com.stratio.crossdata.driver.querybuilder.inserts.scala Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of crossdata-driver Show documentation

Stratio Crossdata Driver

The newest version!

/**
 * Copyright (C) 2015 Stratio (http://stratio.com)
 *
 * 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 com.stratio.crossdata.driver.querybuilder

import com.stratio.crossdata.driver.InitialSelectPhrases
import com.stratio.crossdata.driver.querybuilder.dslentities.{AsteriskExpression, XDQLStatement}

object InsertMode extends Enumeration {
  type InsertMode = Value
  val OVERWRITE = Value("OVERWRITE")
  val INTO = Value("INTO")
}

class Insert {
  def into(rel: Relation): ConfiguredInsert = new ConfiguredInsert(rel, InsertMode.INTO)
  def overwrite(rel: Relation): ConfiguredInsert = new ConfiguredInsert(rel, InsertMode.OVERWRITE)

  private[Insert] class ConfiguredInsert(val target: Relation, mode: InsertMode.InsertMode) extends InitialSelectPhrases
  {
    override protected def selectImp(projections: Seq[Expression]): ProjectedSelect =
      new ProjectedSelect(projections:_*)(qStr => s"INSERT $mode ${target.toXDQL} $qStr")
  }

  private[Insert] class RunnableInsert

}