gishur.graph.core
Class WeightComparitor
java.lang.Object
|
+--gishur.graph.core.WeightComparitor
- All Implemented Interfaces:
- Comparitor
- public class WeightComparitor
- extends java.lang.Object
- implements Comparitor
A class which compares Edges
according to their weight. The weight
is defined by a property of the Edges
which must be given as a
constructor argument. The weight may be of any primitive nubmer type or of type
java.lang.Number
. A default value can be set by construction which
will be used when the weight property is not set at an Edge
.
- Version:
- 1.0
- Author:
- Christoph Sachse
Constructor Summary |
WeightComparitor(java.lang.String weightProperty,
double def)
Constructor accepting a double -value as default. |
WeightComparitor(java.lang.String weightProperty,
java.lang.Double def)
Constructor accepting a Double default object which can be null
(in this case, invalid weight properties will lead to an exception). |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
WeightComparitor
public WeightComparitor(java.lang.String weightProperty,
java.lang.Double def)
- Constructor accepting a
Double
default object which can be null
(in this case, invalid weight properties will lead to an exception).
- Parameters:
weightProperty
- the property of the Edges
which provides the
weightdef
- the default value
WeightComparitor
public WeightComparitor(java.lang.String weightProperty,
double def)
- Constructor accepting a
double
-value as default.
- Parameters:
weightProperty
- the property of the Edges
which provides the
weightdef
- the default value
compare
public short compare(java.lang.Object o1,
java.lang.Object o2)
Comparitor.compare(java.lang.Object, java.lang.Object)
-method which accepts only two java.lang.Objects
.
For this Comparitor
, these objects must be of the type KeyValueHolder
and their keys must be Edges
. Otherwise, a CompareException
will
be thrown.
- Specified by:
compare
in interface Comparitor
- Parameters:
o1,o2
- the java.lang.Objects
to compare, must be KeyValueHolder
s
with Edges
as keys- Throws:
CompareException,
- if this Comparitor
has a bad weight type (see MSTKruskal
)
or if the given objects are no KeyValueHolder
s with Edges
as keys