I'm transferring audio streaming from Ionic app to Google speech to text API through web sockets node.js API. The accuracy in Desktop web app is good, but when I open the app from chrome mobile bro. Available for Windows, Mac, and Linux, Google Chrome is the most widely used desktop browser in the world. Since its launch in 2008, Chrome has expanded to Android, iOS, and is the.
![Sap web dynpro tutorial Sap web dynpro tutorial](/uploads/1/1/7/7/117733943/175082552.png)
Hi all,
I have a route from add_A to add_B in my database, i want to get this route data from database and show up in google map page. The show up function can be implement by call google map javascript. My problem is how can send route data from web dynpro to my google map page. The google map page can be a JSP or html page, assume that we use the iFrame element to show this page.
I search forum, there is a way send the data by url parameter, but my case, the route data should be very large, may not be send by the url parameter. If any one have good idea or other solution for my case.
I have a route from add_A to add_B in my database, i want to get this route data from database and show up in google map page. The show up function can be implement by call google map javascript. My problem is how can send route data from web dynpro to my google map page. The google map page can be a JSP or html page, assume that we use the iFrame element to show this page.
I search forum, there is a way send the data by url parameter, but my case, the route data should be very large, may not be send by the url parameter. If any one have good idea or other solution for my case.
hi all,
I am encountering to new problem. After deploy my app and run in portal, the redirect does not work. the error message is:
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException:
Suspend-Plug must no be triggered when running in portal. Use portal navigation instead to navigate to another application!
at com.sap.tc.webdynpro.progmodel.view.View.navigate(View.java:529)
at com.sap.tc.webdynpro.progmodel.view.View.navigate(View.java:462)
at com.esapro.jcats.routemap.wins.wdp.InternalRouteMapInterfaceView.wdFirePlugSuspend(InternalRouteMapInterfaceView.java:154)
at com.esapro.jcats.routemap.view.RouteMapView.onActionShow(RouteMapView.java:192)
at com.esapro.jcats.routemap.view.wdp.InternalRouteMapView.wdInvokeEventHandler(InternalRouteMapView.java:276)
... 29 more
So my question is may i use portal navigation to resolve my problem and how to do it. I need to delivery parameter by post method between them page. If anyone give me some mainly steps.
I've try the method,it doesn't work. It only replace a new blank page in portal conten area.
WDPortalNavigation.navigateAbsolute(
'ROLES://portal_content/other_vendors/line_manager/com.aa.pct.jcats/com.aa.pct.jcats.iviews/com.aa.pct.jcats.Map',
WDPortalNavigationMode.SHOW_INPLACE,
'width=300,height=200',
null,
WDPortalNavigationHistoryMode.ALLOW_DUPLICATIONS,
null,
null,
best regard
reefish
Edited by: Ree Fish on Aug 6, 2009 5:53 PM
I am encountering to new problem. After deploy my app and run in portal, the redirect does not work. the error message is:
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException:
Suspend-Plug must no be triggered when running in portal. Use portal navigation instead to navigate to another application!
at com.sap.tc.webdynpro.progmodel.view.View.navigate(View.java:529)
at com.sap.tc.webdynpro.progmodel.view.View.navigate(View.java:462)
at com.esapro.jcats.routemap.wins.wdp.InternalRouteMapInterfaceView.wdFirePlugSuspend(InternalRouteMapInterfaceView.java:154)
at com.esapro.jcats.routemap.view.RouteMapView.onActionShow(RouteMapView.java:192)
at com.esapro.jcats.routemap.view.wdp.InternalRouteMapView.wdInvokeEventHandler(InternalRouteMapView.java:276)
... 29 more
So my question is may i use portal navigation to resolve my problem and how to do it. I need to delivery parameter by post method between them page. If anyone give me some mainly steps.
I've try the method,it doesn't work. It only replace a new blank page in portal conten area.
WDPortalNavigation.navigateAbsolute(
'ROLES://portal_content/other_vendors/line_manager/com.aa.pct.jcats/com.aa.pct.jcats.iviews/com.aa.pct.jcats.Map',
WDPortalNavigationMode.SHOW_INPLACE,
'width=300,height=200',
null,
WDPortalNavigationHistoryMode.ALLOW_DUPLICATIONS,
null,
null,
best regard
reefish
Edited by: Ree Fish on Aug 6, 2009 5:53 PM
Similar Messages
- Hi all,
Can someone tell how I can create a Google Url and show this Url in a Iframe in a Web dynpro. I can create an url but I see the google webpage with the map. I just want only see the map in my Iframe!
