Package weka.core

Class ClassCache

  • All Implemented Interfaces:
    RevisionHandler
    public class ClassCache
extends java.lang.Object
implements RevisionHandler
    A singleton that stores all classes on the classpath.
    Version:
    $Revision: 14791 $
    Author:
    fracpete (fracpete at waikato dot ac dot nz)

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String DEFAULT_PACKAGE
      the key for the default package.
      static boolean VERBOSE
      whether to output some debug information.

    • Constructor Summary

      Constructors 
      Constructor Description
      ClassCache()
      Initializes the cache.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean add​(java.lang.String classname)
      Adds the classname to the cache.
      static java.lang.String cleanUp​(java.lang.String classname)
      Fixes the classname, turns "/" and "\" into "." and removes ".class".
      static java.lang.String extractPackage​(java.lang.String classname)
      Extracts the package name from the (clean) classname.
      java.util.ArrayList<java.lang.String> find​(java.lang.String matchText)
      Find all classes that have the supplied matchText String in their suffix.
      java.util.HashSet<java.lang.String> getClassnames​(java.lang.String pkgname)
      Returns all the classes for the given package.
      java.lang.String getRevision()
      Returns the revision string.
      static void main​(java.lang.String[] args)
      For testing only.
      java.util.Enumeration<java.lang.String> packages()
      Returns all the stored packages.
      boolean remove​(java.lang.String classname)
      Removes the classname from the cache.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • VERBOSE

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

      • DEFAULT_PACKAGE

        public static final java.lang.String DEFAULT_PACKAGE
        the key for the default package.
        See Also:
        Constant Field Values

    • Constructor Detail

      • ClassCache

        public ClassCache()
        Initializes the cache.

    • Method Detail

      • cleanUp

        public static java.lang.String cleanUp​(java.lang.String classname)
        Fixes the classname, turns "/" and "\" into "." and removes ".class".
        Parameters:
        classname - the classname to process
        Returns:
        the processed classname

      • extractPackage

        public static java.lang.String extractPackage​(java.lang.String classname)
        Extracts the package name from the (clean) classname.
        Parameters:
        classname - the classname to extract the package from
        Returns:
        the package name

      • add

        public boolean add​(java.lang.String classname)
        Adds the classname to the cache.
        Parameters:
        classname - the classname, automatically removes ".class" and turns "/" or "\" into "."
        Returns:
        true if adding changed the cache

      • remove

        public boolean remove​(java.lang.String classname)
        Removes the classname from the cache.
        Parameters:
        classname - the classname to remove
        Returns:
        true if the removal changed the cache

      • packages

        public java.util.Enumeration<java.lang.String> packages()
        Returns all the stored packages.
        Returns:
        the package names

      • getClassnames

        public java.util.HashSet<java.lang.String> getClassnames​(java.lang.String pkgname)
        Returns all the classes for the given package.
        Parameters:
        pkgname - the package to get the classes for
        Returns:
        the classes (sorted by name)

      • find

        public java.util.ArrayList<java.lang.String> find​(java.lang.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.

      • getRevision

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

      • main

        public static void main​(java.lang.String[] args)
        For testing only.
        Parameters:
        args - ignored