com.github.mauricio.async.db.mysql.codec.PreparedStatementHolder.scala Maven / Gradle / Ivy

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/*
 * Copyright 2013 Maurício Linhares
 *
 * Maurício Linhares licenses this file to you 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.github.mauricio.async.db.mysql.codec

import com.github.mauricio.async.db.mysql.message.server.{
  ColumnDefinitionMessage,
  PreparedStatementPrepareResponse
}
import scala.collection.mutable.ArrayBuffer

class PreparedStatementHolder(
  val statement: String,
  val message: PreparedStatementPrepareResponse
) {

  val columns    = new ArrayBuffer[ColumnDefinitionMessage]
  val parameters = new ArrayBuffer[ColumnDefinitionMessage]

  def statementId: Array[Byte] = message.statementId

  def needsParameters: Boolean = message.paramsCount != this.parameters.length

  def needsColumns: Boolean = message.columnsCount != this.columns.length

  def needsAny: Boolean = this.needsParameters || this.needsColumns

  def add(column: ColumnDefinitionMessage): Unit = {
    if (this.needsParameters) {
      this.parameters += column
    } else {
      if (this.needsColumns) {
        this.columns += column
      }
    }
  }

  override def toString: String = s"PreparedStatementHolder($statement)"

}