com.fasterxml.jackson.datatype.hibernate4

Class PersistentCollectionSerializer

java.lang.Object

com.fasterxml.jackson.databind.JsonSerializer<Object>

com.fasterxml.jackson.datatype.hibernate4.PersistentCollectionSerializer

All Implemented Interfaces:

com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitable, com.fasterxml.jackson.databind.ser.ContextualSerializer

public class PersistentCollectionSerializer
extends com.fasterxml.jackson.databind.JsonSerializer<Object>
implements com.fasterxml.jackson.databind.ser.ContextualSerializer

Wrapper serializer used to handle aspects of lazy loading that can be used for Hibernate collection datatypes; which includes both Collection and Map types (unlike in JDK).

Nested Class Summary

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

com.fasterxml.jackson.databind.JsonSerializer.None

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	_forceLazyLoading Whether loading of values is forced for lazy references.
protected com.fasterxml.jackson.databind.JsonSerializer<Object>	_serializer Serializer that does actual value serialization when value is available (either already or with forced access).

Constructor Summary

Constructors

Constructor and Description
PersistentCollectionSerializer(boolean forceLazyLoading, com.fasterxml.jackson.databind.JsonSerializer<?> serializer)

Method Summary

Methods

Modifier and Type	Method and Description
com.fasterxml.jackson.databind.JsonSerializer<?>	createContextual(com.fasterxml.jackson.databind.SerializerProvider provider, com.fasterxml.jackson.databind.BeanProperty property) We need to resolve actual serializer once we know the context; specifically must know type of property being serialized.
protected Object	findLazyValue(org.hibernate.collection.spi.PersistentCollection coll)
boolean	isEmpty(Object value)
void	serialize(Object value, com.fasterxml.jackson.core.JsonGenerator jgen, com.fasterxml.jackson.databind.SerializerProvider provider)
void	serializeWithType(Object value, com.fasterxml.jackson.core.JsonGenerator jgen, com.fasterxml.jackson.databind.SerializerProvider provider, com.fasterxml.jackson.databind.jsontype.TypeSerializer typeSer)
protected boolean	usesLazyLoading(com.fasterxml.jackson.databind.BeanProperty property) Method called to see whether given property indicates it uses lazy resolution of reference contained.

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

acceptJsonFormatVisitor, getDelegatee, handledType, isUnwrappingSerializer, replaceDelegatee, unwrappingSerializer, usesObjectId

Methods inherited from class java.lang.Object

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

Field Detail

_forceLazyLoading

protected final boolean _forceLazyLoading

Whether loading of values is forced for lazy references.

_serializer

protected final com.fasterxml.jackson.databind.JsonSerializer<Object> _serializer

Serializer that does actual value serialization when value is available (either already or with forced access).

Constructor Detail

PersistentCollectionSerializer

public PersistentCollectionSerializer(boolean forceLazyLoading,
                              com.fasterxml.jackson.databind.JsonSerializer<?> serializer)

Method Detail

createContextual

public com.fasterxml.jackson.databind.JsonSerializer<?> createContextual(com.fasterxml.jackson.databind.SerializerProvider provider,
                                                                com.fasterxml.jackson.databind.BeanProperty property)
                                                                  throws com.fasterxml.jackson.databind.JsonMappingException

We need to resolve actual serializer once we know the context; specifically must know type of property being serialized. If not known

Specified by:

createContextual in interface com.fasterxml.jackson.databind.ser.ContextualSerializer

Throws:

com.fasterxml.jackson.databind.JsonMappingException

isEmpty

public boolean isEmpty(Object value)

Overrides:

isEmpty in class com.fasterxml.jackson.databind.JsonSerializer<Object>

serialize

public void serialize(Object value,
             com.fasterxml.jackson.core.JsonGenerator jgen,
             com.fasterxml.jackson.databind.SerializerProvider provider)
               throws IOException,
                      com.fasterxml.jackson.core.JsonProcessingException

Specified by:

serialize in class com.fasterxml.jackson.databind.JsonSerializer<Object>

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException

serializeWithType

public void serializeWithType(Object value,
                     com.fasterxml.jackson.core.JsonGenerator jgen,
                     com.fasterxml.jackson.databind.SerializerProvider provider,
                     com.fasterxml.jackson.databind.jsontype.TypeSerializer typeSer)
                       throws IOException,
                              com.fasterxml.jackson.core.JsonProcessingException

Overrides:

serializeWithType in class com.fasterxml.jackson.databind.JsonSerializer<Object>

Throws:

IOException

com.fasterxml.jackson.core.JsonProcessingException

findLazyValue

protected Object findLazyValue(org.hibernate.collection.spi.PersistentCollection coll)

usesLazyLoading

protected boolean usesLazyLoading(com.fasterxml.jackson.databind.BeanProperty property)

Method called to see whether given property indicates it uses lazy resolution of reference contained.