Package weka.core

Class ClassDiscovery

java.lang.Object
weka.core.ClassDiscovery
All Implemented Interfaces:
RevisionHandler
public class ClassDiscovery extends Object implements RevisionHandler
This class is used for discovering classes that implement a certain interface or a derived from a certain class.
Version:
$Revision: 14293 $
Author:
FracPete (fracpete at waikato dot ac dot nz)
See Also:

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static class 
    ClassDiscovery.StringCompare
    compares two strings.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final boolean
    VERBOSE
    whether to output some debug information.

  • Constructor Summary

    Constructors
    Constructor
    Description
    ClassDiscovery()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static void
    clearCache()
    clears the cache for class/classnames queries.
    static void
    clearClassCache()
    Calls clearCache() and resets the cache of classes on the classpath (i.e.
    static Vector<String>
    find(Class<?> cls, String pkgname)
    Checks the given package for classes that inherited from the given class, in case it's a class, or implement this class, in case it's an interface.
    static Vector<String>
    find(Class<?> cls, String[] pkgnames)
    Checks the given packages for classes that inherited from the given class, in case it's a class, or implement this class, in case it's an interface.
    static ArrayList<String>
    find(String matchText)
    Find all classes that have the supplied matchText String in their suffix.
    static Vector<String>
    find(String classname, String pkgname)
    Checks the given package for classes that inherited from the given class, in case it's a class, or implement this class, in case it's an interface.
    static Vector<String>
    find(String classname, String[] pkgnames)
    Checks the given packages for classes that inherited from the given class, in case it's a class, or implement this class, in case it's an interface.
    static Vector<String>
    findPackages()
    Lists all packages it can find in the classpath.
    String
    getRevision()
    Returns the revision string.
    static void
    main(String[] args)
    Possible calls: weka.core.ClassDiscovery <packages>
    Prints all the packages in the current classpath weka.core.ClassDiscovery <classname> <packagename(s)>
    Prints the classes it found.

    Methods inherited from class java.lang.Object

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

  • Field Details

    • VERBOSE

      public static final boolean VERBOSE
      whether to output some debug information.
      See Also:

  • Constructor Details

    • ClassDiscovery

      public ClassDiscovery()

  • Method Details

    • find

      public static Vector<String> find(String classname, String[] pkgnames)
      Checks the given packages for classes that inherited from the given class, in case it's a class, or implement this class, in case it's an interface.
      Parameters:
      classname - the class/interface to look for
      pkgnames - the packages to search in
      Returns:
      a list with all the found classnames

    • find

      public static Vector<String> find(String classname, String pkgname)
      Checks the given package for classes that inherited from the given class, in case it's a class, or implement this class, in case it's an interface.
      Parameters:
      classname - the class/interface to look for
      pkgname - the package to search in
      Returns:
      a list with all the found classnames

    • find

      public static Vector<String> find(Class<?> cls, String[] pkgnames)
      Checks the given packages for classes that inherited from the given class, in case it's a class, or implement this class, in case it's an interface.
      Parameters:
      cls - the class/interface to look for
      pkgnames - the packages to search in
      Returns:
      a list with all the found classnames

    • find

      public static ArrayList<String> find(String matchText)
      Find all classes that have the supplied matchText String in their suffix.
      Parameters:
      matchText - the text to match
      Returns:
      an array list of matching fully qualified class names.

    • find

      public static Vector<String> find(Class<?> cls, String pkgname)
      Checks the given package for classes that inherited from the given class, in case it's a class, or implement this class, in case it's an interface.
      Parameters:
      cls - the class/interface to look for
      pkgname - the package to search in
      Returns:
      a list with all the found classnames

    • findPackages

      public static Vector<String> findPackages()
      Lists all packages it can find in the classpath.
      Returns:
      a list with all the found packages

    • clearCache

      public static void clearCache()
      clears the cache for class/classnames queries.

    • clearClassCache

      public static void clearClassCache()
      Calls clearCache() and resets the cache of classes on the classpath (i.e. forces a rescan of the classpath).

    • getRevision

      public String getRevision()
      Returns the revision string.
      Specified by:
      getRevision in interface RevisionHandler
      Returns:
      the revision

    • main

      public static void main(String[] args)
      Possible calls:
      • weka.core.ClassDiscovery <packages>
        Prints all the packages in the current classpath
      • weka.core.ClassDiscovery <classname> <packagename(s)>
        Prints the classes it found.
      Parameters:
      args - the commandline arguments