home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Lift Framework example source code file (LongField.scala)

This example Lift Framework source code file (LongField.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Lift Framework tags/keywords

box, box, field, jint, jlong, jnothing, jvalue, jvalue, longtypedfield, longtypedfield, ownertype, ownertype, record, string

The Lift Framework LongField.scala source code

 * Copyright 2007-2011 WorldWide Conferencing, LLC
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package net.liftweb 
package record 
package field 

import scala.xml._
import net.liftweb.common._
import net.liftweb.http.{S}
import net.liftweb.json.JsonAST.{JInt, JNothing, JNull, JValue}
import net.liftweb.util._
import Helpers._
import S._

trait LongTypedField extends NumericTypedField[Long] {
  def setFromAny(in: Any): Box[Long] = setNumericFromAny(in, _.longValue)

  def setFromString(s: String): Box[Long] = setBox(asLong(s))

  def defaultValue = 0L

  def asJValue: JValue = valueBox.map(l => JInt(BigInt(l))) openOr (JNothing: JValue)
  def setFromJValue(jvalue: JValue): Box[Long] = jvalue match {
    case JNothing|JNull if optional_? => setBox(Empty)
    case JInt(i)                      => setBox(Full(i.longValue))
    case other                        => setBox(FieldHelpers.expectedA("JLong", other))

class LongField[OwnerType <: Record[OwnerType]](rec: OwnerType)
  extends Field[Long, OwnerType] with MandatoryTypedField[Long] with LongTypedField {

  def this(rec: OwnerType, value: Long) = {

  def owner = rec

class OptionalLongField[OwnerType <: Record[OwnerType]](rec: OwnerType)
  extends Field[Long, OwnerType] with OptionalTypedField[Long] with LongTypedField {

  def this(rec: OwnerType, value: Box[Long]) = {

  def owner = rec

Other Lift Framework examples (source code examples)

Here is a short list of links related to this Lift Framework LongField.scala source code file:

my book on functional programming


new blog posts


Copyright 1998-2019 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.