Kind Regards,
RichardHi Richard,
One solution that comes to mind is to have a URL parameter embedded. So the path that you have set to the iframe can be extended say for example http://<your path to HTML file in Mimes>?undefined=<address specific to the user>
Next thing to do is extract the URL parameter undefined by JavaScripting. So you can pass the address value to this param.
Once you have this you can trigger this by passing different addresses to URL parameter each time.
Replace the wdDoInit() by following code:
public void wdDoInit()
//@@begin wdDoInit()
try {
String resourcePath = WDURLGenerator.getWebResourceURL(wdComponentAPI.getDeployableObjectPart(), 'GoogleMapAPI.html');
wdThis.wdGetContext().currentContextElement().setPath(resourcePath + '?undefined=Mumbai');
} catch (WDURLException e) {
wdThis.wdGetAPI().getComponent().getMessageManager().reportException(e.getMessage(),true);
} catch (WDRuntimeException e) {
wdThis.wdGetAPI().getComponent().getMessageManager().reportException(e.getMessage(),true);
//@@end
Though I have hardcoded the location in above URL, i guess you got what i am indicating at!!
Even after all this, be carefull in preparing the URL which might result invalid URL due to special chars.
For Example: New York will result in invalid URL as <space> is not allowed. Ideally, it would have been New%20York. But then google API will no understand %20. Hence, I recommend you to replace %20 by <space> before calling Google API [You will have to write it in initialize() method of HTML file].
Also, replace the function initialise() in GoogleMapAPI.html
function initialize() {
if (GBrowserIsCompatible()) {
// This function is anonymous, is executed immediately and
var query_string = {};
var query = window.location.search.substring(1);
var vars = query.split('&');
for (var i=0;i<vars.length;i++) {
var pair = vars<i>.split('=');
// If first entry with this name
if (typeof query_string[pair[0]] 'undefined') {
query_string[pair[0]] = pair[1];
//this.address.value = pair[1];
map = new GMap2(document.getElementById('map_canvas'));
geocoder = new GClientGeocoder();
showAddress(pair[1]);
I hope your address issue is addressed by me now!!
kunal kotak - I have problem with CATS:
1. mapping field from Web Dynpro iview with Bapi_EeCatimesheet_Worklist
Column: Activity = Bapi_EeCatimesheet_Worklist_input_Out.???
Column: xxx = ???
Variable as TimeSheet of SAP Easy View
2. How to insert Employee timesheet into SAP System by BapiHi,
At first time the ApplicationParameter was not displayed among the mappable properties. After that I changed the ApplicationParameter property of the WD iView (so it became different from the default one) and created a new room template. What happened ? At the new template I could map to room_id to the ApplicationParameter. Interesting, not?
One other thing: What do you think about the following ?
1. First creating a 'Concat Strings' extension to create a string like 'room_id=<room_id>'
2. Creating an other extension and mapping the newly created string to the ApplicationParameter property
3. Getting the parameter from WD with the help of getRequestParameter(java.lang.String key)
I have not tried it yet, but I plan to do it.
Regards,
Ferenc - I just discovered today that you can't see a map route you modified on the web via google maps using the Maps app on the iphone! What a bummer!
I was hoping to use this to make bike routes for myself using google maps (you know how you can get directions on google maps on a computer, then you can drag parts of the route to different streets to modify the route), and then e-mail the route link to my iphone so I'd have the route via maps app.
Instead, when I modify the route using google maps on a computer and send it via e-mail, the e-mail shows up in my iphone, I click the link, am taken to the Maps app, which re-calculates the route for driving. But the whole point is to view my custom route for biking! And there's no way to modify the route in Maps app (is there?).
What's more, when I click the link to the google map in mail, it automatically takes me to the maps app. Is there any way I can make it take me to safari so I can see the map I modified? Since there's no copy/paste, seems I'd just have to memorize the lengthy url, which is ridiculous.
