Package org.eclipse.yasson.internal.serializer

Class AbstractContainerDeserializer<T>

java.lang.Object

org.eclipse.yasson.internal.serializer.AbstractItem<T>

org.eclipse.yasson.internal.serializer.AbstractContainerDeserializer<T>

Type Parameters:

T - container type

All Implemented Interfaces:

jakarta.json.bind.serializer.JsonbDeserializer<T>, RuntimeTypeInfo, CurrentItem<T>

Direct Known Subclasses:

AbstractArrayDeserializer, AbstractJsonpDeserializer, MapDeserializer, UserDeserializerDeserializer

public abstract class AbstractContainerDeserializer<T>
extends AbstractItem<T>
implements jakarta.json.bind.serializer.JsonbDeserializer<T>

Base class for all deserializers producing non single value result. Deserialize bean objects, collections, maps, arrays, etc.

Method Summary

Modifier and Type	Method	Description
abstract void	appendResult(java.lang.Object result)	After object is transitively deserialized from JSON, "append" it to its wrapper.
protected java.lang.Object	convertNullToOptionalEmpty(java.lang.reflect.Type propertyType, java.lang.Object value)	If value is null and property model type is one of Optional, OptionalDouble, OptionalInt, or OptionalLong, value of corresponding Optional#empty() is returned.
T	deserialize(jakarta.json.stream.JsonParser parser, jakarta.json.bind.serializer.DeserializationContext context, java.lang.reflect.Type rtType)	Drives JSONP JsonParser to deserialize json document.
protected void	deserializeInternal(JsonbParser parser, Unmarshaller context)	Deserialize specific item type.
protected abstract void	deserializeNext(jakarta.json.stream.JsonParser parser, Unmarshaller context)	Determine class mappings and create an instance of a new deserializer.
protected abstract T	getInstance(Unmarshaller unmarshaller)	Creates and initializes an instance of deserializing item.
protected abstract JsonbRiParser.LevelContext	moveToFirst(JsonbParser parser)	Move to first event for current deserializer structure.
protected jakarta.json.bind.serializer.JsonbDeserializer<?>	newCollectionOrMapItem(java.lang.reflect.Type valueType, JsonbContext ctx)	Returns new deserialization builder for specific collection or map.
protected DeserializerBuilder	newUnmarshallerItemBuilder(JsonbContext ctx)	Returns new deserialization builder for specific item.

Methods inherited from class org.eclipse.yasson.internal.serializer.AbstractItem

getClassModel, getRuntimeType, getWrapper

Methods inherited from class java.lang.Object

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

Method Detail

deserialize

public final T deserialize(jakarta.json.stream.JsonParser parser,
                           jakarta.json.bind.serializer.DeserializationContext context,
                           java.lang.reflect.Type rtType)

Drives JSONP JsonParser to deserialize json document.

Specified by:

deserialize in interface jakarta.json.bind.serializer.JsonbDeserializer<T>

Parameters:

parser - JSON parser.

context - Deseriaization context.

rtType - Runtime type.

Returns:

Instance of a type for this item.

getInstance

protected abstract T getInstance(Unmarshaller unmarshaller)

Creates and initializes an instance of deserializing item.

Parameters:

unmarshaller - Current deserialization context.

Returns:

An instance of deserializing item.

deserializeInternal

protected void deserializeInternal(JsonbParser parser,
                                   Unmarshaller context)

Deserialize specific item type.

Parameters:

parser - jsonb parser

context - context

deserializeNext

protected abstract void deserializeNext(jakarta.json.stream.JsonParser parser,
                                        Unmarshaller context)

Determine class mappings and create an instance of a new deserializer. Currently processed deserializer is pushed to stack, for waiting till new object is finished.

Parameters:

parser - Json parser.

context - Current unmarshalling context.

moveToFirst

protected abstract JsonbRiParser.LevelContext moveToFirst(JsonbParser parser)

Move to first event for current deserializer structure.

Parameters:

parser - Json parser.

Returns:

First event.

newUnmarshallerItemBuilder

protected DeserializerBuilder newUnmarshallerItemBuilder(JsonbContext ctx)

Returns new deserialization builder for specific item.

Parameters:

ctx - jsonb context

Returns:

deserialization builder

newCollectionOrMapItem

protected jakarta.json.bind.serializer.JsonbDeserializer<?> newCollectionOrMapItem(java.lang.reflect.Type valueType,
                                                                                   JsonbContext ctx)

Returns new deserialization builder for specific collection or map.

Parameters:

valueType - value type

ctx - jsonb context

Returns:

deserialization builder

convertNullToOptionalEmpty

protected java.lang.Object convertNullToOptionalEmpty(java.lang.reflect.Type propertyType,
                                                      java.lang.Object value)

If value is null and property model type is one of Optional, OptionalDouble, OptionalInt, or OptionalLong, value of corresponding Optional#empty() is returned.

Parameters:

propertyType - property type

value - value to set

Returns:

empty optional if applies

appendResult

public abstract void appendResult(java.lang.Object result)

After object is transitively deserialized from JSON, "append" it to its wrapper. In case of a field set value to field, in case of collections or other embedded objects use methods provided.

Parameters:

result - An instance result of an item.