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How to implement Generics DAO with Spring JDBC template


How to implement Generics DAO with Spring JDBC template

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How to implement Generics DAO with Spring JDBC template
Tag : spring , By : kema
Date : November 29 2020, 01:01 AM


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How does .Net implement generics based on C++ template knowledge?


Tag : .net , By : Adam May
Date : March 29 2020, 07:55 AM

Is there any template to generate java code snippet for spring jdbc template


Tag : java , By : nemof
Date : March 29 2020, 07:55 AM
hope this fix your issue Please take a look at Spring roo. You can try Incremental Database Reverse Engineering.
http://docs.spring.io/spring-roo/reference/html/intro.html

Spring JDBC Template java.lang.ClassCastException in spring 4.0.0


Tag : java , By : Stephen Judge
Date : March 29 2020, 07:55 AM
With these it helps A Spring bean is not usually proxied unless some special external behavior needs to be applied. For example, AOP advice, transaction management, bean scope, etc.
Your context seems to be incomplete. If you've declared some AOP joinpoint that matches a JdbcTemplate method, then that bean will be proxied. You can specify proxy settings, for example if Spring should proxy-target-class instead of the interface. If you have the CGLIB library on your classpath, you shouldn't have any problem by setting
<aop:config proxy-target-class="true"> ...
public static void main(String[] args) throws Exception {
    JdbcTemplate template = new JdbcTemplate();
    Object proxy = Proxy.newProxyInstance(template.getClass().getClassLoader(), template.getClass().getInterfaces(), new ProxyJdbcTemplateHandler(template));
    System.out.println(proxy.getClass());
    System.out.println(proxy.getClass().getSuperclass());
    System.out.println(Arrays.toString(proxy.getClass().getInterfaces()));
}

public static class ProxyJdbcTemplateHandler implements InvocationHandler {
    private JdbcTemplate target;

    @Override
    public Object invoke(Object proxy, Method method, Object[] args)
            throws Throwable {
        // do something with target
        return null;
    }

    public ProxyJdbcTemplateHandler(JdbcTemplate target) {
        this.target = target;
    }
}
class $Proxy0
class java.lang.reflect.Proxy
[interface org.springframework.jdbc.core.JdbcOperations]

What are template classes in Spring Java? Why are they called templates? For example jdbc-template, jms-template etc


Tag : java , By : Ben Humphrys
Date : March 29 2020, 07:55 AM
This might help you They are called template as use the Template method pattern.
Basically the idea is define the operation needed to do something in an abstract class or super class then implement a class that use the operation previous defined.

ORA-00942: table or view does not exist with Spring JDBC Template in Spring Boot


Tag : oracle , By : Moe Skeeto
Date : March 29 2020, 07:55 AM
may help you . The culprit was the following incorrect and unnecessary definition in my Repository:
@Autowired
public void setDataSource(DataSource dataSource) {
        this.template = new JdbcTemplate(dataSource);
    }
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