Does anyone know of a good way to do this?I'm having the exact same issue. When I create a custom route on Google Maps (www.google.com/maps), point-to-point, and then force it to take me on back roads via the drag option it won't work, it won't even plot the course.
Example:
Home to point 1, point 1 to point 2, point 2 to point 3 and point 3 to home.
It gives me an error saying, 'End location not found'
Really annoying! Fix it Apple. - I often use Google Maps to plan a route.
The problem I have noticed is that while the route does get plotted on the map, it is NOT drawn on the roads but rather offset a centimetre to the right.
Anyone else have this problem?
I find this very irritating as I cannot modify the route by click-draging it around.
My workround is to use Firefox...hi all,
I am encountering to new problem. After deploy my app and run in portal, the redirect does not work. the error message is:
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException:
Suspend-Plug must no be triggered when running in portal. Use portal navigation instead to navigate to another application!
at com.sap.tc.webdynpro.progmodel.view.View.navigate(View.java:529)
at com.sap.tc.webdynpro.progmodel.view.View.navigate(View.java:462)
at com.esapro.jcats.routemap.wins.wdp.InternalRouteMapInterfaceView.wdFirePlugSuspend(InternalRouteMapInterfaceView.java:154)
at com.esapro.jcats.routemap.view.RouteMapView.onActionShow(RouteMapView.java:192)
at com.esapro.jcats.routemap.view.wdp.InternalRouteMapView.wdInvokeEventHandler(InternalRouteMapView.java:276)
... 29 more
So my question is may i use portal navigation to resolve my problem and how to do it. I need to delivery parameter by post method between them page. If anyone give me some mainly steps.
I've try the method,it doesn't work. It only replace a new blank page in portal conten area.
WDPortalNavigation.navigateAbsolute(
'ROLES://portal_content/other_vendors/line_manager/com.aa.pct.jcats/com.aa.pct.jcats.iviews/com.aa.pct.jcats.Map',
WDPortalNavigationMode.SHOW_INPLACE,
'width=300,height=200',
null,
WDPortalNavigationHistoryMode.ALLOW_DUPLICATIONS,
null,
null,
best regard
reefish
Edited by: Ree Fish on Aug 6, 2009 5:53 PM - Hi Experts,
I have started creating simple ALV by following the example in the below mentioned link.
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/3439404a-0801-0010-dda5-8c14514d690d
I have completed 95% development but stuck with last bit of
Set data to ALV for display (via reverse context mapping).
When Click on the Controller Usage button. The component controller of your Web Dynpro component DOES NOT appears on the right side of the screen.
Therefore I can not Map context node NODE_FLIGHTTAB of your Web Dynpro component to context DATA of the interface controller of the ALV component.
Could you please shed me light on this.
Your time and help much appreciated.
Best Regards
CBHi Chandra,
You need to add component controller first. Just go to the property tab of interface controller of the alv component and click on create button and then add the component controller. After that you'll be able to see the node in the context tab.
Regards
Arjun - Hello
I am having severe difficulty in trying to insert a Google Map into my website at http://www.peterdewitscafe.co.uk.
I have got a API key, then generated code to copy/paste as appropriate. After several attempts I can only get an error message saying:
'The Google Maps API key used on this web site was registered for a different web site. You can generate a new key for this website at http://www.google.com/apis/maps/'.
When asked by Google to enter my URL I enter http://home.btconnect.com/peterdewitscafe/, as I understand that the key/code is specific to the server (my server is ftp.btconnect.com).
My site is built with freeway. I'm wondering if there is a problem arising from the fact that I built an earlier site with the same URL in iWeb. But the freeway one is uploaded now and surely overwrites the old one doesn't it?
Does anyone have any advice? - or is there no way around this problem.
Any help will be very welcome.
Regards toymaker1
iMac Mac OS X (10.4.8)Have you actually tried this to see what it does?
In Muse when you import the oam file the entire project within the file is extracted and placed within the folder structure of the Muse project and using an iFrame the Edge Animate animation is included into the html of the Muse project.
Dreamweaver, Indesign and whatever other Adobe software that can import Edge Animate projects can't take the html and individual assetts like css and js and just use them. Instead you have to export the Edge Animate project into an oam file which is basically a zip file with folder structure and some instructions that tell where everything is and how they are linked together.
