Package org.codehaus.jackson.map
Interface ContextualDeserializer<T>
- Type Parameters:
T
- Type of deserializer to contextualize
public interface ContextualDeserializer<T>
Add-on interface that
JsonDeserializer
s can implement to get a callback
that can be used to create contextual instances of deserializer to use for
handling properties of supported type. This can be useful
for deserializers that can be configured by annotations, or should otherwise
have differing behavior depending on what kind of property is being deserialized.- Since:
- 1.7
-
Method Summary
Modifier and TypeMethodDescriptioncreateContextual
(DeserializationConfig config, BeanProperty property) Method called to see if a different (or differently configured) deserializer is needed to deserialize values of specified property.
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Method Details
-
createContextual
JsonDeserializer<T> createContextual(DeserializationConfig config, BeanProperty property) throws JsonMappingException Method called to see if a different (or differently configured) deserializer is needed to deserialize values of specified property. Note that instance that this method is called on is typically shared one and as a result method should NOT modify this instance but rather construct and return a new instance. This instance should only be returned as-is, in case it is already suitable for use.- Parameters:
config
- Current deserialization configurationproperty
- Method, field or constructor parameter that represents the property (and is used to assign deserialized value). Should be available; but there may be cases where caller can not provide it and null is passed instead (in which case impls usually pass 'this' deserializer as is)- Returns:
- Deserializer to use for deserializing values of specified property; may be this instance or a new instance.
- Throws:
JsonMappingException
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