com.fasterxml.jackson.annotation.SimpleObjectIdResolver Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of wildfly-client-all

This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

There is a newer version: 35.0.0.Beta1

Show newest version

package com.fasterxml.jackson.annotation;

import java.util.HashMap;
import java.util.Map;

import com.fasterxml.jackson.annotation.ObjectIdGenerator.IdKey;

/**
 * Simple implementation of {@link ObjectIdResolver}
 * 
 * @author Pascal Gélinas
 */
public class SimpleObjectIdResolver implements ObjectIdResolver {
    protected Map _items;

    public SimpleObjectIdResolver() { }

    @Override
    public void bindItem(IdKey id, Object ob)
    {
        if (_items == null) {
            _items = new HashMap();
        } else {
            Object old = _items.get(id);
            if (old != null) {
                // 11-Nov-2020, tatu: As per [annotations#180] allow duplicate calls:
                if (old == ob) {
                    return;
                }
                throw new IllegalStateException("Already had POJO for id (" + id.key.getClass().getName() + ") [" + id
                        + "]");
            }
        }
        _items.put(id, ob);
    }

    @Override
    public Object resolveId(IdKey id) {
        return (_items == null) ? null : _items.get(id);
    }

    @Override
    public boolean canUseFor(ObjectIdResolver resolverType) {
        return resolverType.getClass() == getClass();
    }

    @Override
    public ObjectIdResolver newForDeserialization(Object context) {
        // 19-Dec-2014, tatu: Important: must re-create without existing mapping; otherwise bindings leak
        //    (and worse, cause unnecessary memory retention)
        return new SimpleObjectIdResolver();
    }
}