Indesign, Muse, Dreamweaver then takes this file and exports out the oam folder into the current folder structure of the current opened project and brings in the assetts. In Muse it uses an iFrame to bring in the Edge Animate files, I don't know about Dreamweaver or Indesign.
So you see, the oam is being used but when you upload the finished project it is not the oam that is uploaded but the actual html, css and js contained within. Dreamweaver just needs the context of everything and it can only get that from the OAM file, it is only a container.
If you wanted to take the Edge Animate assetts and put them together manually inside of dreamweaver you can do that but the OAM import is just faster because dreamweaver does it all for you.
All I can say is this is Adobe's way of doing things. - Have WAS 6.40 server - portal not loaded!
In web dynpro content administrator, 'Maintian Jco connections, click create, on 'security tab', the user mapping option is presented in sp13.
In sp14 & 15, with option is not available.
HELP?
thank you.As per the procedure given in 3rd point I have changed the j2eadm password but it gives me the below error when I try to redeploy and run
Result
=> deployment aborted : file:/C:/WINDOWS/TEMP/temp26493Welcome.ear
Aborted: development component 'Welcome'/'local'/'LOKAL'/'0.2007.09.25.22.11.45':
Caught exception while checking the login credentials for SAP J2EE Engine. Check whether the SAP J2EE Engine is up and running.
com.sap.engine.deploy.manager.DeployManagerException: ERROR: Cannot connect to Host: [Natasha] with user name: [admin] Check your login information. Exception is: com.sap.engine.services.jndi.persistent.exceptions.NamingException: Exception while trying to get InitialContext. [Root exception is com.sap.engine.services.security.exceptions.BaseLoginException: Authentication did not succeed.]
(message ID: com.sap.sdm.serverext.servertype.inqmy.extern.EngineApplOnlineDeployerImpl.checkLoginCredentials.DMEXC)
Deployment exception : The deployment of at least one item aborted - I need to design an application or webpage that will run from a link in an e-mail, and that will pull, display, and send some SAP R3 portal content.
I've been playing with Netweaver Developers Studio / Web Dynpro, and have made a basic application/page that 'looks' as I need it to look.
I'm very new at this, so I know I need to learn a lot of things. I need to figure out how to get my application / page to talk to R3. The page will have a few fields displaying portal content, and then an Accept and Reject button.
Can someone point me in the right direction? Are there any learning resources out there that would be helpful for my situation?
Message was edited by: Adam Tidwell<a href='https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webdynpro/tutorial%20on%20accessing%20abap%20functions%20in%20web%20dynpro%20-%204.htm'>this one</a>
<a href='https://www.sdn.sap.com/irj/sdn/developerareas/webdynpro?rid=/webcontent/uuid/5b77db42-0a01-0010-d7ba-8aa375593dd3'>or [original link is broken] this one</a> - The situation:
I have four views (View V1, V2, V2_popup, V3) in three Components C1, C2,C3.
View V1 is embeded in Component C1. View V2 is embeded in C2 with view V2_popup as Popup-Window.
View V3 is embeded in Component-C3. And at last the View of Component C2 and C3 are embeded in View V1.
The Problem is the CrossOver Context Mapping between the view V2 and V3.
My first way is the 'direct context mapping':
I define a node in the ComponenteControllen from Component-C2 as interface and use it over the ComponentenController
from Component-C3 in view-V3. Now I bind an attribute of the mapped node to an ui-element (e.g: inputfield),
but the output of the Field is empty.
The second way is, that I define an external Mapping for this situtation.
I define a node in the componente-controllen from Component-C2 (an Component-C3)as interface with the attribute 'Input Element (Ext)'.
Than I map the two nodes with a node from Component-C1. That's works fine.
BUT, if I execute an action (e.g. action_save)in the popup for view-v2 (V2_popup) the changings from the inputfields don't write (show)in the context of the
popup-view. I check this with the debugger. And if I close the popup and open it again, the changings are visible.
Short: If I define a node with attribute 'Input Element (Ext)', I don't can read changings from
the screen in a popup-window.
How I can solve this problem???
Message was edited by:
Maik SturmHi Maik,
try this:
at first you have to instantiate all! used components in the wddoinit method of the componentcontroller in your main (c1) component.
e.g. instance of c2 Component
lr_usage_c2_comp = wd_this->wd_cpuse_c2_comp( ).
