Package com.fasterxml.jackson.databind.deser.std

Class StdDeserializer<T>

java.lang.Object

com.fasterxml.jackson.databind.JsonDeserializer<T>

com.fasterxml.jackson.databind.deser.std.StdDeserializer<T>

All Implemented Interfaces:

NullValueProvider, ValueInstantiator.Gettable, Serializable

Direct Known Subclasses:

BeanDeserializerBase, ContainerDeserializerBase, DelegatingDeserializer, EnumSetDeserializer, FailingDeserializer, JsonNodeDeserializer, NullifyingDeserializer, PrimitiveArrayDeserializers, ReferenceTypeDeserializer, StdDelegatingDeserializer, StdNodeBasedDeserializer, StdScalarDeserializer, StringArrayDeserializer, UnsupportedTypeDeserializer, UntypedObjectDeserializer, UntypedObjectDeserializer.Vanilla

public abstract class StdDeserializer<T>
extends JsonDeserializer<T>
implements Serializable, ValueInstantiator.Gettable

Base class for common deserializers. Contains shared base functionality for dealing with primitive values, such as (re)parsing from String.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.fasterxml.jackson.databind.JsonDeserializer

JsonDeserializer.None

Method Summary

Modifier and Type	Method	Description
Object	deserializeWithType(JsonParser p, DeserializationContext ctxt, TypeDeserializer typeDeserializer)	Base implementation that does not assume specific type inclusion mechanism.
final Class<?>	getValueClass()	Deprecated. Since 2.3 use handledType() instead
ValueInstantiator	getValueInstantiator()
JavaType	getValueType()	Exact structured type this deserializer handles, if known.
JavaType	getValueType(DeserializationContext ctxt)	Convenience method for getting handled type as JavaType, regardless of whether deserializer has one already resolved (and accessible via getValueType()) or not: equivalent to:
Class<?>	handledType()	Method for accessing concrete physical type of values this deserializer produces.

Methods inherited from class com.fasterxml.jackson.databind.JsonDeserializer

deserialize, deserialize, deserializeWithType, findBackReference, getAbsentValue, getDelegatee, getEmptyAccessPattern, getEmptyValue, getEmptyValue, getKnownPropertyNames, getNullAccessPattern, getNullValue, getNullValue, getObjectIdReader, isCachable, logicalType, replaceDelegatee, supportsUpdate, unwrappingDeserializer

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

handledType

public Class<?> handledType()

Description copied from class: JsonDeserializer

Method for accessing concrete physical type of values this deserializer produces. Note that this information is not guaranteed to be exact -- it may be a more generic (super-type) -- but it should not be incorrect (return a non-related type).

Default implementation will return null, which means almost same same as returning Object.class would; that is, that nothing is known about handled type.

Overrides:

handledType in class JsonDeserializer<T>

Returns:

Physical type of values this deserializer produces, if known; null if not

getValueClass

@Deprecated
public final Class<?> getValueClass()

Deprecated.

Since 2.3 use handledType() instead

getValueType

public JavaType getValueType()

Exact structured type this deserializer handles, if known.

getValueType

public JavaType getValueType(DeserializationContext ctxt)

Convenience method for getting handled type as JavaType, regardless of whether deserializer has one already resolved (and accessible via getValueType()) or not: equivalent to:

   if (getValueType() != null) {
        return getValueType();
   }
   return ctxt.constructType(handledType());

Since:

2.10

getValueInstantiator

public ValueInstantiator getValueInstantiator()

Specified by:

getValueInstantiator in interface ValueInstantiator.Gettable

Since:

2.12

deserializeWithType

public Object deserializeWithType(JsonParser p,
 DeserializationContext ctxt,
 TypeDeserializer typeDeserializer)
                           throws IOException

Base implementation that does not assume specific type inclusion mechanism. Sub-classes are expected to override this method if they are to handle type information.

Overrides:

deserializeWithType in class JsonDeserializer<T>

Parameters:

typeDeserializer - Deserializer to use for handling type information

Throws:

IOException