The Basics of Classes

Similar objects in Rexx are grouped into classes, forming a hierarchy. Rexx gives you a basic class hierarchy to start with. All of the classes in the hierarchy are described in detail in the Open Object Rexx: Reference .

Rexx provides the following classes on all operating systems by default. The classes are depicted in hierarchical order, subclasses get indented under their superclass. If a class can be used for multiple inheritance it gets flagged with (mixin). Classes that inherit from mixin classes will list them in parantheses starting with the word inherit followed by the blank delimited list of inherited mixin classes.

• The Object Class
• • The Alarm Class
  • The AlarmNotification Class ( Mixin Classes )
  • The Array Class (inherit The OrderedCollection Class )
  • The Bag Class (inherit The MapCollection Class The SetCollection Class )
  • The Buffer Class
  • The Class Class
  • The Collection Classes ( Mixin Classes )
  • • The MapCollection Class ( Mixin Classes )
    • The OrderedCollection Class ( Mixin Classes )
    • The SetCollection Class ( Mixin Classes )
  • The Comparable Class ( Mixin Classes )
  • The Comparator Class ( Mixin Classes )
  • • The CaselessColumnComparator Class ( Mixin Classes )
    • The CaselessComparator Class ( Mixin Classes )
    • The CaselessDescendingComparator Class ( Mixin Classes )
    • The ColumnComparator Class ( Mixin Classes )
    • The DescendingComparator Class ( Mixin Classes )
    • The InvertingComparator Class ( Mixin Classes )
    • The NumericComparator Class ( Mixin Classes )
  • The DateTime Class (inherit The Comparable Class The Orderable Class )
  • The Directory Class (inherit The MapCollection Class )
  • • The Properties Class
  • The EventSemaphore Class
  • The File Class (inherit The Comparable Class The Orderable Class )
  • The IdentityTable Class (inherit The MapCollection Class )
  • The InputOutputStream Class ( Mixin Classes ) (inherit The InputStream Class The OutputStream Class )
  • • The Stream Class ( Mixin Classes )
  • The InputStream Class ( Mixin Classes )
  • The List Class (inherit The OrderedCollection Class )
  • The Message Class (inherit The MessageNotification Class The AlarmNotification Class )
  • The MessageNotification Class ( Mixin Classes )
  • The Method Class
  • The Monitor Class
  • The MutableBuffer Class
  • The MutexSemaphore Class
  • The Orderable Class ( Mixin Classes )
  • The OutputStream Class ( Mixin Classes )
  • The Package Class
  • The Pointer Class
  • The Queue Class (inherit The OrderedCollection Class )
  • • The CircularQueue Class
  • The Relation Class (inherit The MapCollection Class )
  • The RexxContext Class
  • The RexxInfo Class
  • The RexxQueue Class
  • The Routine Class
  • The Set Class (inherit The MapCollection Class The SetCollection Class )
  • The StackFrame Class
  • The Stem Class (inherit The MapCollection Class )
  • The String Class (inherit The Comparable Class )
  • The StringTable Class (inherit The MapCollection Class )
  • The Supplier Class
  • • The StreamSupplier Class
  • The Table Class (inherit The MapCollection Class )
  • Ticker Class
  • The TimeSpan Class (inherit The Comparable Class The Orderable Class )
  • Validate Class
  • VariableReference Class
  • The WeakReference Class

Note that there might also be other classes available, depending on the operating system.