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| In Wicket a resource is an entity that can interact with the current request and response and It must implement interface @org.apache.wicket.request.resource.IResource@. This interface defines just method respond(IResource.Attributes attributes) where the nested class IResource. Attributes provides access to request, response and page parameters objects. |
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| Resources can be static or dynamic. Static resources don't entail any computational effort to be generated and they generally correspond to a resource on the filesystem. On the contrary dynamic resources are generated on the fly when they are requested, following a specific logic coded inside them. |
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| An example of dynamic resource is the built-in class CaptchaImageResource in package @org.apache.wicket.extensions.markup.html.captcha@ which generates a captcha image each time is rendered. |
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| As we will see in [paragraph 15.10|guide:resources_10], developers can build custom resources extending base class @org.apache.wicket.request.resource.AbstractResource@. |
