com.couchbase.client.scala.transactions.error.TransactionCommitAmbiguousException.scala Maven / Gradle / Ivy
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The official Couchbase Scala SDK
/*
* Copyright 2023 Couchbase, Inc.
*
* 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.couchbase.client.scala.transactions.error;
import com.couchbase.client.core.error.transaction.internal.CoreTransactionCommitAmbiguousException;
/**
* The transaction expired at the point of trying to commit it. It is ambiguous whether the transaction has committed
* or not.
*
* This error is result of inevitable and unavoidable edge cases when working with unreliable networks. For example,
* consider an ordinary mutation being made over the network to any database. The mutation could succeed on the
* database-side, and then just before the result is returned to the client, the network connection drops. The client
* cannot receive the success result and will timeout - it is ambiguous to it whether the mutation succeeded or not.
*
* The transactions layer will work to resolve the ambiguity up until the transaction expires, but if unable to resolve
* it in that time, it is forced to raise this error. The transaction may or may not have been successful, and
* error-handling of this is highly application-dependent.
*
* The asynchronous cleanup process will try to complete the transaction: roll it back if it didn't commit, roll it
* forwards if it did.
*/
class TransactionCommitAmbiguousException private[scala] (
private val internal: CoreTransactionCommitAmbiguousException
) extends TransactionFailedException(internal)