IEdge

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com.port80.graph
Interface IEdge

All Superinterfaces:: com.port80.util.attr.IAttrTable, IGraphElement

public interface IEdge
extends IGraphElement

Graph edge interface. . Each edge has a name, a head node, a tail node and an attribute table. For directed graph, head is the destination node (one with arrow head) and tail is the source node. . Edges are created and destroyed by EdgeFactory or its derivatives. Creating an edge automatically perform all the book keeping works to check for validity and connect the two vertex (adding the edge to both vertex). If an edge is not valid, EdgeFactory return null. Destroy an edge remove the connections at both vertex. . Attribute registry The EdgeFactory maintain a registry of valid attributes for edges produced by the factory. Clients that invent their own attributes should register the attribute name with the class and check for conflicts during initialization. . No checking for valid attribute name is done when accessing the attribute table.

Method Summary

void clearLayout()


java.util.List findReverseEdges(java.util.List ret)


double getArrowSize()


IVertex getHead()
          The set of all edges, the Set should be considered read only.

IArrow getHeadArrow()


IVertex getOpposite(IVertex node)


IVertex getTail()


IArrow getTailArrow()


Methods inherited from interface com.port80.graph.IGraphElement

getData, getElementTypeName, getName, setData, setName

Methods inherited from interface com.port80.util.attr.IAttrTable

attrKeySet, clearAttrs, getAttr, getAttrAsString, getAttrBool, getAttrBool, getAttrCached, getAttrDouble, getAttrDouble, getAttrFloat, getAttrFloat, getAttrInt, getAttrInt, getAttrLong, getAttrLong, getAttrRegistry, getAttrString, hasAttr, removeAttr, removeUnregisteredAttrs, setAttr, setAttr, setAttr, setAttr, setAttr, setAttr, setAttrFromString

Method Detail

getHead

public IVertex getHead()

The set of all edges, the Set should be considered read only. Add or remove of edges should use method provided by the Edge class.

getTail

public IVertex getTail()

getOpposite

public IVertex getOpposite(IVertex node)

getArrowSize

public double getArrowSize()

getHeadArrow

public IArrow getHeadArrow()

getTailArrow

public IArrow getTailArrow()

findReverseEdges

public java.util.List findReverseEdges(java.util.List ret)

clearLayout

public void clearLayout()