edu.berkeley.io.context.museum
Class VisitorDisplayWidget

java.lang.Object
  context.arch.BaseObject
      context.arch.widget.Widget
          edu.berkeley.io.context.museum.VisitorDisplayWidget

All Implemented Interfaces:

CommunicationsHandler, MessageHandler

public class VisitorDisplayWidget

extends Widget

Location value is 'logical' location, i.e. which painting you're near. Like the number code visitors use in mobile museum tour guides today.

Author:

newbergr

Field Summary

static java.lang.String	CONTENT_ID
static java.lang.String	NONE
static java.lang.String	SET_CONTENT_ID
static java.lang.String	VISITOR_DISPLAY_SERVICE

Fields inherited from class context.arch.widget.Widget

attributes, attributeTypes, callbacks, CLASS, constantAttributes, constantAttributesTypes, CurrentOffset, DEBUG, DEFAULT_PORT, PUT_DATA, PUT_DATA_REPLY, QUERY, QUERY_ATTRIBUTES, QUERY_ATTRIBUTES_REPLY, QUERY_CALLBACKS, QUERY_CALLBACKS_REPLY, QUERY_CONSTANT_ATTRIBUTES, QUERY_CONSTANT_ATTRIBUTES_REPLY, QUERY_REPLY, QUERY_SERVICES, QUERY_SERVICES_REPLY, QUERY_VERSION, QUERY_VERSION_REPLY, services, SPACER, storage, subscribers, TIMESTAMP, UPDATE, UPDATE_AND_QUERY, UPDATE_AND_QUERY_REPLY, VERSION, VERSION_NUMBER, WIDGET_TYPE

Fields inherited from class context.arch.BaseObject

BASEOBJECT_TYPE, communications, DISABLE_PORT, discoverer, EXIT_OK, gFrame, handlers, ID, parser, PING, PING_REPLY, QUERY_DESCRIPTION, QUERY_DESCRIPTION_REPLY, serviceHandlers

Constructor Summary

VisitorDisplayWidget(java.lang.String userId, int port, boolean storageFlag)

Method Summary

protected Attributes	initAttributes() Sets the attributes for the widget
protected Callbacks	initCallbacks() Sets the callbacks for the widget
protected Attributes	initConstantAttributes() Sets the constant attributes for the widget
protected Services	initServices() Sets the services for the widget
protected Attributes	queryGenerator() This abstract method is called when the widget wants to get the latest generator info.
void	setContentId(java.lang.String newContentId) Sets the content id for the device; presumably the device will then retrieve content to display based on the id.
void	setLocation(java.lang.String newLocationName)
void	update()

Methods inherited from class context.arch.widget.Widget

addSubscriber, canHandle, canHandle, executeService, getAttributeType, getCurrentTime, getNewOffset, getNewOffsetNoDelay, getSubscribersDescription, getType, getUserDescription, getWidgetDescription, handleIndependentReply, isAttribute, isCallback, notify, processCallbackReply, putData, queryAttributes, queryCallbacks, queryConstantAttributes, queryServices, queryWidget, removeSubscriber, retrieveData, runUserMethod, runWidgetMethod, sendToSubscribers, setAttribute, setAttributes, setCallbacks, setConstantAttributes, setId, setNonConstantAttributes, setServices, setSubscribers, store, store, updateWidgetInformation

Methods inherited from class context.arch.BaseObject

activateDisplay, askInterpreter, deactivateDisplay, debugprintln, decodeData, discovererQuery, discovererQuery, discovererRegistration, discovererRegistration, discovererSendSubscription, discovererSubscribe, discovererSubscriptionNotification, discovererUnregistration, discovererUpdate, encodeData, executeAsynchronousWidgetService, executeSynchronousWidgetService, findDiscoverer, findDiscoverer, findDiscoverer, getComponentDescription, getDescription, getHostAddress, getHostName, getId, getId, getLease, getListOfHandlers, getLocationAddress, getPort, getVersion, getVersion, getWidgetAttributes, getWidgetCallbacks, getWidgetConstantAttributes, getWidgetServices, independentUserRequest, leaseEndNotified, pingComponent, pingComponent, pollWidget, println, putDataInWidget, queryVersion, quit, retrieveDataFrom, retrieveDataFrom, returnPing, runComponentMethod, runMethod, serviceResult, setAllDebug, setDiscoverer, setDisplay, setDisplay, setDisplayName, setDisplayTitle, setLease, setLocationAddress, setVersion, subscribeTo, unsubscribeFrom, updateAndPollWidget, userCallback, userRequest, userRequest, userRequest, userRequest

Methods inherited from class java.lang.Object

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

Field Detail

NONE

public static final java.lang.String NONE

See Also:

Constant Field Values

CONTENT_ID

public static final java.lang.String CONTENT_ID

See Also:

Constant Field Values

VISITOR_DISPLAY_SERVICE

public static final java.lang.String VISITOR_DISPLAY_SERVICE

See Also:

Constant Field Values

SET_CONTENT_ID

public static final java.lang.String SET_CONTENT_ID

See Also:

Constant Field Values

Constructor Detail

VisitorDisplayWidget

public VisitorDisplayWidget(java.lang.String userId,
                            int port,
                            boolean storageFlag)

Method Detail

setContentId

public void setContentId(java.lang.String newContentId)

Sets the content id for the device; presumably the device will then retrieve content to display based on the id. triggers an UPDATE callback.

Parameters:

newContentId -

setLocation

public void setLocation(java.lang.String newLocationName)

update

public void update()

initAttributes

protected Attributes initAttributes()

Description copied from class: Widget

Sets the attributes for the widget

Specified by:

initAttributes in class Widget

initCallbacks

protected Callbacks initCallbacks()

Description copied from class: Widget

Sets the callbacks for the widget

Specified by:

initCallbacks in class Widget

initConstantAttributes

protected Attributes initConstantAttributes()

Description copied from class: Widget

Sets the constant attributes for the widget

Specified by:

initConstantAttributes in class Widget

initServices

protected Services initServices()

Description copied from class: Widget

Sets the services for the widget

Specified by:

initServices in class Widget

queryGenerator

protected Attributes queryGenerator()

Description copied from class: Widget

This abstract method is called when the widget wants to get the latest generator info.

Specified by:

queryGenerator in class Widget

Returns:

AttributeNameValues containing the latest generator information