org.abora.gold.spaces.basic
Class Position

java.lang.Object
  |
  +--org.abora.gold.java.AboraHeaper
        |
        +--org.abora.gold.xpp.basic.Heaper
              |
              +--org.abora.gold.spaces.basic.Position

Direct Known Subclasses:

FilterPosition, ID, IntegerPos, RealPos, Sequence, Tuple, UnOrdered

public class Position

extends Heaper

This is the superclass of all positions of coordinate spaces. Each individual position is
specific to some one coordinate space. Positions themselves don''t have much behavior, as
most of the interesting aspects of coordinate spaces are defined in the other objects in
terms of positions. Positions do have their own native ordering messages, but for most
purposes it''s probably better to compare them using an appropriate OrderSpec.

Field Summary

Fields inherited from class org.abora.gold.xpp.basic.Heaper

AllBlasts, BecomeMap, GarbageCount, InGC, InitializedClasses, InitializingClasses, LastMemory, NextClientRequestNumber, NotOneElementSignal, PackageTable, PromiseNameTable, StringHashSBoxes

Fields inherited from class org.abora.gold.java.AboraHeaper

ActiveClubs, CurrentAuthor, CurrentBertCanopyCache, CurrentBertCrum, CurrentChunk, CurrentGrandMap, CurrentKeyMaster, CurrentPacker, CurrentSensorCanopyCache, CurrentServer, CurrentSession, CurrentSessions, CurrentTrace, InitialEditClub, InitialOwner, InitialReadClub, InitialSponsor, InsideTransactionFlag

Constructor Summary

Position()

Method Summary

int	actualHashForEqual() since we redefine equal, subclasses had better redefine actualHashForEqual
XnRegion	asRegion() Essential.
CoordinateSpace	coordinateSpace() Essential.
static void	info() {XuRegion CLIENT} asRegion {CoordinateSpace CLIENT} coordinateSpace
boolean	isAfterOrEqual(Position other) OBSOLETE.
boolean	isEqual(Heaper other) Return true if the two objects are equal.
boolean	isGE(Position other) OBSOLETE.

