Interface ValueInstantiators
- All Known Implementing Classes:
SimpleValueInstantiators
,ValueInstantiators.Base
public interface ValueInstantiators
Interface for providers of
ValueInstantiator
instances.
Implemented when an object wants to provide custom value instantiators,
usually to support custom value types with alternate constructors, or
which need specified post-processing after construction but before
binding data.-
Nested Class Summary
Modifier and TypeInterfaceDescriptionstatic class
Basic "NOP" implementation that can be used as the base class for custom implementations. -
Method Summary
Modifier and TypeMethodDescriptionfindValueInstantiator
(DeserializationConfig config, BeanDescription beanDesc, ValueInstantiator defaultInstantiator) Method called to find theValueInstantiator
to use for creating instances of specified type during deserialization.
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Method Details
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findValueInstantiator
ValueInstantiator findValueInstantiator(DeserializationConfig config, BeanDescription beanDesc, ValueInstantiator defaultInstantiator) Method called to find theValueInstantiator
to use for creating instances of specified type during deserialization. Note that a default value instantiator is always created first and passed; if an implementation does not want to modify or replace it, it has to return passed instance as is (returning null is an error)- Parameters:
config
- Deserialization configuration in usebeanDesc
- Additional information about POJO type to be instantiateddefaultInstantiator
- Instantiator that will be used if no changes are made; passed to allow custom instances to use annotation-provided information (note, however, that earlierValueInstantiators
may have changed it to a custom instantiator already)- Returns:
- Instantiator to use; either
defaultInstantiator
that was passed, or a custom variant; cannot be null.
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