com.fasterxml.jackson.databind.deser.SettableBeanProperty#withValueDeserializer ( )源码实例Demo

protected SettableBeanProperty _rename(SettableBeanProperty prop, NameTransformer xf)
{
    if (prop == null) {
        return prop;
    }
    String newName = xf.transform(prop.getName());
    prop = prop.withSimpleName(newName);
    JsonDeserializer<?> deser = prop.getValueDeserializer();
    if (deser != null) {
        @SuppressWarnings("unchecked")
        JsonDeserializer<Object> newDeser = (JsonDeserializer<Object>)
            deser.unwrappingDeserializer(xf);
        if (newDeser != deser) {
            prop = prop.withValueDeserializer(newDeser);
        }
    }
    return prop;
}
 

/**
 * Factory method used for building actual instances to be used with POJOS:
 * resolves deserializers, checks for "null values".
 *
 * @since 2.9
 */
public static PropertyBasedCreator construct(DeserializationContext ctxt,
        ValueInstantiator valueInstantiator, SettableBeanProperty[] srcCreatorProps,
        BeanPropertyMap allProperties)
    throws JsonMappingException
{
    final int len = srcCreatorProps.length;
    SettableBeanProperty[] creatorProps = new SettableBeanProperty[len];
    for (int i = 0; i < len; ++i) {
        SettableBeanProperty prop = srcCreatorProps[i];
        if (!prop.hasValueDeserializer()) {
            prop = prop.withValueDeserializer(ctxt.findContextualValueDeserializer(prop.getType(), prop));
        }
        creatorProps[i] = prop;
    }
    return new PropertyBasedCreator(ctxt, valueInstantiator, creatorProps,
            allProperties.isCaseInsensitive(),
            allProperties.hasAliases());
}
 

/**
 * Factory method used for building actual instances to be used with types
 * OTHER than POJOs.
 * resolves deserializers and checks for "null values".
 *
 * @since 2.9
 */
public static PropertyBasedCreator construct(DeserializationContext ctxt,
        ValueInstantiator valueInstantiator, SettableBeanProperty[] srcCreatorProps,
        boolean caseInsensitive)
    throws JsonMappingException
{
    final int len = srcCreatorProps.length;
    SettableBeanProperty[] creatorProps = new SettableBeanProperty[len];
    for (int i = 0; i < len; ++i) {
        SettableBeanProperty prop = srcCreatorProps[i];
        if (!prop.hasValueDeserializer()) {
            prop = prop.withValueDeserializer(ctxt.findContextualValueDeserializer(prop.getType(), prop));
        }
        creatorProps[i] = prop;
    }
    return new PropertyBasedCreator(ctxt, valueInstantiator, creatorProps, 
            caseInsensitive, false);
}
 

public UnwrappedPropertyHandler renameAll(NameTransformer transformer)
{
    ArrayList<SettableBeanProperty> newProps = new ArrayList<SettableBeanProperty>(_properties.size());
    for (SettableBeanProperty prop : _properties) {
        String newName = transformer.transform(prop.getName());
        prop = prop.withSimpleName(newName);
        JsonDeserializer<?> deser = prop.getValueDeserializer();
        if (deser != null) {
            @SuppressWarnings("unchecked")
            JsonDeserializer<Object> newDeser = (JsonDeserializer<Object>)
                deser.unwrappingDeserializer(transformer);
            if (newDeser != deser) {
                prop = prop.withValueDeserializer(newDeser);
            }
        }
        newProps.add(prop);
    }
    return new UnwrappedPropertyHandler(newProps);
}