org.abora.gold.filter
Class Joint

java.lang.Object
  |
  +--org.abora.gold.java.AboraHeaper
        |
        +--org.abora.gold.xpp.basic.Heaper
              |
              +--org.abora.gold.filter.Joint

Direct Known Subclasses:

PropJoint

public class Joint

extends Heaper

Joints are used to prune searches through trees of Regions. Each Joint summarizes the
Joints and Regions at its node and its children using their intersection and union. If you
maintain this information at each each node in the tree, then you can search for Regions
in the tree efficiently using Filter::pass() to adapt the search criteria to the contents
of the subtree. See also Filter::pass(Joint *).

Field Summary

protected XnRegion	myIntersected
protected XnRegion	myUnioned

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

Joint(Rcvr receiver)

Joint(XnRegion unioned, XnRegion intersected)

Method Summary

int	actualHashForEqual()
XnRegion	intersected() The intersection of the regions at all child nodes in the tree.
boolean	isEqual(Heaper other) Return true if the two objects are equal.
Joint	join(Joint other) A Joint that is a parent of this Joint and the given one.
static Heaper	make(CoordinateSpace space) An empty Joint in the given coordinate space.
static Heaper	make(Joint left, Joint right) A joint that is a parent of the two given Joints.
static Heaper	make(java.lang.Object something)
static Heaper	make(java.lang.Object something, java.lang.Object other)
static Heaper	make(ScruSet subs) A Joint that is a parent of all of the Joints in the set.
static Heaper	make(XnRegion both) A Joint containing only the given region.
static Heaper	make(XnRegion unioned, XnRegion intersected) A Joint with the given union and intersection regions.
void	printOn(java.io.PrintWriter oo)
void	sendSelfTo(Xmtr xmtr) do nothing
XnRegion	unioned() The union of the regions at all child nodes in the tree.
Joint	with(XnRegion region) A Joint that is a parent of this one and the given region.

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, makeClassTable, makeFillTable, makeRequestTable, mangle, markChildren, markCount, markInstances, mayBecome, mayBecomeAnySubclassOf, new1, newX, nonCopyVariables, notWorking, pack, packageClasses, packagingCategory, parseExportName, passe, pointerToStaticMember, pointerToStaticMember, pointerToVirtualMember, preorderMax, preorderNumber, 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

myUnioned

protected XnRegion myUnioned

myIntersected

protected XnRegion myIntersected

Constructor Detail

Joint

public Joint(XnRegion unioned,
             XnRegion intersected)

Joint

public Joint(Rcvr receiver)

Method Detail

printOn

public void printOn(java.io.PrintWriter oo)

Overrides:

printOn in class Heaper

intersected

public XnRegion intersected()

The intersection of the regions at all child nodes in the tree.

join

public Joint join(Joint other)

A Joint that is a parent of this Joint and the given one.

unioned

public XnRegion unioned()

The union of the regions at all child nodes in the tree.

with

public Joint with(XnRegion region)

A Joint that is a parent of this one and the given region.

actualHashForEqual

public int 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

sendSelfTo

public void sendSelfTo(Xmtr xmtr)

Description copied from class: Heaper

do nothing

Overrides:

sendSelfTo in class Heaper

make

public static Heaper make(CoordinateSpace space)

An empty Joint in the given coordinate space.

make

public static Heaper make(Joint left,
                          Joint right)

A joint that is a parent of the two given Joints.

make

public static Heaper make(ScruSet subs)

A Joint that is a parent of all of the Joints in the set.

make

public static Heaper make(XnRegion both)

A Joint containing only the given region.

make

public static Heaper make(XnRegion unioned,
                          XnRegion intersected)

A Joint with the given union and intersection regions.

make

public static Heaper make(java.lang.Object something)

make

public static Heaper make(java.lang.Object something,
                          java.lang.Object other)