org.fudgemsg.taxon
Class URLTaxonomyResolver

java.lang.Object
  org.fudgemsg.taxon.URLTaxonomyResolver

All Implemented Interfaces:

TaxonomyResolver

Direct Known Subclasses:

RESTfulTaxonomyResolver

public abstract class URLTaxonomyResolver
extends Object
implements TaxonomyResolver

A taxonomy resolver that retrieves a taxonomy from a URL.

A concrete implementation must specify how the URL is constructed. This resolver will cache the taxonomy objects.

Constructor Summary

protected

URLTaxonomyResolver() Creates a new resolver.

Method Summary

protected abstract URL	createTaxonomyURL(short taxonomyId) Returns the URL that the taxonomy corresponding to the ID should be loaded from.
void	reset() Clears the resolver cache.
FudgeTaxonomy	resolveTaxonomy(short taxonomyId) Looks up the taxonomy by ID.

Methods inherited from class java.lang.Object

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

Constructor Detail

URLTaxonomyResolver

protected URLTaxonomyResolver()

Creates a new resolver.

Method Detail

resolveTaxonomy

public FudgeTaxonomy resolveTaxonomy(short taxonomyId)

Description copied from interface: TaxonomyResolver

Looks up the taxonomy by ID.

Specified by:

resolveTaxonomy in interface TaxonomyResolver

Parameters:

taxonomyId - the ID of the taxonomy to look up

Returns:

the taxonomy, null if not found

createTaxonomyURL

protected abstract URL createTaxonomyURL(short taxonomyId)
                                  throws MalformedURLException

Returns the URL that the taxonomy corresponding to the ID should be loaded from.

Parameters:

taxonomyId - the taxonomy ID to locate

Returns:

the URL where the taxonomy is found, not null

Throws:

MalformedURLException - if there is a problem creating the URL, this will be wrapped into a runtime exception

reset

public void reset()

Clears the resolver cache.