Displaying information using Both APIsī1=CLASS. Displaying information using Bean Info APIįield n.0=class Type= Value=class .Bean1$Proxy$_$$_WeldClientProxyįield n.1=field1 Type= Value=aįield n.2=handler Type=.proxy.ProxyMethodHandler n.3=metadata Type=.proxy.ProxyMethodHandler n.4=targetClass Type= Value=class .Bean1įield n.5=targetInstance Type=.Bean1 Value=Bean1(field1=a)įield n.0=b1 Type=.Bean1$Proxy$_$$_WeldClientProxy Value=Bean1(field1=a)įield n.1=class Type= Value=class .Bean2įield n.2=field2 Type= Value=33ĥ. Displaying information using Reflection APIī1=CLASS.Bean1$Proxy$_$$_WeldClientProxyįield n.0=BEAN_ID_FIELD Type=interface .spi.BeanIdentifier Value=WELD%ManagedBean%STATIC_INSTANCE|/JSFv02_/WEB-INF/classes|.Bean1|null|falseįield n.1=weld$$$53 Type=class Value=public abstract void ._mixin_$$_preDestroy()įield n.2=weld$$$52 Type=class Value=public abstract void ._mixin_$$_postConstruct()įield n.3=weld$$$55 Type=class Value=public abstract .()įield n.4=weld$$$54 Type=class Value=public abstract .()įield n.5=methodHandler Type=class .proxy.ProxyMethodHandler n.6=constructed Type=boolean Value=trueī1=CLASS.Bean2įield n.0=serialVersionUID Type=long Value=1įield n.1=b1 Type=class .Bean1 Value=Bean1(field1=a)įield n.2=field2 Type=class Value=33Ĥ. forName() method in java :forName() method Returns the Class object associated with the class or interface with the given string name, using the given class. The is a class that provides many methods that we can use to get metadata of the class and to. It is a process of examining or modifying the run time behavior of a class at run time. How the field information is extracted taking into account if the class is proxied or not.īean2=Bean2(b1=Bean1(field1=a), field2=33)ī1=.Bean1$Proxy$_$$_WeldClientProxyīean2=.Bean2ģ. Reflection in Java is an API (Application Programming Interface) that is used at runtime to analyze or change classes, methods, and interfaces. Notice how field information is retrieved in Reflection and Bean APIs.ģ. In addition, an attempt will be made to make non- publicmethods accessible, thus allowing one to invoke protected, private, and package-private setter methods. When we make some generics methods, we will need some common behavior which will work with any kind of class. Reflection API is used to examine the behavior of classes, interfaces, methods at runtime. This method traverses the class hierarchy in search of the desired method. We can invoke setters and getters of a POJO class by using its variable name by using Reflection API of java. In this post we'll see example of both of these ways to invoke getters and setters of the class. Scanning methods of the class and look for set and get methods. When a class is a proxy, its class name includes the string " Proxy$".Ģ. Invoke the setter method with the given name on the supplied target object with the supplied value. this is for invoking a static method, if you want to invoke a non static method, you need to replace the first argument of m.invoke() from null to the object the underlying method is invoked from. In this post we’ll use that knowledge to invoke getters and setters of the class using Java reflection API. Import java.io.Serializable import import import import lombok.Getter import lombok.Setter import lombok.ToString public class Bean2 implements Serializable ġ.
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