openjpa-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Yves (JIRA)" <>
Subject [jira] Created: (OPENJPA-1376) @GeneratedValue allocationSize incorrect implementation
Date Wed, 04 Nov 2009 23:49:32 GMT
@GeneratedValue allocationSize incorrect implementation

                 Key: OPENJPA-1376
             Project: OpenJPA
          Issue Type: Bug
          Components: jdbc
    Affects Versions: 2.0.0-M3, 1.2.1
         Environment: All
            Reporter: Yves
            Priority: Critical

OpenJpa use allocationSize parameter on NativeJDBCSeq to set the sequence cache value.

But one "JSR 220: Enterprise JavaBeansTM,Version 3.0" , the allocationSize is : "The amount
to increment by when allocating sequence
numbers from the sequence."

Allocating is used to limit the number of access to the sequence or table not to set the sequence
cache value !

If allocationSize=50, the sequence need to be call one time on each 50 call on

1 call on call the sequence or table 
2 call : return previous value + 1;
3 call : return previous value + 2;
51 call :re-call the sequence
52 return previous value + 1

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message