org.springframework.web.portlet.HandlerAdapter |
Known Indirect Subclasses |
Portlet MVC framework SPI interface, allowing parameterization of core MVC workflow.
Interface that must be implemented for each handler type to handle a request. This interface is used to allow the DispatcherPortlet to be indefinitely extensible. The DispatcherPortlet accesses all installed handlers through this interface, meaning that it does not contain code specific to any handler type.
Note that a handler can be of type Object. This is to enable handlers from other frameworks to be integrated with this framework without custom coding.
This interface is not intended for application developers. It is available to handlers who want to develop their own web workflow.
Note: Implementations can implement the Ordered interface to be able to specify a sorting order and thus a priority for getting applied by DispatcherPortlet. Non-Ordered instances get treated as lowest priority.
Public Methods | |||||||||||
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Use the given handler to handle this action request.
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Use the given handler to handle this event request.
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Use the given handler to handle this render request.
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Use the given handler to handle this resource request.
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Given a handler instance, return whether or not this HandlerAdapter can
support it.
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Use the given handler to handle this action request. The workflow that is required may vary widely.
request | current action request |
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response | current action response |
handler | handler to use. This object must have previously been passed
to the supports method of this interface, which must have
returned true. |
Exception | in case of errors |
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Use the given handler to handle this event request. The workflow that is required may vary widely.
request | current action request |
---|---|
response | current action response |
handler | handler to use. This object must have previously been passed
to the supports method of this interface, which must have
returned true. |
Exception | in case of errors |
---|
Use the given handler to handle this render request. The workflow that is required may vary widely.
request | current render request |
---|---|
response | current render response |
handler | handler to use. This object must have previously been passed
to the supports method of this interface, which must have
returned true . |
null
if the request has been handled directlyException | in case of errors |
---|
Use the given handler to handle this resource request. The workflow that is required may vary widely.
request | current render request |
---|---|
response | current render response |
handler | handler to use. This object must have previously been passed
to the supports method of this interface, which must have
returned true . |
null
if the request has been handled directlyException | in case of errors |
---|
Given a handler instance, return whether or not this HandlerAdapter can support it. Typical HandlerAdapters will base the decision on the handler type. HandlerAdapters will usually only support one handler type each.
A typical implementation:
return (handler instanceof MyHandler);
handler | handler object to check |
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