org.ptolemy.classloading.osgi

Class PackageBasedModelElementClassProvider

java.lang.Object

org.ptolemy.classloading.osgi.PackageBasedModelElementClassProvider

All Implemented Interfaces:

ModelElementClassProvider

public class PackageBasedModelElementClassProvider
extends java.lang.Object
implements ModelElementClassProvider

A package-based provider that gets a list of classes to be provided in its constructor.

Since:

Ptolemy II 11.0

Version:

$Id$

Author:

erwinDL

Pt.AcceptedRating:

Red (reviewmoderator)

Pt.ProposedRating:

Red (erwinDL)

Constructor Summary

Constructors

Constructor and Description
PackageBasedModelElementClassProvider(java.lang.ClassLoader classLoader, java.lang.String... packageNames) Create a package-based model element class provider.

Method Summary

Modifier and Type	Method and Description
java.lang.Class<? extends NamedObj>	getClass(java.lang.String className, VersionSpecification versionSpec) Return the requested class for the requested version (if specified).

Methods inherited from class java.lang.Object

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

Constructor Detail

PackageBasedModelElementClassProvider

public PackageBasedModelElementClassProvider(java.lang.ClassLoader classLoader,
                                             java.lang.String... packageNames)

Create a package-based model element class provider.

Parameters:

classLoader - The class loader.

packageNames - The package names.

Method Detail

getClass

public java.lang.Class<? extends NamedObj> getClass(java.lang.String className,
                                                    VersionSpecification versionSpec)
                                             throws java.lang.ClassNotFoundException

Return the requested class for the requested version (if specified).

If this provider doesn't have this class available, it should throw a ClassNotFoundException. (Optionally, it could also just return null, for those dvp-ers who don't like exceptions. ;-) )

Specified by:

getClass in interface ModelElementClassProvider

Parameters:

className - typically a fully qualified Java class name. Mandatory non-null.

versionSpec - optional constraint on desired version for the class that must be provided. If null, no version constraint is imposed.

Returns:

the concrete class of the NamedObj matching the given className.

Throws:

java.lang.ClassNotFoundException - if this provider can not provide the requested class for the requested version (if specified).

See Also:

VersionSpecification