IF lr_usage_c2_comp->has_active_component( ) IS INITIAL.
lr_usage_c2_comp->create_component( ).
ENDIF.
and at the end set the reference:
l_ref_interfacecontroller = wd_this->wd_cpifc_c3_comp( ).
l_ref_interfacecontroller->set_usage(
ir_usage_c2_comp = lr_usage_c2_comp ).
set_usage is a method in the c3 component controller,
METHOD set_usage .
DATA: lr_usage TYPE REF TO if_wd_component_usage.
lr_usage = wd_this->wd_cpuse_c2_comp( ).
lr_usage->enter_referencing_mode( ir_usage_c2_comp ).
After doing this the components are using the same instance and you can simply use direct mapping between the components.
Hope it helps.
regards
Christian - Hello Experts,
I am using Floor Plan Manager for Road map(FPM_GAF_COMPONENT).
I have 5 main road map steps of which the second one has 3 ( 2.1, 2.2 , 2.3 ) sub road map steps.
I have a requirement of enabling only the sub road map step in which we are presently in.
The other sub road map steps should be disabled.
Like if i am in 2.2 then 2.1 and 2.3 should be disabled.
I have solved this issue for main road map steps but unable to find a way for doing the same with Sub Road map steps.
Please help me out in this.
Thanks in Advance,
Shravan VarmaSubsteps are not shown automatically, they are to be enabled at runtime .
See in page 35/36 adding/activating substep
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/e0d500f5-5205-2e10-43a6-dd023a5d0818?QuickLink=index&overridelayout=true - Hi All,
Could anyone tell how xml string can be bound to context nodes ? In my requirement i need to serialize context nodes value to string and deserialize it back to nodes for implementing back naviagtion between views.
I didnt see much threads achieving this giving details on class cl_wdr_xml_convert_util and methods if_wd_client_conversion_util~string_to_struct.
I am using wd_context->to_xml to convert into xml.
From this format, i want to bind it back to context node.
When i use this below approch i get short dumb.
Serialization to xml:
lv_data_string = wd_context->to_xml( ).
Deserialization:
DATA lv_typedescr TYPE REF TO cl_abap_typedescr.
FIELD-SYMBOLS:
<fs_data> TYPE ANY TABLE.
CALL METHOD cl_abap_typedescr=>describe_by_object_ref
EXPORTING
p_object_ref = wd_context
RECEIVING
p_descr_ref = lv_typedescr
EXCEPTIONS
reference_is_initial = 1
OTHERS = 2.
try.
CALL METHOD cl_wdr_xml_convert_util=>if_wd_client_conversion_util~string_to_struct
EXPORTING
in = lv_data_string
typedescr = lv_typedescr
IMPORTING
data = <fs_data>
CATCH cx_wdr_conversion_exception into lo_err .
lv_exp = lo_err->get_text( ).
ENDTRY.
wd_context->bind_table( values = <fs-data>.
Using this way, i get a short dumb as assert statement is failed as value for typedescr->type_kind is '*'.
method if_wd_client_conversion_util~string_to_struct.
assert typedescr->type_kind = cl_abap_typedescr=>typekind_struct1
or typedescr->type_kind = cl_abap_typedescr=>typekind_struct2.
raise exception type cx_wdr_conversion_exception
exporting textid = cx_wdr_conversion_exception=>illegal_type.
On debugging changing this value to required also made no difference, as no value could be assigned to the field symbol.
Suggest a soution to do this.Hi Thomas,
Thanks for your replies.
I have corrected it, but the field symbol is empty and while debugging it says data type is incorrect.
code:
FIELD-SYMBOLS:
<fs_data> TYPE ANY TABLE.
data: lsbp type ZXBPCENTRAL,
go_ref type ref to data.
CALL METHOD cl_abap_typedescr=>describe_by_data ' ( before it was describe_by_object_ref)
EXPORTING
p_data = lsbp
receiving
p_descr_ref = lv_typedescr.
try.
