nesstar.api.common
Class Statement

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

All Implemented Interfaces:

Comparable, RDFObj

public class Statement
extends RDFObject

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

Statement(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_object()
String	get_objectAsString()
String	get_predicate()
RDFRef	get_subject()
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 Statement	getInstance(RDFDB db, URL id) If an object of type Statement with the indicated id exists in the db returns it otherwise create a new object in the db and returns it
static Statement	getInstance(String rdf)
RDFObject	getObject()
String	getObjectAsString() Represents the object of the statement as a String
static Collection	getPartsDescriptor()
String	getPredicate() Represents the url of the rdf property between subject and object (e.g.
RDFObject	getSubject()
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 Statement	newInstance(RDFDB db) Create a new object of this type with a locally unique id and returns it
Bookmark	Remove() delete the statement
void	Remove(BasicExecutorLog log) delete the statement
static Statement	retrieve(URL id) If an object of type Statement 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_object(RDFRef object)
void	set_objectAsString(String objectAsString)
void	set_predicate(String predicate)
void	set_subject(RDFRef subject)
void	setObject(RDFObject object)
void	setObjectAsString(String objectAsString) Represents the object of the statement as a String
void	setPredicate(String predicate) Represents the url of the rdf property between subject and object (e.g.
void	setSubject(RDFObject subject)

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

Statement

public Statement(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_subject

public void set_subject(RDFRef subject)

Parameters:

subject -

setSubject

public void setSubject(RDFObject subject)
                throws Exception

Parameters:

subject -

Throws:

Exception

set_object

public void set_object(RDFRef object)

Parameters:

object -

setObject

public void setObject(RDFObject object)
               throws Exception

Parameters:

object -

Throws:

Exception

setPredicate

public void setPredicate(String predicate)

Represents the url of the rdf property between subject and object (e.g. http://www.nesstar.org/rdf/faster/Catalog#children)

Parameters:

predicate -

set_predicate

public void set_predicate(String predicate)

Parameters:

predicate -

setObjectAsString

public void setObjectAsString(String objectAsString)

Represents the object of the statement as a String

Parameters:

objectAsString -

set_objectAsString

public void set_objectAsString(String objectAsString)

Parameters:

objectAsString -

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 Statement getInstance(RDFDB db,
                                    URL id)
                             throws Exception

If an object of type Statement 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 Statement 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_subject

public RDFRef get_subject()
                   throws Exception

Throws:

Exception

getSubject

public RDFObject getSubject()

Returns:

Represents the subject of the statement (e.g. a parent catalog)

get_object

public RDFRef get_object()
                  throws Exception

Throws:

Exception

getObject

public RDFObject getObject()

Returns:

Represents the object of the statement (e.g. a child catalog)

getPredicate

public String getPredicate()

Represents the url of the rdf property between subject and object (e.g. http://www.nesstar.org/rdf/faster/Catalog#children)

get_predicate

public String get_predicate()
                     throws Exception

Throws:

Exception

getObjectAsString

public String getObjectAsString()

Represents the object of the statement as a String

get_objectAsString

public String get_objectAsString()
                          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 Statement 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 Statement retrieve(URL id)
                          throws Exception

If an object of type Statement 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 Statement 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

Remove

public Bookmark Remove()
                throws Exception

delete the statement

Throws:

Exception

Remove

public void Remove(BasicExecutorLog log)
            throws Exception

delete the statement

Parameters:

log - the Executor of this method;if null a default one is used

Throws:

Exception