com.fasterxml.jackson.databind.deser.impl.ObjectIdValueProperty Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ehcache Show documentation

Ehcache is an open source, standards-based cache used to boost performance, offload the database and simplify scalability. Ehcache is robust, proven and full-featured and this has made it the most widely-used Java-based cache.

There is a newer version: 2.10.9.2

Show newest version

package com.fasterxml.jackson.databind.deser.impl;

import java.io.IOException;
import java.lang.annotation.Annotation;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.deser.*;
import com.fasterxml.jackson.databind.introspect.AnnotatedMember;

/**
 * Specialized {@link SettableBeanProperty} implementation used
 * for virtual property that represents Object Id that is used
 * for some POJO types (or properties).
 */
public final class ObjectIdValueProperty
    extends SettableBeanProperty
{
    private static final long serialVersionUID = 1L;

    protected final ObjectIdReader _objectIdReader;

    @Deprecated // since 2.2
    public ObjectIdValueProperty(ObjectIdReader objectIdReader) {
        this(objectIdReader, PropertyMetadata.STD_REQUIRED);
    }
    
    public ObjectIdValueProperty(ObjectIdReader objectIdReader,
            PropertyMetadata metadata)
    {
        super(objectIdReader.propertyName, objectIdReader.getIdType(), metadata,
                objectIdReader.getDeserializer());
        _objectIdReader = objectIdReader;
    }

    protected ObjectIdValueProperty(ObjectIdValueProperty src, JsonDeserializer deser)
    {
        super(src, deser);
        _objectIdReader = src._objectIdReader;
    }

    @Deprecated // since 2.3
    protected ObjectIdValueProperty(ObjectIdValueProperty src, PropertyName newName) {
        super(src, newName);
        _objectIdReader = src._objectIdReader;
    }
    
    @Deprecated // since 2.3
    protected ObjectIdValueProperty(ObjectIdValueProperty src, String newName) {
        this(src, new PropertyName(newName));
    }

    @Override
    public ObjectIdValueProperty withName(PropertyName newName) {
        return new ObjectIdValueProperty(this, newName);
    }

    @Override
    public ObjectIdValueProperty withValueDeserializer(JsonDeserializer deser) {
        return new ObjectIdValueProperty(this, deser);
    }
    
    // // // BeanProperty impl
    
    @Override
    public  A getAnnotation(Class acls) {
        return null;
    }

    @Override public AnnotatedMember getMember() {  return null; }

    /*
    /**********************************************************
    /* Deserialization methods
    /**********************************************************
     */

    @Override
    public void deserializeAndSet(JsonParser jp, DeserializationContext ctxt,
            Object instance)
        throws IOException, JsonProcessingException
    {
        deserializeSetAndReturn(jp, ctxt, instance);
    }

    @Override
    public Object deserializeSetAndReturn(JsonParser jp,
    		DeserializationContext ctxt, Object instance)
        throws IOException, JsonProcessingException
    {
        // note: no null checks (unlike usually); deserializer should fail if one found
        Object id = _valueDeserializer.deserialize(jp, ctxt);
        ReadableObjectId roid = ctxt.findObjectId(id, _objectIdReader.generator);
        roid.bindItem(instance);
        // also: may need to set a property value as well
        SettableBeanProperty idProp = _objectIdReader.idProperty;
        if (idProp != null) {
            return idProp.setAndReturn(instance, id);
        }
        return instance;
    }

    @Override
    public void set(Object instance, Object value) throws IOException {
        setAndReturn(instance, value);
    }

    @Override
    public Object setAndReturn(Object instance, Object value)
        throws IOException
    {
        SettableBeanProperty idProp = _objectIdReader.idProperty;
        if (idProp == null) {
            throw new UnsupportedOperationException(
                    "Should not call set() on ObjectIdProperty that has no SettableBeanProperty");
        }
        return idProp.setAndReturn(instance, value);
    }
}

Related Artifacts