org.abora.gold.collection.sets
Class SetAccumulator

java.lang.Object
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  +--org.abora.gold.java.AboraHeaper
        |
        +--org.abora.gold.xpp.basic.Heaper
              |
              +--org.abora.gold.collection.steppers.Accumulator
                    |
                    +--org.abora.gold.collection.sets.SetAccumulator

public class SetAccumulator

extends Accumulator

A SetAccumulator accumulates a bunch of objects and then makes an ImmuSet containing all
the accumulated objects. Several people have observed that a SetAccumulator doesn''t buy
you much because instead you could just store into a MuSet. While this is true (and is in
fact how SetAccumulator is trivially implemented), my feeling is that if what a loop is
doing is enumerating a bunch of elements from which a Set is to be formed, using a
SetAccumulator in the loops says this more clearly to readers of the code.

Field Summary

protected MuSet

muSet

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

SetAccumulator()

SetAccumulator(Rcvr receiver)

SetAccumulator(ScruSet initialSet)

Method Summary

Accumulator	copy() Return a new Accumulator just like the current one, except that from now on they accumulate separately
ImmuSet	get()
static Heaper	make() Make a SetAccumulator which starts out with no elements accumulated
static Heaper	make(ScruSet initialSet) Make a new SetAccumulator in which all the current elements of initialSet are already accumulated. Future changes to initialSet have no effect on the accumulator.
void	sendSelfTo(Xmtr xmtr) do nothing
void	step(Heaper someObj) Accumulate a new object into the Accumulator
Heaper	value() Return the object that results from accumulating all those objects

Methods inherited from class org.abora.gold.collection.steppers.Accumulator

actualHashForEqual, isEqual, ptrArray

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, isEqual, 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, 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

Field Detail

muSet

protected MuSet muSet

Constructor Detail

SetAccumulator

public SetAccumulator()

SetAccumulator

public SetAccumulator(ScruSet initialSet)

SetAccumulator

public SetAccumulator(Rcvr receiver)

Method Detail

step

public void step(Heaper someObj)

Description copied from class: Accumulator

Accumulate a new object into the Accumulator

Overrides:

step in class Accumulator

value

public Heaper value()

Description copied from class: Accumulator

Return the object that results from accumulating all those objects

Overrides:

value in class Accumulator

copy

public Accumulator copy()

Description copied from class: Accumulator

Return a new Accumulator just like the current one, except that
from now on they accumulate separately

Overrides:

copy in class Accumulator

get

public ImmuSet get()

sendSelfTo

public void sendSelfTo(Xmtr xmtr)

Description copied from class: Heaper

do nothing

Overrides:

sendSelfTo in class Heaper

make

public static Heaper make()

Make a SetAccumulator which starts out with no elements accumulated

make

public static Heaper make(ScruSet initialSet)

Make a new SetAccumulator in which all the current elements of initialSet are already
accumulated.
Future changes to initialSet have no effect on the accumulator.