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a java microservice project

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/**
 * Copyright (c) 2022 TruthBean(Rogar·Q)
 * Debbie is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 * http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
package com.truthbean.debbie.bean;

import com.truthbean.debbie.core.ApplicationContext;

import java.lang.ref.WeakReference;

/**
 * @author TruthBean/Rogar·Q
 * @since 0.5.0
 * Created on 2021-02-24 22:57
 */
public class WeakReferenceBeanFactory implements BeanFactory {

    private WeakReference bean;
    private final Class beanClass;

    public WeakReferenceBeanFactory(Class beanClass) {
        this.beanClass = beanClass;
    }

    @Override
    public void destruct(ApplicationContext applicationContext) {
        bean.clear();
    }

    @Override
    public T factoryNamedBean(String name, ApplicationContext applicationContext) {
        this.bean = new WeakReference<>(applicationContext.factory(this.beanClass));
        return bean.get();
    }

    @Override
    public boolean isCreated() {
        return false;
    }

    @Override
    public T getCreatedBean() {
        if (bean != null) {
            return bean.get();
        }
        return null;
    }

    @Override
    public Class getBeanClass() {
        return beanClass;
    }

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