org.vrspace.server.object
Class PublicVrmlFile

java.lang.Object
  java.util.Observable
      org.vrspace.server.VRObject
          org.vrspace.server.DBObject
              org.vrspace.server.PublicDBObject
                  org.vrspace.server.OwnedDBObject
                      org.vrspace.server.object.File
                          org.vrspace.server.object.VrmlFile
                              org.vrspace.server.object.PublicVrmlFile

All Implemented Interfaces:

java.lang.Cloneable, HasTransform, java.util.Observer, Owned

public class PublicVrmlFile

extends VrmlFile

This class represents the most public type of a vrml file requiring event broadcasting. Its use is intended for those vrml files whose shared events require no database persistence, and no server-side event processing. All of the events expected by a VrmlFile (e.g. download, upload, and clone ) are dealt with in the exact same way as for a VrmlFile. All other events sent to this object will be forwarded to all observers. This is in stark contrast to other VRObjects which filter out any request with an event not corresponding to a field or set_ method.

Administrators: Provide this class with great caution as it is essentially is an open relay in the server.

Nested Class Summary

Nested classes inherited from class org.vrspace.server.object.VrmlFile

VrmlFile.ParsedUploadFilter

Nested classes inherited from class org.vrspace.server.object.File

File.GZippedUploadFilter, File.UploadFilter

Field Summary

java.util.HashMap

state

Fields inherited from class org.vrspace.server.object.VrmlFile

transform

Fields inherited from class org.vrspace.server.object.File

_downloads, _lastUpdate, _uploads, name, ownerRole, publicRole, url

Fields inherited from class org.vrspace.server.DBObject

db

Fields inherited from class org.vrspace.server.VRObject

db_id, primitiveMap, primitives

Constructor Summary

PublicVrmlFile()

Method Summary

void	sendEvent(Request req) Overrides OwnedDBObject.sendEvent().
void	set_parentRotation(Request req, java.lang.String args)
void	set_parentScale(Request req, java.lang.String args)
void	set_parentTranslation(Request req, java.lang.String args)
void	verifyEvent(Request req) Verifies that the request was meant to be received by a VRObject of this class and with this database id.

Methods inherited from class org.vrspace.server.object.VrmlFile

createTransform, getTransform, getTransformID, set__clone, set_download, set_upload, set_url, setTransform, update

Methods inherited from class org.vrspace.server.object.File

encodeAsURI, getClassAndId, grantAccess, processEvent, setValue

Methods inherited from class org.vrspace.server.OwnedDBObject

addOwner, isOwned, notifyOwners, ownershipRequired, removeOwner

Methods inherited from class org.vrspace.server.DBObject

delete, get, put, put

Methods inherited from class org.vrspace.server.VRObject

arrayToString, canRead, canWrite, clone, equals, fieldToText, fromString, fromText, getClassName, getField, getFields, getId, getID, getMemebers, hasField, hasMethod, isNew, newInstance, sendResponse, setField, setField, setField, setFields, setFields, stringToArray, toString, toText, toText, toText

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

state

public java.util.HashMap state

Constructor Detail

PublicVrmlFile

public PublicVrmlFile()

Method Detail

set_parentTranslation

public void set_parentTranslation(Request req,
                                  java.lang.String args)
                           throws java.lang.Exception

Throws:

java.lang.Exception

set_parentRotation

public void set_parentRotation(Request req,
                               java.lang.String args)
                        throws java.lang.Exception

Throws:

java.lang.Exception

set_parentScale

public void set_parentScale(Request req,
                            java.lang.String args)
                     throws java.lang.Exception

Throws:

java.lang.Exception

verifyEvent

public void verifyEvent(Request req)
                 throws RequestException

Verifies that the request was meant to be received by a VRObject of this class and with this database id. A RequestException is thrown if this is not verified.

Throws:

RequestException

sendEvent

public void sendEvent(Request req)
               throws RequestException

Overrides OwnedDBObject.sendEvent(). This method calls super.sendEvent() and if a RequestException is not thrown, the method exits. Otherwise the method calls setChanged() and then setValue(). In effect, this implements all the functionality of its ancestors, but if the event corresponds to an unknown field or method, simply forwards it to all observers.

Overrides:

sendEvent in class File

Throws:

RequestException