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Lift Framework example source code file (BinaryField.scala)

This example Lift Framework source code file (BinaryField.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

array, array, binarytypedfield, binarytypedfield, box, box, field, jvalue, ownertype, ownertype, record, str, string, typedfield

The Lift Framework BinaryField.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,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * 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.http.js._
import net.liftweb.json.JsonAST.JValue
import net.liftweb.util._
import Helpers._
import S._
import JE._


trait BinaryTypedField extends TypedField[Array[Byte]] {
  def setFromAny(in: Any): Box[Array[Byte]] = genericSetFromAny(in)

  def setFromString(s: String): Box[Array[Byte]] = s match {
    case "" if optional_? => setBox(Empty)
    case _                => setBox(tryo(s.getBytes("UTF-8")))
  }

  def toForm: Box[NodeSeq] = Empty

  def asJs = valueBox.map(v => Str(hexEncode(v))) openOr JsNull

  def asJValue = asJString(base64Encode _)
  def setFromJValue(jvalue: JValue) = setFromJString(jvalue)(s => tryo(base64Decode(s)))
}
  
class BinaryField[OwnerType <: Record[OwnerType]](rec: OwnerType)
  extends Field[Array[Byte], OwnerType] with MandatoryTypedField[Array[Byte]] with BinaryTypedField {

  def owner = rec

  def this(rec: OwnerType, value: Array[Byte]) = {
    this(rec)
    set(value)
  }

  def defaultValue = Array(0)
}

class OptionalBinaryField[OwnerType <: Record[OwnerType]](rec: OwnerType)
  extends Field[Array[Byte], OwnerType] with OptionalTypedField[Array[Byte]] with BinaryTypedField {

  def owner = rec

  def this(rec: OwnerType, value: Box[Array[Byte]]) = {
    this(rec)
    setBox(value)
  }
}

Other Lift Framework examples (source code examples)

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