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/**
* Exception generated when two objects cannot be compared
*
* Such cases happen when an object does not implement the Comparable
* interface or when the comparison produces a ClassCastException
*/
public class NotComparableException extends Exception{
public NotComparableException(Object a, Object b){
super( "objects of class " + a.getClass().getName() +
" and " + b.getClass().getName() + " are not comparable" ) ;
}
public NotComparableException( Object o){
this( o.getClass().getName() ) ;
}
public NotComparableException( Class cl){
this( cl.getName() ) ;
}
public NotComparableException( String type ){
super( "class " + type + " does not implement java.util.Comparable" ) ;
}
}
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