Purpose of u201C MdelData_destu201D and u201CMetadata_destu201D

[Former Member]

Hi Experts,

can aybody tell me Purpose of u201C MdelData_destu201D and u201CMetadata_destu201D ?

Advance Thanks,

Namrata.

[Former Member · Accepted solution]

Hi Namrata,

They are used to connect to the back end SAP system and if you are using an adaptive RFC model in a Web Dynpro application, you must define 2 JCo destinations, one for metadata and other for model data.

MetaData: The application gets metadata from this connection. When defining JCo destinations for metadata, you may only use authentication method User/Password.

ModelData: The application gets the application data (actual data) from the model data destination.

Thanks & Regards,

Jhansi Miryala

[Former Member]

Hi Namrata,

ModelData and Metadata destination while setting up JCo destinations are used for the following:

Modeldata is used for data retrieval (as in if you are searching for some values, the values that are retrieved as a result of the query is done using modeldata)

Metadata on the other hand is concerned with the Field/Table specifications(Its like data about data).

These are required in case you want to connect to ERP using WDP apps.

Hope this helps!

Cheers,

Arafat

[Former Member]

Hi,

model data destination for getting the data from backend Ecc to your webdynproapplication like the records available in the table

meta data destination for getting the data from backend Ecc to your webdynproapplication like the strucutre of the table like the data types of each column, and no of columns

for accessing the application data that model data we dont need the password we can achive this with logon ticket method

but where as you need to use the pwd in the meta data calling,

it may slove your issue,

Cheers,

Apparao