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Hi there.

This structure will generate an infinite loop of cascading proxy objects. A product has a collection of prices, which in turn refer to the product, which refer to the price, etc.

You have to choose a point at which to use the actual object instead of a proxy. For example, you can decide that the proxy object targets "real" price objects instead of proxy prices. You can use the @immutable and @immutableelements annotations to do so.

http://books.zkoss.org/zk-mvvm-book/8.0/syntax/immutable.html http://books.zkoss.org/zk-mvvm-book/8.0/syntax/immutableelements.html

See an example in fiddle. https://zkfiddle.org/sample/h7t36l/10-Another-new-ZK-fiddle

Hi there.

This structure will generate an infinite loop of cascading proxy objects. A product has a collection of prices, which in turn refer to the product, which refer to the price, etc.

You have to choose a point at which to use the actual object instead of a proxy. For example, you can decide that the proxy object targets "real" price objects instead of proxy prices. You can use the @immutable and @immutableelements annotations to do so.

http://books.zkoss.org/zk-mvvm-book/8.0/syntax/immutable.html