Can you post a stack trace of the failure? Thanks, Rick
On Fri, Sep 30, 2011 at 8:35 AM, Michael Spiro <m.sp...@dcs-caesar.de>wrote: > Hi, > > > > I've got a problem with OpenJPA trying to make a join with a constant > value. > > > > According to the documentation, one can specify a constant value for a join > column, so that only records with this value in this column will be joined. > The constant value should be specified in the attribute > "referencedColumnName" of the @JoinColumn annotation. If the constant is a > string then its value should be enclosed first in single quotes and then in > double quotes like this: > > > > @JoinColumn(name="table.column", referencedColumnName="'value'") > > > > However, this declaration fails as I run my application. I debugged it and > found out something that looks like a possible bug. The method MappingInfo. > mergeJoinColumn() identifies the target of the join as a string constant if > its first character is a single quote (as it's described in the docs). > However, as this check takes place the value is already enclosed in one > extra pair of double quotes (in my example it's " "'value'" ") and the > check fails. > > > > I tried some different variations for the declaration like escaping the > quote sign with backslash or using double quotes, but this all doesn't > help. > I'm running OpenJPA 2.1.0 under JDK 1.6.0_25 and Windows, the default > locale should be German. Is this a bug or maybe can I succeed with a > slightly different declaration? > > > > As workaround I'll try to use a numeric constant, I hope this will work. > > > > Kind regards, > > Michael Spiro > > -- *Rick Curtis*