Methods inherited from class org.abora.gold.xpp.basic.Heaper

abstractDeclarationFor, abstractTypeFor, addMethodAttributeToInOf, addPackage, addPackageCategory, allClientProtocolOn, argumentTypesFor, arrow, blast, blast, BLAST, cachePromiseNameTable, cachePromiseNameTableIn, canYouBecome, cast, cleanPromiseClasses, cleanupGarbage, clientClassesDo, clientFunctionsOn, clientMethodsOn, clientProtocol, clientProtocolDo, clientProtocolOn, clientProtocolOn, collectibleClasses, compare, compileClientSubclasses, compileConstantPromiseMethods, compileCreateFromRcvr, compileEQ, compileGeneratedClassMethod, compileGeneratedMethod, compileHook, compilePromise, compilePromiseDefaultMethods, compilePromiseFluidDeclarations, compilePromiseHandlers, compilePromiseMethods, compileRequestCreateMsgInArguments, compileRequestEvaluateMsgInReturningArguments, compileRPCSpecialistEvaluateMsgForReturningArguments, compileSendSelfTo, compileSendSelfToSendHook, compileStubbleMethods, compileSubclassStubbleMethods, computeMangle, computePreorder, constantTypeValue, convert, convertCopyDeclarations, convertDeferredDeclarations, convertProxyDeclarations, convertSubclassCopyDeclarations, convertSubclassDeferredDeclarations, convertSubclassProxyDeclarations, copyReferencesToType, create, create, create, create, create, create, create, create, create, create, createRequestClassArguments, definesProxyMethods, delete, deref, destroy, destruct, destructor, enum, enumFlags, equals, exportName, fetchAttribute, fetchPackage, fetchSuperCategory, fileOutClientProtocol, findCategory, findSenderAndReceiverMethods, findTailInto, flushPromiseNameTable, foo, freezeClientClasses, freezeClientProtocol, freezeStProtocol, frozenClasses, garbageCollect, garbageCollectFrom, gcOpportunity, gcOpportunity, generatedCategory, generatePromiseNames, getCategory, getOrMakePackage, getSuperCategory, handlerSignaturesFrom, hash, hashForEqual, hasProxyMethods, info_clientClasses, info_clientSideClasses, info_promiseClasses, info_stProtocol, inGC, initializedClasses, initializingClasses, initPackages, initStringHashSBoxes, inspectPieces, instanceSize, IntegerVar, isByProxy, isConstructed, isDestructed, isEqualOrSubclassOf, isGenerated, isIntType, isKindOf, isRawType, isUnlocked, linkTimeNonInherited, make, makeClassTable, makeFillTable, makeRequestTable, mangle, markChildren, markCount, markInstances, mayBecome, mayBecomeAnySubclassOf, new1, newX, nonCopyVariables, notWorking, pack, packageClasses, packagingCategory, parseExportName, passe, pointerToStaticMember, pointerToStaticMember, pointerToVirtualMember, preorderMax, preorderNumber, printOn, PROBLEM, problems, promiseClass, promiseDefaultValue, promiseName, promiseNameTable, promiseToAbstract, registerPackageCategory, removeGeneratedCode, removeStubbleMethods, removeSubclassGeneratedCode, removeSubclassStubbleMethods, requestProcedure, requestProceduresFrom, returnTypeFor, rootName, scheduleTermination, sendProxyTo, sendSelfTo, serverNameFor, setGC, signal, signals, smalltalkSelector, stClientProtocol, stubbleSelectorTokenReturnsArguments, subclassNonCopyVariables, takeOop, togglePromiseName, togglePromiseOfParse, unimplemented, unmangle, verifyFreeze, wipeStubble

Methods inherited from class org.abora.gold.java.AboraHeaper

asOop, basicInspect, displayString, error, hack, halt, inspect, knownBug, mightNotImplement, REQUIRES, shouldImplement, shouldNotImplement, stubbleForSubclassResponsibility, thingToDo, willNotImplement

Methods inherited from class java.lang.Object

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

Constructor Detail

Position

public Position()

Method Detail

actualHashForEqual

public int actualHashForEqual()

since we redefine equal, subclasses had better redefine actualHashForEqual

Overrides:

actualHashForEqual in class Heaper

isEqual

public boolean isEqual(Heaper other)

Description copied from class: Heaper

Return true if the two objects are equal.

Overrides:

isEqual in class Heaper

asRegion

public XnRegion asRegion()

Essential. A region containing this position as its only element.

coordinateSpace

public CoordinateSpace coordinateSpace()

Essential. The coordinate space this is a position in. This implies that a position
object is only a position in one particular coordinate space.

isAfterOrEqual

public boolean isAfterOrEqual(Position other)

OBSOLETE. Use OrderSpec instead, or non-polymorphic subclass methods.
This must define a full ordering on all positions in the same coordinate space.
As this isn''t possible for some coordinate spaces (e.g. HeaperSpace & FilterSpace), we
may BLAST instead. Therefore this message should eventually get retired -- don't use.
See OrderSpec::follows for the properties a partial order must satisfy. A full ordering
must additionally satisfy: for all a, b; either a->isAfterOrEqual(b) or
b->isAfterOrEqual(a).

isGE

public boolean isGE(Position other)

OBSOLETE. Use the OrderSpec, or non-polymorphic subclass methods.
Defines a transitive partial order; return false if incompatible. See OrderSpec::follows
for the properties a partial order must satisfy. The ordering according to isGE is the
same as the ascending OrderSpec for this coordinate space. It is probably better to use
the OrderSpec than this message.

info

public static void info()

{XuRegion CLIENT} asRegion
{CoordinateSpace CLIENT} coordinateSpace