charger.obj

Class Relation

Object

charger.obj.GraphObject

charger.obj.GNode

charger.obj.Relation

public class Relation
extends GNode

Implements the conceptual relation construct.

Author:

Harry S. Delugach ( delugach@uah.edu ) Copyright (c) 1998-2020 by Harry S. Delugach.

Nested Class Summary

Nested classes/interfaces inherited from class charger.obj.GraphObject

GraphObject.Kind, GraphObject.ObjectIDComparator

Field Summary

Fields inherited from class charger.obj.GNode

borderOutlineWidth, dashpattern, descriptors, mark, myedges, showBoringDebugInfoFont, typeLabel

Fields inherited from class charger.obj.GraphObject

backColor, defaultDim, defaultSelectColor, defaultWrapColumns, defaultWrapLabels, displayRect3D, foreColor, highlightColor, history, isSelected, labelFont, myKind, objectID, objectMargin, ownerGraph, TerritorialLimit, textLabel, textLabelLowerLeftPt

Constructor Summary

Constructors

Constructor and Description
Relation() Instantiates a default relation with label "link".

Method Summary

Modifier and Type	Method and Description
boolean	commitToKnowledgeBase(KnowledgeBase kb) /** Perform whatever activities are required for this concept to be committed to a knowledge base.
void	draw(Graphics2D g, boolean printing) Draws a relation on the given graphics context.
void	drawBorder(Graphics2D g, Color borderColor) Highlights the border of the object
protected void	finalize()
Shape	getShape() Obtain the Shape object that represents the selectable region of this object.
void	setTextLabel(String label) Returns the CGIF string corresponding to this relation, including input,output arcs.
boolean	UnCommitFromKnowledgeBase(KnowledgeBase kb) Perform whatever activities are required for this concept to be committed to a knowledge base.

Methods inherited from class charger.obj.GNode

abandonObject, adjustEdges, attachGEdge, CGIFStringGNodeEdges, clearDescriptors, deleteGEdge, drawActivated, drawDebuggingInfo, getDisplayRect, getEdges, getLinkedNodes, getLinkedNodes, getSize, getTypeDescriptor, getTypeDescriptors, getTypeLabel, isActive, isChanged, setActive, setCenter, setCenter, setChanged, setTypeDescriptor, setTypeDescriptors, setTypeLabel, setTypeLabel

Methods inherited from class charger.obj.GraphObject

addHistoryRecord, adjustCustomDisplayRect, findDominantContext, forceMove, forgetObject, getBestFontMetrics, getCenter, getColor, getDepth, getDim, getDisplayRect3D, getHistory, getLabelFont, getMinimumContentSize, getObjectLocator, getOutermostGraph, getOwnerFrame, getOwnerGraph, getShapeForDrawing, getTextLabel, getTextLabelSize, getUpperLeft, getWrapColumns, getWrapLabels, isNegated, isNegativelyNested, listToString, listToStringXML, putInCorrectContext, putInCorrectContext, resizeIfNecessary, resizeIfNecessary, selfCleanup, setBackground, setCenterOnly, setColor, setColor, setDepth, setDim, setDim, setDisplayRect, setDisplayRect, setDisplayRect3D, setForeground, setLabelFont, setNegated, setOwnerGraph, setTextLabel, setTextLabel, setUpperLeft, setUpperLeft, toString, unCommitFromKnowledgeBase

Methods inherited from class Object

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

Constructor Detail

Relation

public Relation()

Instantiates a default relation with label "link".

Method Detail

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class GNode

Throws:

Throwable

getShape

public Shape getShape()

Description copied from class: GraphObject

Obtain the Shape object that represents the selectable region of this object.

Specified by:

getShape in class GraphObject

Returns:

the Shape for this object, with appropriate dimensions, etc.

See Also:

GraphObject.getShape()

draw

public void draw(Graphics2D g,
                 boolean printing)

Draws a relation on the given graphics context. Draws the oval, label, shadows (if any).

Overrides:

draw in class GNode

Parameters:

g - graphics context on which to draw

printing - (ignored; appears for consistency only)

drawBorder

public void drawBorder(Graphics2D g,
                       Color borderColor)

Description copied from class: GraphObject

Highlights the border of the object

Overrides:

drawBorder in class GNode

Parameters:

g - Graphics context on which the object is to be rendered

borderColor - the color to draw

setTextLabel

public void setTextLabel(String label)

Returns the CGIF string corresponding to this relation, including input,output arcs.

Overrides:

setTextLabel in class GraphObject

Parameters:

label - new text label (erases the old text label)

commitToKnowledgeBase

public boolean commitToKnowledgeBase(KnowledgeBase kb)

/** Perform whatever activities are required for this concept to be committed to a knowledge base. Adds the type label to the type hierarchy if it is not already there.

Overrides:

commitToKnowledgeBase in class GraphObject

Parameters:

kb -

UnCommitFromKnowledgeBase

public boolean UnCommitFromKnowledgeBase(KnowledgeBase kb)

Perform whatever activities are required for this concept to be committed to a knowledge base. Adds the type label to the type hierarchy.

Parameters:

kb -