com.fasterxml.jackson.databind.ser.impl.AttributePropertyWriter Maven / Gradle / Ivy
package com.fasterxml.jackson.databind.ser.impl;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.cfg.MapperConfig;
import com.fasterxml.jackson.databind.introspect.AnnotatedClass;
import com.fasterxml.jackson.databind.introspect.BeanPropertyDefinition;
import com.fasterxml.jackson.databind.ser.VirtualBeanPropertyWriter;
import com.fasterxml.jackson.databind.util.Annotations;
/**
* {@link VirtualBeanPropertyWriter} implementation used for
* {@link com.fasterxml.jackson.databind.annotation.JsonAppend},
* to serialize properties backed-by dynamically assignable attribute
* values.
*
* @since 2.5
*/
public class AttributePropertyWriter
extends VirtualBeanPropertyWriter
{
private static final long serialVersionUID = 1;
protected final String _attrName;
/*
/**********************************************************
/* Life-cycle
/**********************************************************
*/
protected AttributePropertyWriter(String attrName, BeanPropertyDefinition propDef,
Annotations contextAnnotations, JavaType declaredType) {
this(attrName, propDef, contextAnnotations, declaredType, propDef.findInclusion());
}
protected AttributePropertyWriter(String attrName, BeanPropertyDefinition propDef,
Annotations contextAnnotations, JavaType declaredType,
JsonInclude.Value inclusion)
{
super(propDef, contextAnnotations, declaredType,
/* value serializer */ null, /* type serializer */ null, /* ser type */ null,
inclusion,
// 10-Oct-2016, tatu: Could enable per-view settings too in future
null);
_attrName = attrName;
}
public static AttributePropertyWriter construct(String attrName,
BeanPropertyDefinition propDef,
Annotations contextAnnotations,
JavaType declaredType)
{
return new AttributePropertyWriter(attrName, propDef,
contextAnnotations, declaredType);
}
protected AttributePropertyWriter(AttributePropertyWriter base) {
super(base);
_attrName = base._attrName;
}
/**
* Since this method should typically not be called on this sub-type,
* default implementation simply throws an {@link IllegalStateException}.
*/
@Override
public VirtualBeanPropertyWriter withConfig(MapperConfig config,
AnnotatedClass declaringClass, BeanPropertyDefinition propDef, JavaType type) {
throw new IllegalStateException("Should not be called on this type");
}
/*
/**********************************************************
/* Overrides for actual serialization, value access
/**********************************************************
*/
@Override
protected Object value(Object bean, JsonGenerator jgen, SerializerProvider prov) throws Exception {
return prov.getAttribute(_attrName);
}
}