Expression's question

PowerAMD · **Joined:** Tue Aug 09, 2005 11:35 pm **Posts:** 2

three class: Area, Enterprise, Information
Class Area{
}
Class Enterprise{
private Area area
......
......
}
Class Information{
private Enterprise enterprise
......
......
}

while query...
createCriteria(Enterprise.class).add(Expression.eq("area", area)); the result is right....

while query...
createCriteria(Information.class).add(Expression.eq("enterprise", enterprise)); the result is right....

whiel query...
createCriteria(Information.class).add(Expression.eq("enterprise.area", area));
could not resolve property: enterprise.area of: Information

can anyone help me.....
pls....

scesbron · **Joined:** Thu Sep 04, 2003 8:23 am **Posts:** 368

See chapter 16.4 of the doc of hibernate3 (or 12.4 for hibernate2), you have to create an alias or a new criteria to navigate throught associations

Code:

createCriteria(Information.class).createAlias("entreprise", "ent").add(Expression.eq("ent.area", area)

PowerAMD · **Joined:** Tue Aug 09, 2005 11:35 pm **Posts:** 2

thank you.....problem is ok now~~~~~~~~^_^