RestEntity.scala

package com.scrumplus.core.framework.crud

import java.beans.Introspector
import java.lang.reflect.Field
import com.scrumplus.core.framework.annotation.{Private, WriteOnly, ReadOnly}
import scala.language.dynamics
import scala.collection.mutable.ListBuffer

/**
 * @project simple-heroku-webapp
 * @author sergiovilar 
 * @date: 12/28/14 
 */
class RestEntity extends Dynamic{

  /*def selectDynamic(methodName: String) = {
    println("I'm calling " + methodName)
    functionsMap(methodName).apply()
  }*/

  def applyDynamic(name: String)(args: Any*): Any = {

    var getter = false
    var setter = false
    var prefix = ""

    if(name.indexOf("set") == 0){
      prefix = "set"
      setter = true
    }else if(name.indexOf("get") == 0){
      getter = true
      prefix = "get"
    }else if(name.indexOf("is") == 0){
      getter = true
      prefix = "is"
    }

    var readOnly = false
    var writeOnly = false

    val fieldname = Introspector.decapitalize(name.replace(prefix, ""))
    val clz = this.getClass
    val field: Field = clz.getDeclaredField(fieldname);
    field.setAccessible(true)

    if(field.getAnnotation(classOf[ReadOnly]) != null)
      readOnly = true

    if(field.getAnnotation(classOf[WriteOnly]) != null)
      writeOnly = true

    if(field.getAnnotation(classOf[Private]) != null){
      writeOnly = true
      readOnly = true
    }

    if(getter && !writeOnly){
      return field.get(this)
    }

    if(setter && !readOnly){
      field.set(this, args.last)
    }

  }

}

User.scala

package com.scrumplus.entity

import java.util.Date
import javax.persistence._
import javax.xml.bind.annotation.XmlRootElement

import com.scrumplus.core.framework.annotation.{WriteOnly, ReadOnly}
import com.scrumplus.core.framework.crud.RestEntity

/**
 * @project simple-heroku-webapp
 * @author sergiovilar 
 * @date: 12/21/14 
 */
@Entity
@Table(name="user")
class User extends RestEntity(){

  @Id
  @Column
  @GeneratedValue
  var id: Long = 0

  // ----- Dados pessoais
  @Column
  var name = ""

  @Column
  var lastName = ""

  @Column(unique=true)
  var email = ""

  @Column
  var username = ""

  @Column
  @WriteOnly
  var password = ""

  // ----- Status
  @Column
  var active = true

  @Column
  var lastLogin = new Date()

  @Column
  @ReadOnly
  var created = new Date()
  
}