com.hp.hpl.jena.reasoner
Class FinderUtil

java.lang.Object
  com.hp.hpl.jena.reasoner.FinderUtil

public class FinderUtil

extends java.lang.Object

Some simple helper methods used when working with Finders, particularly to compose them into cascade sequences. The cascades are designed to cope with null Finders as well.

Version:

$Revision: 1.5 $ on $Date: 2003/06/23 15:49:41 $

Author:

Dave Reynolds

Constructor Summary

FinderUtil()

Method Summary

static Finder	cascade(Finder first, Finder second) Create a continuation object which is a cascade of two continuation objects.
static Finder	cascade(Finder first, Finder second, Finder third) Create a continuation object which is a cascade of three continuation objects.
static Finder	cascade(Finder first, Finder second, Finder third, Finder fourth) Create a continuation object which is a cascade of four continuation objects.

Methods inherited from class java.lang.Object

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

Constructor Detail

FinderUtil

public FinderUtil()

Method Detail

cascade

public static Finder cascade(Finder first,
                             Finder second)

Create a continuation object which is a cascade of two continuation objects.

Parameters:

first - the first Graph/Finder to try

second - the second Graph/Finder to try

cascade

public static Finder cascade(Finder first,
                             Finder second,
                             Finder third)

Create a continuation object which is a cascade of three continuation objects.

Parameters:

first - the first Graph/Finder to try

second - the second Graph/Finder to try

third - the third Graph/Finder to try

cascade

public static Finder cascade(Finder first,
                             Finder second,
                             Finder third,
                             Finder fourth)

Create a continuation object which is a cascade of four continuation objects.

Parameters:

first - the first Graph/Finder to try

second - the second Graph/Finder to try

third - the third Graph/Finder to try

fourth - the third Graph/Finder to try