CALL METHOD cl_wdr_xml_convert_util=>if_wd_client_conversion_util~string_to_struct
EXPORTING
in = lv_data_string
typedescr = lv_typedescr
IMPORTING
data = go_ref '<fs_data>
CATCH cx_wdr_conversion_exception into lo_err .
lv_exp = lo_err->get_text( ).------> Here the error says ' Invalid data type and hence, there is no data.
ENDTRY.
assign go_ref->* to <fs_data>.
I am still looking for solution and thanks a lot .... - I am trying to use the google api / webservice in Web dynpro while followig the instructions and im getting this task message when i try to save the metadata:
<b><i>Web Dynpro Generation: Metadata constraint of Component GoogleSearch is violated:ViewElementProperty '//WebDynpro/View:com.aramco.tcm.wd.google.SearchView/RootUIElementContainer/Child:SearchQuery/Property:width', Role 'Definition': A minimum of 1 object(s) is required GoogleSearch.wdcomponentGoogleSearch/src/packages/com/aramco/tcm/wd/google </i></b>
I am currently using NWDS patch 9.
Thanks,
Wael AoudiHi wael aoudi,
I am also having the same problem i.e.
Web Dynpro Generation: Metadata constraint of Component GoogleSearch is violated:ViewElementProperty '//WebDynpro/.........................../SearchView/RootUIElementContainer/Child:SearchQuery/Property:width', Role 'Definition': A minimum of 1 object(s) is required
Plz provide a detailed solution
Thanks,
Vilish - Hi dudes,
I want explanation *** definition for the following
(1) web dynpro
(2) Cardinality
(3) methods
(4) Nodes
(5) Attributes
(6) Interface
(7) Views
(8) Windows
(9) Mapping
(10)Binding
(11)Model
(12)ControllerHi,
Here are the defintions for the terms you hav requested-
Web Dynpro Architecture
Definition
Web Dynpro is the SAP NetWeaver programming model for user interfaces (UIs).
The Web Dynpro model is based on the Model View Controller paradigm, and has the
following features that build on the classic dynpro model:
Clear separation of business logic and display logic
Uniform metamodel for all types of user interfaces
Execution on a number of client platforms
Extensive platform independence of interfaces
Web Dynpro provides support for developing Web representation of a business application.
You use specific tools to describe the properties of a Web Dynpro application in the form of
Web Dynpro metadata. The necessary source code is then generated automatically and
executed at runtime. In addition to the events offered by the framework, you can also define
your own events for a Web Dynpro application. However, the event handling must always be
programmed in separate source code areas which are executed automatically when the event
is triggered at runtime.
In Web Dynpro, each user interface is always made up of the same basic elements. These
elements of the metamodel can be statically declared using Web Dynpro tools.
It is also possible to implement elements of the metamodel at runtime and to change them or
reintegrate them at runtime. Using these implementations, you can make any changes or
enhancements to a user interface that has been created by declarative methods by
generating new interface structures at runtime.
This means that you can combine declarative processes and the implementation of source
code.
A Web Dynpro component is a reusable entity. It summarizes all components that are
required as part of this programming unit for an executable Web Dynpro application.
The Web Dynpro component concept offers a number of advantages:
Structuring of the programming
Creation of easily manageable application blocks
Reusability of whole components
Decoupling of software projects in both time and space
The Web Dynpro component contains any number of windows and views and their
corresponding controllers. Additional Web Dynpro components can also be referenced.
View
A view describes the layout and behavior of a rectangular area of a user interface.
Every Web Dynpro application has at least one view. The layout of a view is made up of
different user interface elements, which can be nested in each other. The positioning of
interface elements in one view is supported by the supplied layout variants.
In addition to the visible part, the layout, a view also contains a controller and a context. The
data to which the elements of the view can be bound are stored and managed in the view
context, enabling them to be represented or used on the screen. The view controller can
contain methods for data retrieval or for processing user input.
Window
A window is used to combine several Views and View Sets (the concept of view sets is only
offered in Web Dynpro for Java). A view can only be displayed by the browser if it has been
embedded in a window. A window always contains one or more views, which are connected
by navigation links. One of these views, or a view set, is specified as the start view and is
displayed the first time the window is called.
Windows have inbound and outbound plugs.
