Lazy Loading: lazy=no-proxy vs. lazy="proxy"

plutonianelephant · **Joined:** Tue Nov 15, 2005 6:56 pm **Posts:** 39

I'm using the latest hibernate tools 3.1. beta1.

I'm getting this error upgrading to the newest hibernate tools:

Code:

Attribute "lazy" with value "true" must have a value from the list "false proxy no-proxy ".

My mapping file has this definition for my many-to-one mapping:

Code:

<many-to-one name="dRange" class="DRange" column="DRANGE_ID" outer-join="true" lazy="true" insert="true" update="true" not-null="false"/>

The DTD I'm using is

Code:

http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd

and it says:

Code:

<!ATTLIST many-to-one lazy (true|false|proxy|no-proxy) #IMPLIED>

My questions are:

1) Why does the error I'm using contradict the DTD I'm using. Is there a newer DTD?
2) Is having outer-join="true" the same as fetch="join"?
3) By specifying outer-join-"true" or fetch="join", is it implict that lazy="false"? Is, so is having the lazy="true" attribute a contradiction? What would happen?
4) If the error is valid, how do I judge whether I need to specify lazy="proxy" or lazy="no-proxy" for cases when I want lazy to be true?

Any help is appreciated. Thanks.

max · **Posted:** Wed Dec 07, 2005 5:15 pm

many-to-one lazy´true does not work very well and were thus replaced with these new settings in 3.1.

The setting )lazy=true ) in 3.0 will only work with bytecode instrumentation and doesnt have good fallbbacks - so in short...don't use it ;)

use the new stuff in 3.1 if you want it .

plutonianelephant · **Joined:** Tue Nov 15, 2005 6:56 pm **Posts:** 39

ok, but can you please help me with this question:

4) If the error is valid, how do I judge whether I need to specify lazy="proxy" or lazy="no-proxy" for cases when I want lazy to be true?

Thanks.

max · **Posted:** Wed Dec 07, 2005 6:27 pm

best place is to read the 3.1 documentation.

for 3.0 simply dont set the attribute.