nesstar.api.common
Class Concept

java.lang.Object
  java.util.Observable
      nesstar.rdf.RDFObject
          nesstar.api.common.Concept

All Implemented Interfaces:

Comparable, RDFObj

Direct Known Subclasses:

GeoConcept

public class Concept
extends RDFObject

A concept, as defined in a thesaurus or other classification scheme.

Code automatically generated from ARGO/UML

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

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

Method Summary

void	clear() Clear all properties of this object
RDFRef	get_terms()
String	get_urn()
static Vector	getAllInstances()
static Vector	getAllInstances(RDFDB db)
static FeatureDescriptor	getDescriptor(String featureName) get the descriptor for a feature of the class, either method or attribute Note: the methods' feature are still not implemented
static Collection	getGetterMethods()
static Concept	getInstance(RDFDB db, URL id) If an object of type Concept with the indicated id exists in the db returns it otherwise create a new object in the db and returns it
static Concept	getInstance(String rdf)
static Collection	getPartsDescriptor()
List	getTerms()
String	getUrn() A globally unique, location indipendent identifier for this concept, e.g: elsst:E10.30.40.10.10.
void	initialised() Notify that the object has been created and its properties setup for the first time.
static void	listenForNewObj(NewObjListener listener) Register to be notified when new objects are added.
static Concept	newInstance(RDFDB db) Create a new object of this type with a locally unique id and returns it
static Concept	retrieve(URL id) If an object of type Concept 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_terms(RDFRef terms)
void	set_urn(String urn)
void	setTerms(List terms)
void	setUrn(String urn) A globally unique, location indipendent identifier for this concept, e.g: elsst:E10.30.40.10.10.

Methods inherited from class nesstar.rdf.RDFObject

AddProperty, AddStringProperty, chkFinal, compareTo, dbg, equals, err, err, get_comment, get_creationDate, get_label, get, getAccessCondition, getBinding, getBindings, getBookmarkLabel, getCollectionURL, getComment, getCreationDate, getDB, getDescriptor, getDomain, getID, getInitialisedProperties, getInternalID, getLabel, getLastClear, 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

Concept

public Concept(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_terms

public void set_terms(RDFRef terms)

Parameters:

terms -

setTerms

public void setTerms(List terms)
              throws Exception

Parameters:

terms -

Throws:

Exception

setUrn

public void setUrn(String urn)

A globally unique, location indipendent identifier for this concept, e.g: elsst:E10.30.40.10.10.

Note that the URN namespace "elsst" is not an officially registered URN namespace.

Parameters:

urn -

set_urn

public void set_urn(String urn)

Parameters:

urn -

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 Concept getInstance(RDFDB db,
                                  URL id)
                           throws Exception

If an object of type Concept 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 Concept 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_terms

public RDFRef get_terms()
                 throws Exception

Throws:

Exception

getTerms

public List getTerms()
              throws Exception

Returns:

Throws:

Exception

getUrn

public String getUrn()

A globally unique, location indipendent identifier for this concept, e.g: elsst:E10.30.40.10.10.

Note that the URN namespace "elsst" is not an officially registered URN namespace.

get_urn

public String get_urn()
               throws Exception

Throws:

Exception

getDescriptor

public static FeatureDescriptor getDescriptor(String featureName)

get the descriptor for a feature of the class, either method or attribute Note: the methods' feature are still not implemented

Parameters:

featureName -

getPartsDescriptor

public static Collection getPartsDescriptor()

Returns:

the descriptor of the attribute that are part of the class

getGetterMethods

public static Collection getGetterMethods()

Returns:

the descriptor of the attribute that are part of the class

newInstance

public static Concept newInstance(RDFDB db)
                           throws Exception

Create a new object of this type with a locally unique id and returns it

Parameters:

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

Returns:

an object of this type

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 has been created and its properties setup for the first time. This is NOT called when the object is simply reloaded.

Overrides:

initialised in class RDFObject

retrieve

public static Concept retrieve(URL id)
                        throws Exception

If an object of type Concept 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 Concept with the indicated id

Throws:

Exception

clear

public void clear()

Description copied from class: RDFObject

Clear all properties of this object

Overrides:

clear in class RDFObject