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integration-tx-api/src/main/java/io/seata/integration/tx/api/util/ProxyUtil.java

@@ -37,6 +37,21 @@ public static <T> T createProxy(T target) {
         return createProxy(target, target.getClass().getName());
     }
 
+    /**
+     * The API for generating proxy for target. It can be used by spring aop, or
+     * provide user to generate proxy manually.
+     * <p>
+     * At TM side, It can be used for the target bean with @GlobalTransactional or @GlobalLock to generate proxy which start global transaction.
+     * At RM side, if you use TCC mode， It can be for target bean with @TwoPhaseBusinessAction to generate proxy which register branch source
+     *      and branch transaction. If you want to use this API to generate proxy manual like dubbo, you must make sure the target bean is the
+     *      business bean with @GlobalTransactional annotation. If you pass the ServiceBean(com.alibaba.dubbo.config.spring.ServiceBean) or
+     *      ReferenceBean(com.alibaba.dubbo.config.spring.ReferenceBean), it will don't work.
+     *
+     * @param target    the business bean
+     * @param beanName  the business bean name
+     * @return          the proxy bean
+     * @param <T>       the generics class
+     */
     public static <T> T createProxy(T target, String beanName) {
         try {
             synchronized (PROXYED_SET) {