com.devexperts.mdd.news.model

Interface NewsService

public interface NewsService

Service to provide synchronous access to news.

Method Summary

Modifier and Type	Method and Description
NewsList	findNewsForFilter(NewsFilter filter, NewsKey lastKey) Long-polling method to find news updates since last known news for the specified filter.
NewsBody	getNewsBody(NewsKey newsKey) Returns NewsBody object for the specified news key.
String	getNewsContents(NewsKey newsKey) Returns news contents for the specified news key.

Method Detail

getNewsBody

NewsBody getNewsBody(NewsKey newsKey)
              throws NewsNotFoundException

Returns NewsBody object for the specified news key.

Parameters:

newsKey - news key to lookup news body for.

Returns:

news body

Throws:

NewsNotFoundException - if news is not found

getNewsContents

String getNewsContents(NewsKey newsKey)
                throws NewsNotFoundException

Returns news contents for the specified news key.

Parameters:

newsKey - news key to lookup news body for.

Returns:

news body contents

Throws:

NewsNotFoundException - if news is not found

findNewsForFilter

NewsList findNewsForFilter(NewsFilter filter,
                           NewsKey lastKey)

Long-polling method to find news updates since last known news for the specified filter. If there are news available on the server side this method will return immediately, otherwise it will be blocked until news updates arrive.

Parameters:

filter - news filter to filter news on the server-side.

lastKey - last received news key, or NewsKey.FIRST_KEY for first time.

Returns:

news list along with the last news key.