Use the AccessIntent API

 

Overview

This task describes how to programmatically retrieve and call the AccessIntent API during the execution of BMP entity bean methods.

 

Procedure

  1. Look up the current access intent in the namespace. For example

    InitialContext ic = new InitialContext(); 
    AccessIntent ai = ic.lookup("java:comp/websphere/AppProfile/AccessIntent"); 
    

  2. Call the necessary get() methods. For example

    int concurrency = ai.getConcurrencyControl(); 
    int accessType = ai.getAccessType(); 
    if ( (concurrency == AccessIntent.CONCURRENCY_CONTROL_PESSIMISTIC) 
       && (accessType == AccessIntent.ACCESS_TYPE_UPDATE) ) {
         boolean exclusive = ai.getPessimisticUpdateLockHint(); 
         // . . . 
    } 
    // . . . 
    

 

Result

Note: The access intent object reference retrieved from the java:comp lookup is current for the duration of the method in which the reference was looked up. Depending on how you configured the application profile, subsequent calls of the same method might not retrieve the same access intent reference. We can only look up the object reference during the call of a BMP entity bean's method; the reference does not exist during a request on a CMP entity bean. Therefore, access intent object references should not be cached beyond, or used outside of, the scope of the execution of any given BMP method.

 

See also


AccessIntent interface

 

Related Information


Access intent with BMP entity beans
Access intent policies
Task overview: Application profiling