Class PwaHandler
java.lang.Object
com.vaadin.flow.server.communication.PwaHandler
- All Implemented Interfaces:
RequestHandler
,Serializable
Handles serving of PWA resources.
Resources include:
- manifest
- offline fallback page
- icons
For internal use only. May be renamed or removed in a future release.
- Since:
- 1.2
- See Also:
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Field Summary
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Constructor Summary
ConstructorDescriptionPwaHandler
(SerializableSupplier<PwaRegistry> pwaRegistryGetter) Creates PwaHandler fromPwaRegistry
getter. -
Method Summary
Modifier and TypeMethodDescriptionboolean
handleRequest
(VaadinSession session, VaadinRequest request, VaadinResponse response) Called when a request needs to be handled.
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Field Details
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SW_RUNTIME_PRECACHE_PATH
- See Also:
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DEFAULT_OFFLINE_STUB_PATH
- See Also:
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Constructor Details
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PwaHandler
Creates PwaHandler fromPwaRegistry
getter.- Parameters:
pwaRegistryGetter
- PWA registry getter
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Method Details
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handleRequest
public boolean handleRequest(VaadinSession session, VaadinRequest request, VaadinResponse response) throws IOException Description copied from interface:RequestHandler
Called when a request needs to be handled. If a response is written, this method should returntrue
to indicate that no more request handlers should be invoked for the request.Note that request handlers by default do not lock the session. If you are using VaadinSession or anything inside the VaadinSession you must ensure the session is locked. This can be done by extending
SynchronizedRequestHandler
or by usingVaadinSession.accessSynchronously(Command)
orUI.accessSynchronously(Command)
.- Specified by:
handleRequest
in interfaceRequestHandler
- Parameters:
session
- The session for the requestrequest
- The request to handleresponse
- The response object to which a response can be written.- Returns:
- true if a response has been written and no further request handlers should be called, otherwise false
- Throws:
IOException
- If an IO error occurred
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