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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC
package com.fasterxml.jackson.databind.deser.impl;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.deser.NullValueProvider;
import com.fasterxml.jackson.databind.deser.SettableBeanProperty;
import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
import com.fasterxml.jackson.databind.introspect.AnnotatedMethod;
import com.fasterxml.jackson.databind.introspect.BeanPropertyDefinition;
import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
import com.fasterxml.jackson.databind.util.Annotations;
/**
* This concrete sub-class implements Collection or Map property that is
* indirectly by getting the property value and directly modifying it.
*/
public final class SetterlessProperty
extends SettableBeanProperty
{
private static final long serialVersionUID = 1L;
protected final AnnotatedMethod _annotated;
/**
* Get method for accessing property value used to access property
* (of Collection or Map type) to modify.
*/
protected final Method _getter;
public SetterlessProperty(BeanPropertyDefinition propDef, JavaType type,
TypeDeserializer typeDeser, Annotations contextAnnotations, AnnotatedMethod method)
{
super(propDef, type, typeDeser, contextAnnotations);
_annotated = method;
_getter = method.getAnnotated();
}
protected SetterlessProperty(SetterlessProperty src, JsonDeserializer> deser,
NullValueProvider nva) {
super(src, deser, nva);
_annotated = src._annotated;
_getter = src._getter;
}
protected SetterlessProperty(SetterlessProperty src, PropertyName newName) {
super(src, newName);
_annotated = src._annotated;
_getter = src._getter;
}
@Override
public SettableBeanProperty withName(PropertyName newName) {
return new SetterlessProperty(this, newName);
}
@Override
public SettableBeanProperty withValueDeserializer(JsonDeserializer> deser) {
if (_valueDeserializer == deser) {
return this;
}
// 07-May-2019, tatu: As per [databind#2303], must keep VD/NVP in-sync if they were
NullValueProvider nvp = (_valueDeserializer == _nullProvider) ? deser : _nullProvider;
return new SetterlessProperty(this, deser, nvp);
}
@Override
public SettableBeanProperty withNullProvider(NullValueProvider nva) {
return new SetterlessProperty(this, _valueDeserializer, nva);
}
@Override
public void fixAccess(DeserializationConfig config) {
_annotated.fixAccess(
config.isEnabled(MapperFeature.OVERRIDE_PUBLIC_ACCESS_MODIFIERS));
}
/*
/**********************************************************
/* BeanProperty impl
/**********************************************************
*/
@Override
public A getAnnotation(Class acls) {
return _annotated.getAnnotation(acls);
}
@Override public AnnotatedMember getMember() { return _annotated; }
/*
/**********************************************************
/* Overridden methods
/**********************************************************
*/
@Override
public final void deserializeAndSet(JsonParser p, DeserializationContext ctxt,
Object instance) throws IOException
{
if (p.hasToken(JsonToken.VALUE_NULL)) {
// Hmmh. Is this a problem? We won't be setting anything, so it's
// equivalent of empty Collection/Map in this case
return;
}
// For [databind#501] fix we need to implement this but:
if (_valueTypeDeserializer != null) {
ctxt.reportBadDefinition(getType(), String.format(
"Problem deserializing 'setterless' property (\"%s\"): no way to handle typed deser with setterless yet",
getName()));
// return _valueDeserializer.deserializeWithType(p, ctxt, _valueTypeDeserializer);
}
// Ok: then, need to fetch Collection/Map to modify:
Object toModify;
try {
toModify = _getter.invoke(instance, (Object[]) null);
} catch (Exception e) {
_throwAsIOE(p, e);
return; // never gets here
}
// Note: null won't work, since we can't then inject anything in. At least
// that's not good in common case. However, theoretically the case where
// we get JSON null might be compatible. If so, implementation could be changed.
if (toModify == null) {
ctxt.reportBadDefinition(getType(), String.format(
"Problem deserializing 'setterless' property '%s': get method returned null",
getName()));
}
_valueDeserializer.deserialize(p, ctxt, toModify);
}
@Override
public Object deserializeSetAndReturn(JsonParser p,
DeserializationContext ctxt, Object instance) throws IOException
{
deserializeAndSet(p, ctxt, instance);
return instance;
}
@Override
public final void set(Object instance, Object value) throws IOException {
throw new UnsupportedOperationException("Should never call `set()` on setterless property ('"+getName()+"')");
}
@Override
public Object setAndReturn(Object instance, Object value) throws IOException
{
set(instance, value);
return instance;
}
}
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