Dwr custom converter

Share this: Twitter Facebook. Like this: Like Loading Written by Jack December 4, at am. Posted in java Tagged with dwr , spring. BigInteger and hessian. Alex February 11, at pm. Mark October 27, at pm.

Thanks for this post. Do you have any idea of how to configure reverse ajax in DWR with spring? Shailendra February 11, at pm. AJ February 12, at am. DuhneL March 6, at am. Hi, I have a User class with private members: id, lastName, and firstName. What is the right way to write dwr:convert, i am doing something like this:. Anonymous March 27, at pm. Kishore March 30, at am.

Converter for these types. More general question, how do I register my converters, in order to make them available system wide? All custom conversion service has to be registered with the FormatterRegistry. Try creating a new configuration and register the conversion service by implementing the WebMvcConfigurer. I suggest to use Autowired and the related dependency injection mechanism of spring to use a single ConversionService instance throughout your application.

The ConversionService will be instantiated within the configuration. All Converters to be available application wide receive an annotation e. On application start a Component FormatterRegistrar Type name itself is a bit misleading, yes it is " Registrar" as it does the registering. And Component as it is fully spring managed and requires dependency injection will receive AutoRegistered List of all annotated Converters.

See this thread for concrete implementation details. We use this mechanism within our project and it works out like a charm. WebMvcConfigurer or any on its implementation is one stop place for any kind of customization in spring boot project. It prvoides various methods, for your Converter requirement.

Just create a new Converter by extending org. Then register it with Spring by your class overriding method org. Its needs to be placed over the convertor class. First, let's look at what dwr. It looks like you can set properties on converter instances using param elements.

I prefer to use a concise format for configuration whenever possible, so our format will be something like "propertyName:includeExcludeProperty1,includeExcludeProperty2 otherProp:more,of,the,same". Supposing this was an include, then when we create the converter for the otherProp property, it will include the more,of,the and same properties and no others.

Got it? TemplateBeanConverter is our original subclass of BeanConverter. Customer class has one attribute of type Boolean the object wrapper, not a boolean primitive. This attribute has three different states that are meaningful to the business logic. It can be true or false, obviously I'm losing that third meaningful "neither of the above" state. Google searching has not been very fruitful, unfortunately. Or might I be doing something wrong in the first place?

Whenever you pass null , asd or anything else you've get null as result. You can try to extend DWR with your own implementation, it could be rather tricky. Or use String instead in your bean with 3 state "true", "false", "null".

It turns out that DWR does handle null values correctly by default. My issue was further up the stack