Class MongoDBConsistentReadTransaction

java.lang.Object

com.kingsrook.qqq.backend.core.actions.QBackendTransaction

com.kingsrook.qqq.backend.module.mongodb.actions.MongoDBTransaction

com.kingsrook.qqq.backend.module.mongodb.actions.MongoDBConsistentReadTransaction

All Implemented Interfaces:

AutoCloseable

public class MongoDBConsistentReadTransaction
extends MongoDBTransaction

MongoDB transaction opened by MongoDBBackendModule.openConsistentReadTransaction - wrapping a session that has snapshot read concern (if the server supports it). Never starts a mongo transaction (snapshot sessions can't have one), and so is for reads only.

Constructor Summary

Constructors

Constructor	Description
MongoDBConsistentReadTransaction(MongoDBBackendMetaData backend, com.mongodb.client.MongoClient mongoClient, com.mongodb.client.ClientSession clientSession, ConsistencyGuarantee consistencyGuarantee)	Constructor

Method Summary

Modifier and Type	Method	Description
ConsistencyGuarantee	getConsistencyGuarantee()	What a transaction from openConsistentReadTransaction guarantees.

Methods inherited from class com.kingsrook.qqq.backend.module.mongodb.actions.MongoDBTransaction

close, commit, getClientSession, getMongoClient, rollback

Methods inherited from class com.kingsrook.qqq.backend.core.actions.QBackendTransaction

addAfterCommitCallback, discardAfterCommitCallbacks, getExportedSnapshotId, openConsistentReadFor, openFor, runAfterCommitCallbacks

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MongoDBConsistentReadTransaction

public MongoDBConsistentReadTransaction(MongoDBBackendMetaData backend,
 com.mongodb.client.MongoClient mongoClient,
 com.mongodb.client.ClientSession clientSession,
 ConsistencyGuarantee consistencyGuarantee)

Constructor

Method Details

getConsistencyGuarantee

public ConsistencyGuarantee getConsistencyGuarantee()

Description copied from class: QBackendTransaction

What a transaction from openConsistentReadTransaction guarantees. Callers should record this, rather than assume ONE_INSTANT.

Overrides:

getConsistencyGuarantee in class QBackendTransaction