIClassLoader.getClassLoader(String). Returns a class loader that loads classes from the given codebase URL path.If there is a security manger, its checkPermissionmethod will be invoked with aRuntimePermission("getClassLoader")permission; this could result in aSecurityException. The implementation of this method may also perform further security checks to verify that the calling context has permission to connect to all of the URLs in the codebase URL path.- Parameters:
- codebase- the list of URLs (space-separated) from which the returned class loader will load classes from, or- null
- Returns:
- a class loader that loads classes from the given codebase URL path
- Throws:
- MalformedURLException- if- codebaseis non-- nulland contains an invalid URL, or if- codebaseis- nulland a provider-specific URL used to identify the class loader is invalid
- SecurityException- if there is a security manager and the invocation of its- checkPermissionmethod fails, or if the caller does not have permission to connect to all of the URLs in the codebase URL path
 
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getClassAnnotationpublic abstract String getClassAnnotation(Class<?> cl) Provides the implementation forRMIClassLoader.getClassAnnotation(Class). Returns the annotation string (representing a location for the class definition) that RMI will use to annotate the class descriptor when marshalling objects of the given class.- Parameters:
- cl- the class to obtain the annotation for
- Returns:
- a string to be used to annotate the given class when
 it gets marshalled, or null
- Throws:
- NullPointerException- if- clis- null
 
 
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