I am having the following issue with hibernate:

Foo and Bar both have select-before-update="true"

Foo foo = new Foo();

// INSERTS new Foo object as expected
foo = session1. save(foo);

// No changes so no INSERT or UPDATE as expected
foo = session2. save(foo);

Bar bar = new Bar();
foo.addBar(bar);

// UPDATES foo and INSERTS Bar object as expected
foo = session3. save(foo);

// Updates Bar even though no changes have been made
// and select-before-update is "true"!!!!
// WHY????
foo = session4. save(foo);

What is the issue here? Should I be using dynamic-update instead? What is the difference between dynamic-update and select-before-update? Any guidance is appreciated.

Thanks!

Edward

i've same problem; i can't implement dynamic-update too.

Have you guys tried reading the documentation?