edu.uci.ics.jung.algorithms.matrix

Class RealMatrixElementOperations<E>

java.lang.Object

edu.uci.ics.jung.algorithms.matrix.RealMatrixElementOperations<E>

All Implemented Interfaces:

MatrixElementOperations<E>

public class RealMatrixElementOperations<E>
extends Object
implements MatrixElementOperations<E>

Implements the basic matrix operations on double-precision values. Assumes that the edges have a MutableDouble value.

Author:

Joshua O'Madadhain

Constructor Summary

Constructors

Constructor and Description
RealMatrixElementOperations(Map<E,Number> edgeData) Creates an instance using the specified edge values.

Method Summary

Modifier and Type	Method and Description
Number	computePathData(E e1, E e2) If either e1 or e2 is null, the Object reference returned should be null.
Map<E,Number>	getEdgeData() Returns a map from edges to values.
void	mergePaths(E e, Object pathData) If either e or pathData is null, the effect of mergePaths() is implementation-dependent.

Methods inherited from class java.lang.Object

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

Constructor Detail

RealMatrixElementOperations

public RealMatrixElementOperations(Map<E,Number> edgeData)

Creates an instance using the specified edge values.

Method Detail

mergePaths

public void mergePaths(E e,
                       Object pathData)

Description copied from interface: MatrixElementOperations

If either e or pathData is null, the effect of mergePaths() is implementation-dependent.

Specified by:

mergePaths in interface MatrixElementOperations<E>

Parameters:

e - (possibly) existing edge in the output graph which represents a path in the input graph(s)

pathData - data (which represents another path with the same source and destination as e in the input graphs) which is to be merged into e

See Also:

MatrixElementOperations.mergePaths(Object, Object)

computePathData

public Number computePathData(E e1,
                              E e2)

Description copied from interface: MatrixElementOperations

If either e1 or e2 is null, the Object reference returned should be null.

Specified by:

computePathData in interface MatrixElementOperations<E>

Parameters:

e1 - first edge from 2-edge path in input graph(s)

e2 - second edge from 2-edge path in input graph(s)

Returns:

aggregation of data from the edges of the 2-edge path (from source of e1 to destination of e2) comprised of (e1, e2)

See Also:

MatrixElementOperations.computePathData(Object, Object)

getEdgeData

public Map<E,Number> getEdgeData()

Description copied from interface: MatrixElementOperations

Returns a map from edges to values.

Specified by:

getEdgeData in interface MatrixElementOperations<E>

Returns:

the edgeData