org.dspace.app.xmlui.aspect.discovery
Class BrowseFacet

java.lang.Object
  org.apache.cocoon.util.AbstractLogEnabled
      org.apache.cocoon.xml.AbstractXMLProducer
          org.apache.cocoon.xml.AbstractXMLPipe
              org.apache.cocoon.transformation.AbstractTransformer
                  org.dspace.app.xmlui.wing.AbstractWingTransformer
                      org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer
                          org.dspace.app.xmlui.aspect.discovery.BrowseFacet

All Implemented Interfaces:

org.apache.avalon.excalibur.pool.Poolable, org.apache.avalon.excalibur.pool.Recyclable, org.apache.cocoon.caching.CacheableProcessingComponent, org.apache.cocoon.sitemap.SitemapModelComponent, org.apache.cocoon.transformation.Transformer, org.apache.cocoon.xml.XMLPipe, org.apache.cocoon.xml.XMLProducer, org.apache.excalibur.xml.sax.XMLConsumer, DSpaceTransformer, WingTransformer, ContentHandler, LexicalHandler

public class BrowseFacet
extends AbstractDSpaceTransformer
implements org.apache.cocoon.caching.CacheableProcessingComponent

Dynamic browse by page (not used @ the moment)

Author:

Kevin Van de Velde (kevin at atmire dot com), Mark Diggory (markd at atmire dot com), Ben Bosman (ben at atmire dot com)

Field Summary

static String	FACET_FIELD
static String	OFFSET
protected DiscoverQuery	queryArgs Cached query arguments
protected DiscoverResult	queryResults The cache of recently submitted items
protected org.apache.excalibur.source.SourceValidity	validity Cached validity object

Fields inherited from class org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer

context, contextPath, eperson, knot, objectModel, parameters, servletPath, sitemapURI, url

Fields inherited from class org.apache.cocoon.xml.AbstractXMLProducer

contentHandler, EMPTY_CONTENT_HANDLER, lexicalHandler, xmlConsumer

Fields inherited from interface org.apache.cocoon.transformation.Transformer

ROLE

Constructor Summary

BrowseFacet()

Method Summary

void	addBody(Body body)
void	addPageMeta(PageMeta pageMeta) Add a page title and trail links.
Serializable	getKey() Generate the unique caching key.
String[]	getParameterFacetQueries()
protected DiscoverResult	getQueryResponse(DSpaceObject scope) Get the recently submitted items for the given community or collection.
org.apache.excalibur.source.SourceValidity	getValidity() Generate the cache validity object.
void	recycle() Recycle

Methods inherited from class org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer

addOptions, addUserMeta, decodeFromURL, dispose, encodeForURL, generateURL, getComponentName, getObjectManager, handleException, setup

Methods inherited from class org.dspace.app.xmlui.wing.AbstractWingTransformer

createWingDocument, endDocument, endElement, endPrefixMapping, getDefaultMessageCatalogue, message, message, setupWing, startDocument, startElement, startPrefixMapping

Methods inherited from class org.apache.cocoon.xml.AbstractXMLPipe

characters, comment, endCDATA, endDTD, endEntity, ignorableWhitespace, processingInstruction, setDocumentLocator, skippedEntity, startCDATA, startDTD, startEntity

Methods inherited from class org.apache.cocoon.xml.AbstractXMLProducer

setConsumer, setContentHandler, setLexicalHandler

Methods inherited from class org.apache.cocoon.util.AbstractLogEnabled

getLogger, setLogger

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.xml.sax.ContentHandler

characters, ignorableWhitespace, processingInstruction, setDocumentLocator, skippedEntity

Methods inherited from interface org.xml.sax.ext.LexicalHandler

comment, endCDATA, endDTD, endEntity, startCDATA, startDTD, startEntity

Methods inherited from interface org.apache.cocoon.xml.XMLProducer

setConsumer

Field Detail

queryResults

protected DiscoverResult queryResults

The cache of recently submitted items

validity

protected org.apache.excalibur.source.SourceValidity validity

Cached validity object

queryArgs

protected DiscoverQuery queryArgs

Cached query arguments

OFFSET

public static final String OFFSET

See Also:

Constant Field Values

FACET_FIELD

public static final String FACET_FIELD

See Also:

Constant Field Values

Constructor Detail

BrowseFacet

public BrowseFacet()

Method Detail

getKey

public Serializable getKey()

Generate the unique caching key. This key must be unique inside the space of this component.

Specified by:

getKey in interface org.apache.cocoon.caching.CacheableProcessingComponent

getValidity

public org.apache.excalibur.source.SourceValidity getValidity()

Generate the cache validity object.

The validity object will include the collection being viewed and all recently submitted items. This does not include the community / collection hierarch, when this changes they will not be reflected in the cache.

Specified by:

getValidity in interface org.apache.cocoon.caching.CacheableProcessingComponent

getQueryResponse

protected DiscoverResult getQueryResponse(DSpaceObject scope)

Get the recently submitted items for the given community or collection.

Parameters:

scope - The collection.

addPageMeta

public void addPageMeta(PageMeta pageMeta)
                 throws SAXException,
                        WingException,
                        SQLException,
                        IOException,
                        AuthorizeException

Add a page title and trail links.

Specified by:

addPageMeta in interface DSpaceTransformer

Specified by:

addPageMeta in interface WingTransformer

Overrides:

addPageMeta in class AbstractDSpaceTransformer

Throws:

SAXException

WingException

SQLException

IOException

AuthorizeException

addBody

public void addBody(Body body)
             throws SAXException,
                    WingException,
                    UIException,
                    SQLException,
                    IOException,
                    AuthorizeException

Specified by:

addBody in interface DSpaceTransformer

Specified by:

addBody in interface WingTransformer

Overrides:

addBody in class AbstractDSpaceTransformer

Throws:

SAXException

WingException

UIException

SQLException

IOException

AuthorizeException

recycle

public void recycle()

Recycle

Specified by:

recycle in interface org.apache.avalon.excalibur.pool.Recyclable

Overrides:

recycle in class AbstractDSpaceTransformer

getParameterFacetQueries

public String[] getParameterFacetQueries()