Package org.apache.kafka.streams.kstream
Interface ValueTransformerWithKeySupplier<K,V,VR>
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- Type Parameters:
K- key typeV- value typeVR- transformed value type
- All Superinterfaces:
ConnectedStoreProvider,Supplier<ValueTransformerWithKey<K,V,VR>>
public interface ValueTransformerWithKeySupplier<K,V,VR> extends ConnectedStoreProvider, Supplier<ValueTransformerWithKey<K,V,VR>>
AValueTransformerWithKeySupplierinterface which can create one or moreValueTransformerWithKeyinstances.The supplier should always generate a new instance each time
get()gets called. Creating a singleValueTransformerWithKeyobject and returning the same object reference inget()would be a violation of the supplier pattern and leads to runtime exceptions.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description ValueTransformerWithKey<K,V,VR>get()Return a newly constructedValueTransformerWithKeyinstance.-
Methods inherited from interface org.apache.kafka.streams.processor.ConnectedStoreProvider
stores
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Method Detail
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get
ValueTransformerWithKey<K,V,VR> get()
Return a newly constructedValueTransformerWithKeyinstance. The supplier should always generate a new instance each timeget()gets called.Creating a single
ValueTransformerWithKeyobject and returning the same object reference inget()is a violation of the supplier pattern and leads to runtime exceptions.- Specified by:
getin interfaceSupplier<K>- Returns:
- a new
ValueTransformerWithKeyinstance
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