Kuroko

Kuroko class generator.

How to use

Add @Kuroko annotation to your bean class.

Bean

package com.example.domain;

import io.disc99.kuroko.annotation.Kuroko;

@Kuroko
public class User {
    UserId id;
    Name name;
    Integer age;

    public User(UserId id, Name name, Integer age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }
}

@Kuroko
public class UserId {
    String val;

    public UserId(String val) {
        this.val = val;
    }
}

@Kuroko
public class Name {
    String first;
    String last;

    public Name(String first, String last) {
        this.first = first;
        this.last = last;
    }
}

Generated kuroko class

package com.example.domain;

import java.lang.reflect.Field;

/**
 * {@link com.example.domain.User } meta class.
 *
 * <p>
 * Don't modify this file!
 * This file is automatically generated for annotation processor.
 */
public class _User {
    private final User bean;

    public _User(User bean) {
        this.bean = bean;
    }

    public com.example.domain.UserId getId() {
        try {
            Field field = User.class.getDeclaredField("id");
            field.setAccessible(true);
            return (com.example.domain.UserId) field.get(bean);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public com.example.domain.UserId id() {
        try {
            Field field = User.class.getDeclaredField("id");
            field.setAccessible(true);
            return (com.example.domain.UserId) field.get(bean);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public com.example.domain._UserId get_id() {
        return new com.example.domain._UserId(getId());
    }

    public com.example.domain._UserId _id() {
        return new com.example.domain._UserId(getId());
    }

    public void setId(com.example.domain.UserId value) {
        try {
            Field field = User.class.getDeclaredField("id");
            field.setAccessible(true);
            field.set(bean, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public void id(com.example.domain.UserId value) {
        try {
            Field field = User.class.getDeclaredField("id");
            field.setAccessible(true);
            field.set(bean, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public com.example.domain.Name getName() {
        try {
            Field field = User.class.getDeclaredField("name");
            field.setAccessible(true);
            return (com.example.domain.Name) field.get(bean);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public com.example.domain.Name name() {
        try {
            Field field = User.class.getDeclaredField("name");
            field.setAccessible(true);
            return (com.example.domain.Name) field.get(bean);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }


    public com.example.domain._Name get_name() {
        return new com.example.domain._Name(getName());
    }

    public com.example.domain._Name _name() {
        return new com.example.domain._Name(getName());
    }

    public void setName(com.example.domain.Name value) {
        try {
            Field field = User.class.getDeclaredField("name");
            field.setAccessible(true);
            field.set(bean, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public void name(com.example.domain.Name value) {
        try {
            Field field = User.class.getDeclaredField("name");
            field.setAccessible(true);
            field.set(bean, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public java.lang.Integer getAge() {
        try {
            Field field = User.class.getDeclaredField("age");
            field.setAccessible(true);
            return (java.lang.Integer) field.get(bean);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public java.lang.Integer age() {
        try {
            Field field = User.class.getDeclaredField("age");
            field.setAccessible(true);
            return (java.lang.Integer) field.get(bean);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public void setAge(java.lang.Integer value) {
        try {
            Field field = User.class.getDeclaredField("age");
            field.setAccessible(true);
            field.set(bean, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public void age(java.lang.Integer value) {
        try {
            Field field = User.class.getDeclaredField("age");
            field.setAccessible(true);
            field.set(bean, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

// and generated _UserId, _Name classes

Use kuroko class

// The domain class does not have an accessor.
// domainUser.getAge() -> compile error
User domainUser = new User(
    new UserId("99"),
    new Name("Tom", "Simpson"),
    20
);

// Use kuroko class
_User user = new _User(domainUser);

// Kuroko class provides an accessor for accessing private fields in reflection.
user.getAge();  // 20
user.setAge(21);
user.getAge();  // 21
user.age(22);
user.age();     // 22

//If the acquisition target is Kuroko class, it can be obtained with "_" prefixed accessor
user.get_name().getFirst(); // Tom
user._name().last();        // Simpson

Installation

1. Add Maven repository: http://dl.bintray.com/disc99/maven
2. Add dependency: io.disc99.kuroko:annotation:${version}, io.disc99.kuroko:processor:${version}

Configuration example for Gradle + IntelliJ IDEA:

// Add dependencies
repositories {
    maven {
        url 'http://dl.bintray.com/disc99/maven'
    }
}
dependencies {
	compile 'io.disc99.kuroko:annotation:0.1.1'
	compileOnly 'io.disc99.kuroko:processor:0.1.1'
}

// IntelliJ IDEA settings(It is necessary to check `Enable annotation processing` from the IDE preference in addition)
apply plugin: 'idea'
idea {
	module {
		sourceDirs += file('build/classes/main/generated')
		generatedSourceDirs += file('build/classes/main/generated')
	}
}

Requirements

• JDK 8 +

License

(The MIT License)

Copyright (c) 2014 @disc99