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com.vaadin.flow.data.provider.
Package com.vaadin.flow.data.provider
Interface CallbackDataProvider.FetchCallback<T,F>
Type Parameters:
T - the type of the items to fetch
F - the type of the optional filter in the query,
Void if filtering is not supported
All Superinterfaces:
Enclosing class:
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface
public static interface CallbackDataProvider.FetchCallback<T,F>
extends Serializable
Callback interface for fetching a stream of items from a backend based on a query.
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Method Summary
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Method Details
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fetch
Fetches a stream of items based on a query. The query defines the paging of the items to fetch through
Query.getOffset()andQuery.getLimit(), the sorting throughQuery.getSortOrders()and optionally also any filtering to use throughQuery.getFilter().Parameters:
query- the query that defines which items to fetchReturns:
a stream of items
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