nesstar.api.dais
Class Category

java.lang.Object
  java.util.Observable
      nesstar.rdf.RDFObject
          nesstar.api.dais.Category

All Implemented Interfaces:

Comparable, RDFObj

Direct Known Subclasses:

FolderEx

public class Category
extends RDFObject

A Category Code automatically generated from ARGO/UML

Author:

mgerardi

Created:

24 January 2002

Field Summary

static String

CLASS_ID

Fields inherited from class nesstar.rdf.RDFObject

COLSEP, IS_GETTER, IS_PART, IS_PART_OF, WRITE_OP

Constructor Summary

Category(RDFDB db, URL id)
Create an object with the indicated id in the indicated db

Method Summary

RDFRef	get_contents()
static Vector	getAllInstances()
static Vector	getAllInstances(RDFDB db)
List	getContents() Gets the contents attribute of the Category object
static Category	getInstance(RDFDB db, URL id) If an object of type Server with the indicated id exists in the db returns it otherwise create a new object in the db and returns it
static Category	getInstance(String rdf)
void	initialised() Notify that the object properties has been updated BUG: not just when the object has been created
static void	listenForNewObj(NewObjListener listener) Register to be notified when new objects are added.
static Category	retrieve(URL id) If an object of type Category with the indicated id has already being retrieved from the network returns it otherwise retrieve it together with its class information (methods, properties, etc.)
void	set_contents(RDFRef contents)

Methods inherited from class nesstar.rdf.RDFObject

AddProperty, AddStringProperty, chkFinal, clear, compareTo, dbg, equals, err, err, get_comment, get_creationDate, get_label, get, getAccessCondition, getBinding, getBindings, getBookmarkLabel, getCollectionURL, getComment, getCreationDate, getDB, getDescriptor, getDescriptor, getDomain, getGetterMethods, getID, getInitialisedProperties, getInternalID, getLabel, getLastClear, getPartsDescriptor, getPartsDescriptor, getPartsDescriptor, getPath, getProperties, GetProperties, GetProperty, GetPropertyStatement, GetPropertyStatements, getRange, getRangeType, getRef, getRef, getServer, getShortId, getShortID, getStatementHome, GetStringProperties, GetStringProperty, getTimeoutInSecs, getType, init, init, isComplete, isLocal, isMeta, isStale, loaded, neededCollectionReload, neededReload, neededReload, neededReload, neededReload, needsReload, reload, remove, set_comment, set_complete, set_creationDate, set_label, set, setComment, setComplete, setCreationDate, setDB, setHardOrSoft, setID, setLabel, setLastClear, SetProperty, setServer, SetStringProperty, setTimeoutInSecs, setTimestamp, setType, setTypeID, stale, toRDF, toRDFWrapped, toString, update

Methods inherited from class java.util.Observable

addObserver, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CLASS_ID

public static String CLASS_ID

Constructor Detail

Category

public Category(RDFDB db,
                URL id)
         throws Exception

Create an object with the indicated id in the indicated db

Parameters:

db - the db where the object is to be created

id - the id of the object to create

Throws:

Exception

Method Detail

set_contents

public void set_contents(RDFRef contents)

Parameters:

contents -

getAllInstances

public static Vector getAllInstances(RDFDB db)
                              throws Exception

Parameters:

db - the db where the instances are to be found

Returns:

all the instances of this class in the database

Throws:

Exception

getAllInstances

public static Vector getAllInstances()
                              throws Exception

Returns:

get all the instances of this class from the default database

Throws:

Exception

getInstance

public static Category getInstance(RDFDB db,
                                   URL id)
                            throws Exception

If an object of type Server with the indicated id exists in the db returns it otherwise create a new object in the db and returns it

Parameters:

db - the db where the object is to be found or created

id - the id of the object to retrieve or create

Returns:

an object of type Server with the indicated id and existing in the indicated db

Throws:

Exception

getInstance

public static Category getInstance(String rdf)
                            throws Exception

Parameters:

rdf - some rdf code that contains a description of an object of this kind

Returns:

the single instance of this class described in the passed RDF code

Throws:

Exception

get_contents

public RDFRef get_contents()

Returns:

Description of the Return Value

getContents

public List getContents()
                 throws Exception

Gets the contents attribute of the Category object

Returns:

The contents value

Throws:

Exception

listenForNewObj

public static void listenForNewObj(NewObjListener listener)

Register to be notified when new objects are added.

Parameters:

listener - the listener

initialised

public void initialised()

Notify that the object properties has been updated BUG: not just when the object has been created

Overrides:

initialised in class RDFObject

retrieve

public static Category retrieve(URL id)
                         throws Exception

If an object of type Category with the indicated id has already being retrieved from the network returns it otherwise retrieve it together with its class information (methods, properties, etc.)

Parameters:

id - the id of the object to retrieve

Returns:

an object of type Category with the indicated id

Throws:

Exception