Class: LookupKey

• Inheritance
• Description
• Class protocol
  • instance creation
• Instance protocol
  • accessing
  • comparing
  • printing & storing

Inheritance:

   Object
   |
   +--Magnitude
      |
      +--LookupKey
         |
         +--Association

Package:

stx:libbasic

Category:

Collections-Support

Version:

rev: 1.14 date: 2017/02/22 18:01:54

user: cg

file: LookupKey.st directory: libbasic

module: stx stc-classLibrary: libbasic

Author:

Claus Gittinger

Description:

LookupKey has been extracted from Association for ST-80 compatibility.
This class is currently not used directly.

[Instance variables:]

    key             <Object>        the key

Class protocol:

 key: aKey

return a new instance.

Instance protocol:

 key

return the key of the receiver

 key: anObject

set the key of the receiver to be anObject.
Return the receiver

 < aKey

return true, if the receiver's Key is less than the argument's key.
The argument must be a kind of lookupKey

 = aLookupKey

return true if the receiver's key equals the argument's key.
The argument must be a kind of lookupKey.

 > aKey

return true, if the receiver's Key is greater than the argument's key.
The argument must be a kind of lookupKey

 hash

return an integer useful for hashing on the receiver;
redefined since = is redefined here.

 displayOn: aGCOrStream

Compatibility
append a printed desription on some stream (Dolphin, Squeak)
OR:
display the receiver in a graphicsContext at 0@0 (ST80).
This method allows for any object to be displayed in some view
(although the fallBack is to display its printString ...)

 printOn: aStream

append a user printed representation of the receiver to aStream.
The format is suitable for a human - not meant to be read back.