com.jetbrains.teamsys.dnq.database.TransientEntityUtil.kt Maven / Gradle / Ivy
/**
* Copyright 2006 - 2019 JetBrains s.r.o.
*
* 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.jetbrains.teamsys.dnq.database
import jetbrains.exodus.database.TransientEntity
import jetbrains.exodus.database.TransientEntityStore
import jetbrains.exodus.entitystore.Entity
import jetbrains.exodus.entitystore.PersistentEntityStore
import jetbrains.exodus.entitystore.PersistentStoreTransaction
/**
* Attach entity to current transient session if possible.
*/
fun TransientEntity.reattach(): TransientEntity {
val s = store.threadSessionOrThrow
return s.newLocalCopy(this)
}
fun Entity.reattachTransient(): TransientEntity {
return (this as TransientEntity).reattach()
}
val TransientEntityStore.threadSessionOrThrow
get() = threadSession
?: throw IllegalStateException("There is no transient transaction in current thread")
val PersistentEntityStore.currentTransactionOrThrow
get() = currentTransaction as PersistentStoreTransaction?
?: throw IllegalStateException("There is no persistent transaction in current thread")
val TransientEntity.persistentClassInstance: BasePersistentClassImpl?
get() = (store as? TransientEntityStoreImpl)?.getCachedPersistentClassInstance(type)