[debug] 使用二级缓存的方式解决了代理类之间的循环依赖问题

vfdxvffd · Apr 15, 2021 · 728c741 · 728c741
1 parent e29f7be
commit 728c741
Show file tree

Hide file tree

Showing 2 changed files with 328 additions and 544 deletions.
diff --git a/src/main/java/com/vfd/summer/applicationContext/ApplicationContext.java b/src/main/java/com/vfd/summer/applicationContext/ApplicationContext.java
@@ -1,9 +1,14 @@
 package com.vfd.summer.applicationContext;
 
-import com.vfd.summer.ioc.exception.DataConversionException;
-import com.vfd.summer.ioc.exception.DuplicateBeanClassException;
-import com.vfd.summer.ioc.exception.DuplicateBeanNameException;
-import com.vfd.summer.ioc.exception.NoSuchBeanException;
+
+
+import com.vfd.summer.exception.DataConversionException;
+import com.vfd.summer.exception.DuplicateBeanClassException;
+import com.vfd.summer.exception.DuplicateBeanNameException;
+import com.vfd.summer.exception.NoSuchBeanException;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.Map;
 
 /**
  * @PackageName: com.vfd.summer.ioc.applicationContext
@@ -14,7 +19,70 @@
  */
 public interface ApplicationContext {
 
-    Object getBean(String beanName) throws NoSuchBeanException, DataConversionException, DuplicateBeanClassException, DuplicateBeanNameException, NoSuchMethodException, IllegalAccessException, ClassNotFoundException;
+    /**
+     * 根据bean的name获取对象
+     * @param beanName
+     * @return
+     */
+    Object getBean(String beanName) throws NoSuchBeanException, DataConversionException, DuplicateBeanClassException, DuplicateBeanNameException, NoSuchMethodException, IllegalAccessException, ClassNotFoundException, InvocationTargetException, InstantiationException;
+
+    /**
+     * 根据bean的类型获取对象
+     * @param beanType
+     * @param <T>
+     * @return
+     */
+    <T> T getBean(Class<T> beanType) throws NoSuchBeanException, DataConversionException, DuplicateBeanClassException, DuplicateBeanNameException, NoSuchMethodException, IllegalAccessException, ClassNotFoundException, InvocationTargetException, InstantiationException;
+
+    /**
+     * 同时根据bean的类型和name获取对象，若一个接口多个实现类，则可以通过接口类型和name去获取
+     * @param name
+     * @param beanType
+     * @param <T>
+     * @return
+     */
+    <T> T getBean(String name, Class<T> beanType) throws NoSuchBeanException, NoSuchMethodException, ClassNotFoundException, IllegalAccessException, InstantiationException, DuplicateBeanNameException, DuplicateBeanClassException, InvocationTargetException, DataConversionException, NoSuchBeanException;
+
+    /**
+     * 根据name获取相应的类型
+     * @param name
+     * @return
+     */
+    Class<?> getType(String name) throws NoSuchBeanException;
+
+    /**
+     * 根据类型获取该类型对应的所有bean,比如一个接口和它的所有实现类，用map返回<beanName, Object>
+     * @param beanType
+     * @param <T>
+     * @return
+     */
+    <T> Map<String, T> getBeansOfType(Class<T> beanType) throws NoSuchBeanException, InstantiationException, InvocationTargetException, NoSuchMethodException, IllegalAccessException, DuplicateBeanNameException, DataConversionException, DuplicateBeanClassException, ClassNotFoundException;
+
+    /**
+     * 获取BeanDefinition的数量，即ioc中管理的所有类的数量
+     * @return
+     */
+    int getBeanDefinitionCount();
+
+    /**
+     * 获取所有BeanDefinition的name属性
+     * @return
+     */
+    String[] getBeanDefinitionNames();
+
+    /**
+     * 判断是否存在name为传入参数的bean
+     * @param name
+     * @return
+     */
+    boolean containsBean(String name);
 
-    <T> T getBean(Class<T> beanType) throws NoSuchBeanException, DataConversionException, DuplicateBeanClassException, DuplicateBeanNameException, NoSuchMethodException, IllegalAccessException, ClassNotFoundException;
+    /**
+     * 判断是否存在name为传入参数的BeanDefinition
+     * 与上一个方法不同的是上一个判断的是实际的对象，而这个方法判断的是BeanDefinition
+     * 若某个类为原型模式（非单例），则它的对象不会存储在ioc容器中，但BeanDefinition是一直存在的
+     * @param beanName
+     * @return
+     */
+    boolean containsBeanDefinition(String beanName);
 }