kazuki43zoo ( Kazuki Shimizu )

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.terasoluna.gfw</groupId>
            <artifactId>terasoluna-gfw-common</artifactId>
            <version>5.6.0.RELEASE</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>versions-maven-plugin</artifactId>
                <version>2.8.1</version>
            </plugin>
        </plugins>
    </build>
</project>

created time in 12 days

issue closedmybatis/mybatis-3

Error with interface TypeHandler for enum with interface

Hi, I think I found an issue for a rather specific case. I'm not sure if this issue belongs to this repo, Spring integration, or MyBatis core. I put it here for now, because the demo is using TypeHandler's component scanning.

When trying to map an enum with an interface using the interface's TypeHandler Spring bean, there are cases which throws the following exception:

...
Caused by: org.apache.ibatis.type.TypeException: Unable to find a usable constructor for class com.example.demo.mybatis.TheInterfaceTypeHandler
	at org.apache.ibatis.type.TypeHandlerRegistry.getInstance(TypeHandlerRegistry.java:457) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.type.TypeHandlerRegistry.getJdbcHandlerMapForEnumInterfaces(TypeHandlerRegistry.java:286) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.type.TypeHandlerRegistry.getJdbcHandlerMap(TypeHandlerRegistry.java:262) ~[mybatis-3.5.5.jar:3.5.5]
	at org.apache.ibatis.type.TypeHandlerRegistry.getTypeHandler(TypeHandlerRegistry.java:237) ~[mybatis-3.5.5.jar:3.5.5]
	...
Caused by: java.lang.NoSuchMethodException: com.example.demo.mybatis.TheInterfaceTypeHandler.<init>()
	at java.lang.Class.getConstructor0(Class.java:3082) ~[na:1.8.0_265]
	at java.lang.Class.getConstructor(Class.java:1825) ~[na:1.8.0_265]

As I understand it, MyBatis is trying to instantiate a new TypeHandler instead of using the one registered as Spring bean, which it failed because the type handler class requires another Spring bean (therefore no no-arg constructor).

Here's the sample code for demonstrating the case: https://github.com/KniveX/bugreport-springboot-mybatis-200816

Java 8 (OpenJDK 1.8.0_265-8u265-b01-0ubuntu2~18.04-b01)
Spring Boot (2.3.3.RELEASE)
mybatis-spring-boot-starter (2.1.3)

Thank you, and I apologize if my english is not clear.

closed time in a month

KniveX

issue commentmybatis/mybatis-3

Error with interface TypeHandler for enum with interface

1 quick question:

It is same mean!

KniveX

comment created time in a month

issue commentmybatis/spring-boot-starter

Deadlock Retry

Hi @neodem ,

The mybatis-spring-boot(mybatis core and mybatis-spring) no provide a retry feature. If you need retry feature, probably you can use the spring-retry(@Retry) at mapper interface (interface that annotated @Mapper).

neodem