EMA C++ Training Examples : EMA C++ Consumer Examples : 300 Series Examples : 332_Dictionary_Streaming
 
332_Dictionary_Streaming
Summary
=======
 
The 332_Dictionary_Streaming application is provided as an example of
OMM Consumer application written to the EMA library.
 
This application demonstrates basic usage of the EMA library for accessing
and parsing of OMM Dictionary and MarketPrice data from Data Feed
Direct, directly from an OMM Provider application, or from Advanced Distribution
Server.
 
The 332_Dictionary_Streaming showcases usage of directory stream in OMM
Consumer. It demonstrates opening of dictionary stream as well as its processing.
 
 
Detailed Description
====================
 
The 332_Dictionary_Streaming implements the following high level steps:
 
+ Implements OmmConsumerClient class in AppClient
- overrides desired methods
- provides own methods as needed, e.g. decode( const FieldList& )
- each of the method provided in this example use the ease of use
data extraction methods that are data type specific
+ Instantiates AppClient object that receives and processes item messages
+ Instantiates and modifies OmmConsumerConfig object
- sets user name to “user”
+ Instantiates an OmmConsumer object which initializes the connection
and logs into the specified server.
+ Opens three streaming item interests
- Dictionary Domain stream for RWFFld
- Dictionary Domain stream for RWFEnum
- Market Price Domain IBM.N item from DIRECT_FEED service
+ Processes data received from API for 60 seconds
- all received messages are processed on API thread of control
+ Exits
 
Note: if needed, these and other details may be modified to fit local
environment using EmaConfig.xml file.
Note: please refer to the EMA library ReadMe.txt file for details on
standard configuration.