Inbound Plugs and Outbound Plugs
A window has one or several inbound or outbound plugs. Using these plugs, a window can be
included into a navigation chain. The concept of these plugs corresponds to the concept of
the plug for a view. Each plug of a window is visible within the entire window and can be used
for navigating within this window. In addition, one or several plugs can be made accessible to
the component interface so that they are visible even beyond the limits of the component in
question. They thus belong to the interface view of the relevant window.
They are used to navogate from one view to other and pass the data between the views. Which view to be called next from current view - the flow of views is descriebd here using Plugs.
Controller
Controllers are the active parts of a Web Dynpro application. They define how the user can
interact with the Web Dynpro application. The data that a controller can access is defined in
the corresponding context. Different instances of controllers and contexts exist within a Web
Dynpro application.
View Controller
Each view has exactly one view controller, which processes the actions performed by the user in the view.
A view also has exactly one view context, which contains the data required for the view.
Interface Controller
Each Web Dynpro component contains exactly one component controller. This controller is a
global controller that is visible also outside the component. It is thus part of the interface of a
Web Dynpro component.
Context
Definition
The data used in the component or in the view are stored in the context. Read-write access to
this data is available using the controllers as a starting point.
Structure
The data from the contexts is managed in a hierarchical structure. Each context has a root
node, underneath which the individual data fields (attributes) are stored in a tree structure.
You create this tree structure according to the structure of your application.
CONTEXT is generally called as a ROOT Node.
Each context has nodes and attributes also.
Cardinatlity
Each node contains data fields that represent one of the following:
u2022
An individual instance of an object type
u2022
A table of instances.
This property of a node is known as its cardinality. The following table summarizes the
possible cardinalities for a node:
Cardinality Description
1:1 The node contains only one element instance, which is instantiated automatically.
0:1 The node contains only one element instance, which must not be instantiated.
1:n The node can contain multiple element instances, of which at least one must always be
instantiated (and is instantiated automatically).
0:n The node can contain multiple element instances, of which none have to be instantiated.
Further information about this and other properties of context nodes is available in the section
Context-Nodes: Properties.
Recursion Nodes
Dynamic node nesting is possible within a context, creating what is called a recursion node.
The node that is used for recursion is always a predecessor of the new node. The newly
created recursion node is a reference to a predecessor node and therefore cannot be
processed separately. Instead it takes on the structure of the node to be repeated.
Data Binding and Mapping
Within the Web Dynpro architecture, the contexts of the different controllers can be linked in
different ways:
u2022
A UI element of the user interface of the view can be linked with an element of the view
context.
u2022
A mapping can be defined between two global controller contexts, or from a view
context to a global controller context.
The context of a global controller can be linked to a Web Dynpro Model.
Defining Mapping Between Two Contexts
The elements of a view context can be locally defined. In this case (represented in the graphic
below as a 'Local Node'), all the contained attributes are only visible within the relevant view.
When the view disappears, the attribute values are deleted.
Event
The component controller allows you to create events.
Events are used to communicate between controllers and enable one controller to trigger
event handlers in a different controller.
Cross-component communication can be implemented using the interface controlleru2019s events.
Events that were created in the component controller are visible within the component only.
Inbound Plugs
Inbound plugs in a view also react like an event. Therefore, when a view is called using an
inbound plug, the event handler that is optionally available for the inbound plug is always
called first. In this case event handling takes place within the current view controller.
UI Element Events
Some UI elements, such as the Button element have special events that are linked with user
actions. These events are predefined and have to be linked with an action at design time.
Actions for UI Element Events
Some UI elements such as the button element can react to a useru2019s interaction: clicking on
the corresponding pushbutton can trigger a handling method to be called within the view
controller. Such UI elements are equipped with one or several general events, which can be
linked with a specific action at design time (switching to a subsequent view, for example). If
such an action is created, an event handler method for this action is created automatically. In
this way, you can equip a UI element event (which has been inserted several times into a
view) with different actions as necessary. The event is then processed by the corresponding
event handler depending on the action that is linked.
Interfaces of Web Dynpro Components
Each component has an interface in order to enable communication between Web Dynpro
components and to enable a component to be called up by a user. This interface consists of
two parts:
Interface View of a Window Contained in a Component
The interface view of a Web Dynpro window is used to link a window with a Web Dynpro
application that can be called by the user.
Reward if helpful.
