/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */

package org.grails.spring.beans.factory;

import org.springframework.beans.factory.FactoryBean;

/**
 * Simple singleton instance implementation of Spring's FactoryBean interface
 * 
 * mainly useful in unit tests
 * 
 */
public class InstanceFactoryBean<T> implements FactoryBean<T> {
    T object;
    Class<?> objectType;
    
    public InstanceFactoryBean() {
        
    }
    
    public InstanceFactoryBean(T object, Class<?> objectType) {
        this.object = object;
        this.objectType = objectType;
    }

    public InstanceFactoryBean(T object) {
        this.object = object;
        this.objectType = object.getClass();
    }

    @Override
    public boolean isSingleton() {
        return true;
    }

    @Override
    public T getObject() {
        return object;
    }

    public void setObject(T object) {
        this.object = object;
    }

    @Override
    public Class<?> getObjectType() {
        return objectType != null ? objectType : object.getClass();
    }

    public void setObjectType(Class<?> objectType) {
        this.objectType = objectType;
    }
}
