getter/setter以外のメソッドをJavaBeansのプロパティアクセッサに使う例

JavaBeansSampleApp.java

package aoetk.sample;

import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;

/**
 * Beanの利用例.
 */
public class JavaBeansSampleApp {

    public static void main(String[] args) {
        try {
            Test test = new Test();
            BeanInfo testBeanInfo = Introspector.getBeanInfo(test.getClass());
            PropertyDescriptor[] propertyDescriptors = testBeanInfo.getPropertyDescriptors();
            for (PropertyDescriptor pd : propertyDescriptors) {
                if ("わーい".equals(pd.getName())) {
                    System.out.println("わーいプロパティのsetter: " + pd.getWriteMethod());
                    System.out.println("わーいプロパティのgetter: " + pd.getReadMethod());
                    pd.getWriteMethod().invoke(test, "なにこれー？");
                }
            }
            System.out.println(test);
        } catch (IntrospectionException | InvocationTargetException | IllegalAccessException e) {
            e.printStackTrace();
        }
    }

}

Test.java

package aoetk.sample;

/**
 * getter/setterを使わないJavaBeansの例.
 */
public class Test {

    private String わーい;

    public String すごーい() {
        return わーい;
    }

    public void たーのしー(String myProperty) {
        this.わーい = myProperty;
    }

    @Override
    public String toString() {
        return "Test{" +
                "わーい='" + わーい + '\'' +
                '}';
    }

}

TestBeanInfo.java

package aoetk.sample;

import java.beans.IntrospectionException;
import java.beans.PropertyDescriptor;
import java.beans.SimpleBeanInfo;

/**
 * {@link Test}のJavaBeans情報.
 */
public class TestBeanInfo extends SimpleBeanInfo {

    @Override
    public PropertyDescriptor[] getPropertyDescriptors() {
        try {
            return new PropertyDescriptor[]{
                    new PropertyDescriptor("わーい", Test.class, "すごーい", "たーのしー")
            };
        } catch (IntrospectionException e) {
            return null;
        }
    }

}