Best Wishes,
Chandralekha - We're looking at implementing some processes using Guide Procedures, and I have a question about design 'style'.
I'm creating a data layer using Entity Services. The entity services will be utilized by the Application Services to create a business layer. How to do this is clear, and straightforward.
However, where I have a question is how the automatically generated Web Dynpro application (or any other Web Dynpro application, for that matter) can interact with Application Services. I've seen sample applications where the Web Dynpro application interacts with application services via mapping from the Web Dynpro interface layer through the GP Runtime - from my perspective, this looks like a good way to deal with a small amount of data being passed between the steps in the GP.
The primary Web Dynpro application will let the user interact with the data, massaging it until it's in a form where the next person needs to deal with it. I was thinking of having the Web Dynpro application interact with the Application Services layer directly to move data from the database to the web dynpro application, and back again. The only thing that would be passed between the steps in the GP would be the guid of the primary data structure. I would also expose a method of the Application Service as a CO which would take the guid and return the entire business object, so viewing screens could be constructed - as well, PDF's could be generated, and so on.
Is this considered bad form in a GP, specifically accessing Application Services directly, instead of through a step in the GP? I understand that what I want to do ties the Web Dynpro application directly to the Application Services layer, but my thinking is that the CO that encompasses the Web Dynpro should be 'atomic', in that all operations related to that specific step should be contained in a single CO. In other words, the action of creating the business object, fiddling with it, an then submitting it upstream should be contained in one CO.
Comments, suggestions?Hi,
In the Composite Application Framework scenario, you first create the Business Entities. These act as data holder. To fill the data within these entities the Application services are created. These application services are later exposed as a webservice and deployed.
These webservices can contain different methods along with the CRUD operations depending on the Process Flow and Design implemented. We can import the webservices as a model in the WebDynPro Component. The UI elements of the Views can be binded to the Model. So when we execute the model methods the data gets entered into the Business objects.
This WebDynPro component should be a callable object ( It requires some Dependencies to be added to the WebDynPro Component ). So that you can have Input/Output parameters and ResultStates. These parameters are useful if you have to pass some parameters from one view to other within the same component. So this WebDynPro Callable object includes the Application service calls and also the passing of data through the GP Input/Output Structures.
These callable objects are then included within the Process.
This is how I think a Composite Application must be designed.
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In case you weren’t already aware, Google Home Hub has a built-in web browser. It’s not a standalone app that’s meant to be used by itself, but you can manually navigate around the web to just about anywhere. The existence of the browser isn’t a new addition, but it is a “hidden” feature that many might not yet know about.
While many missed it, Variety’s Janko Rottgers noted the existence of the browser in his initial review of the Home Hub:
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The Home Hub doesn’t have a browser app. However, searching for an image often leads to results that then link to third-party websites like Wikipedia. Follow that link, and you are able to browse pretty much the entire online encyclopedia — with one notable exception: Home Hub doesn’t offer any on-screen keyboard, and there’s no option to dictate text input. This means that you won’t be able to search for anything.
How to use the web browser on Google Home Hub
To pull up the browser, simply use the normal hotword “OK Google” to search for a query that might give you a Wikipedia result. You can try “Who is Nelson Mandela?” or “What is a giraffe?”. For these queries (and many others) you should see a Wikipedia result with a tappable link near the bottom. From there, you can scroll around to read more.
While there’s no way to manually navigate to a specific webpage, you can find your way to just about any site on the web by searching for a relevant Wikipedia entry and clicking the various links. For instance, if you wanted to navigate to W3schools.com, you can ask “What is W3schools?” to pull up the Wikipedia entry and then click to the site.
It seems that, as of now, there’s no method for text entry. That means, even if you do manage to get to a website like Netflix or another service that requires a log in of some kind, you won’t be able to. As far as we can tell, there’s no obvious workaround — there’s no copy/paste function and connecting a keyboard to the service port does nothing.
Google Home Hub user agent
9to5Google reader Henry Lim managed to make his way to whatismybrowser.com, which shares the User Agent of the web browser and includes other device details. Apparently, the browser is defined as “Chrome 70 on Android”, specifically version 70.0.3538.47.
Hmm pic.twitter.com/OdZA9RD1Zf
— Henry Lim (@henrylim96) January 3, 2019
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