com.fasterxml.jackson.databind.deser.BeanDeserializerFactory Maven / Gradle / Ivy

package com.fasterxml.jackson.databind.deser;

import java.util.*;

import com.fasterxml.jackson.annotation.ObjectIdGenerator;
import com.fasterxml.jackson.annotation.ObjectIdGenerators;
import com.fasterxml.jackson.annotation.ObjectIdResolver;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder;
import com.fasterxml.jackson.databind.cfg.DeserializerFactoryConfig;
import com.fasterxml.jackson.databind.deser.impl.*;
import com.fasterxml.jackson.databind.deser.std.ThrowableDeserializer;
import com.fasterxml.jackson.databind.introspect.*;
import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
import com.fasterxml.jackson.databind.jsontype.impl.SubTypeValidator;
import com.fasterxml.jackson.databind.util.ArrayBuilders;
import com.fasterxml.jackson.databind.util.ClassUtil;
import com.fasterxml.jackson.databind.util.SimpleBeanPropertyDefinition;

/**
 * Concrete deserializer factory class that adds full Bean deserializer
 * construction logic using class introspection.
 * Note that factories specifically do not implement any form of caching:
 * aside from configuration they are stateless; caching is implemented
 * by other components.
 *
 * Instances of this class are fully immutable as all configuration is
 * done by using "fluent factories" (methods that construct new factory
 * instances with different configuration, instead of modifying instance).
 */
public class BeanDeserializerFactory
    extends BasicDeserializerFactory
    implements java.io.Serializable // since 2.1
{
    private static final long serialVersionUID = 1;

    /**
     * Signature of Throwable.initCause method.
     */
    private final static Class[] INIT_CAUSE_PARAMS = new Class[] { Throwable.class };

    private final static Class[] NO_VIEWS = new Class[0];


    /*
    /**********************************************************
    /* Life-cycle
    /**********************************************************
     */
    
    /**
     * Globally shareable thread-safe instance which has no additional custom deserializers
     * registered
     */
    public final static BeanDeserializerFactory instance = new BeanDeserializerFactory(
            new DeserializerFactoryConfig());

    public BeanDeserializerFactory(DeserializerFactoryConfig config) {
        super(config);
    }
    
    /**
     * Method used by module registration functionality, to construct a new bean
     * deserializer factory
     * with different configuration settings.
     */
    @Override
    public DeserializerFactory withConfig(DeserializerFactoryConfig config)
    {
        if (_factoryConfig == config) {
            return this;
        }
        /* 22-Nov-2010, tatu: Handling of subtypes is tricky if we do immutable-with-copy-ctor;
         *    and we pretty much have to here either choose between losing subtype instance
         *    when registering additional deserializers, or losing deserializers.
         *    Instead, let's actually just throw an error if this method is called when subtype
         *    has not properly overridden this method; this to indicate problem as soon as possible.
         */
        if (getClass() != BeanDeserializerFactory.class) {
            throw new IllegalStateException("Subtype of BeanDeserializerFactory ("+getClass().getName()
                    +") has not properly overridden method 'withAdditionalDeserializers': can not instantiate subtype with "
                    +"additional deserializer definitions");
        }
        return new BeanDeserializerFactory(config);
    }
    
    /*
    /**********************************************************
    /* DeserializerFactory API implementation
    /**********************************************************
     */

    /**
     * Method that {@link DeserializerCache}s call to create a new
     * deserializer for types other than Collections, Maps, arrays and
     * enums.
     */
    @Override
    public JsonDeserializer