scalikejdbc.NamedDB.scala Maven / Gradle / Ivy
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/*
* Copyright 2012 Kazuhiro Sera
*
* 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 scalikejdbc
import java.sql.Connection
import scalikejdbc.metadata.Table
/**
* Named Basic DB Accessor
*
* It's easier to use named ConnectionPool with this class.
*
* {{{
* ConnectionPool.add('named, "jdbc:...", "user", "password")
* val users = NamedDB('named) readOnly { session =>
* session.list("select * from user")
* }
* }}}
*/
case class NamedDB(name: Any)(implicit context: ConnectionPoolContext = NoConnectionPoolContext) {
private[this] def connectionPool(): ConnectionPool = opt(context match {
case NoConnectionPoolContext => ConnectionPool(name)
case _: MultipleConnectionPoolContext => context.get(name)
case _ => throw new IllegalStateException(ErrorMessage.UNKNOWN_CONNECTION_POOL_CONTEXT)
}) getOrElse {
throw new IllegalStateException(ErrorMessage.CONNECTION_POOL_IS_NOT_YET_INITIALIZED)
}
private lazy val db: DB = DB(connectionPool().borrow())
def isTxNotActive = db.isTxNotActive
def isTxNotYetStarted = db.isTxNotYetStarted
def isTxAlreadyStarted = db.isTxAlreadyStarted
def newTx: Tx = db.newTx
def currentTx: Tx = db.currentTx
def tx: Tx = db.tx
def close() = db.close()
def begin() = db.begin()
def beginIfNotYet(): Unit = db.beginIfNotYet()
def commit(): Unit = db.commit()
def rollback(): Unit = db.rollback()
def rollbackIfActive(): Unit = db.rollbackIfActive()
def readOnlySession(): DBSession = db.readOnlySession()
def readOnly[A](execution: DBSession => A): A = db.readOnly(execution)
def readOnlyWithConnection[A](execution: Connection => A): A = db.readOnlyWithConnection(execution)
def autoCommitSession(): DBSession = db.autoCommitSession()
def autoCommit[A](execution: DBSession => A): A = db.autoCommit(execution)
def autoCommitWithConnection[A](execution: Connection => A): A = db.autoCommitWithConnection(execution)
def withinTxSession(tx: Tx = currentTx): DBSession = db.withinTxSession(tx)
def withinTx[A](execution: DBSession => A): A = db.withinTx(execution)
def withinTxWithConnection[A](execution: Connection => A): A = db.withinTxWithConnection(execution)
def localTx[A](execution: DBSession => A): A = db.localTx(execution)
def localTxWithConnection[A](execution: Connection => A): A = db.localTxWithConnection(execution)
def getTable(table: String): Option[Table] = db.getTable(table)
def getTableNames(tableNamePattern: String, tableTypes: Array[String] = Array("TABLE", "VIEW")): List[String] = {
db.getTableNames(tableNamePattern)
}
def showTables(tableNamePattern: String = "%", tableTypes: Array[String] = Array("TABLE", "VIEW")): String = {
db.showTables(tableNamePattern, tableTypes)
}
def describe(table: String) = db.describe(table)
}