AMF - Problems When Serializing Between Java and ActionScript
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AMF - Problems When Serializing Between Java and ActionScript
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Join For FreeBelow are some tips and tricks when dealing with serialization between Java and ActionScript. I’ve spent some time and encountered some frustrations (especially when I was too tired) trying to understand why the value is not properly sent over the wire so I decided to document all of my mistakes. Over the time I will edit this post to add new insights
- if something seems wrong turn on debugging in services-config.xml
- a property must have a public getter and setter in order to be serialized. I know that is strange (why should I have a setter when it’s not needed?) but that’s it. I do not like it all because sometimes it breaks encapsulation
- you should take care to map the ActionScript class with the corresponding Java class using the metadata. For example [RemoteClass(alias="com.foo.model.MyClass")]
- verify that the ActionScript object is included in the SWF file. If your project does not have a reference to the AS file then it will not be included in the resulting SWF so the Java class will be serialized to a generic object
- you cannot serialize maps that have integers as keys See this bug
- when serializing Hibernate entities be sure that all of them are initialized or use some kind of Open Session in View pattern - or better build a value object to contain only the data you really need.
- a NULL number in Java is converted to 0 in ActionScript
- a Long number from Java cannot be properly converted to Number in ActionScript - you will lose precision, so you should send it packed in a different way
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