Class MongoDBQueryAction

java.lang.Object

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

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

All Implemented Interfaces:

BaseQueryInterface, QueryInterface

public class MongoDBQueryAction
extends AbstractMongoDBAction
implements QueryInterface

Execute a Query action against a MongoDB backend.

Note that this a collection.aggregate() even if it could maybe do a collection.find(), to keep the code paths simpler in here, and to support FieldFunctions (which require aggregate). The performance difference is hopefully not so bad, but this could potentially be a future optimization if it was found to be worthwhile.

Field Summary

Fields inherited from class com.kingsrook.qqq.backend.module.mongodb.actions.AbstractMongoDBAction

queryStat

Constructor Summary

Constructors

Constructor	Description
MongoDBQueryAction()

Method Summary

Modifier and Type	Method	Description
QueryOutput	execute(QueryInput queryInput)
QueryOutput	executeForDml(QueryInput queryInput)	Reject native identities that cannot safely select a later MongoDB write.
List<Serializable>	findAssociatedPrimaryKeys(AssociatedRecordDiscovery.Input input)	Discover relationship membership without changing the caller's read visibility.
List<QRecord>	lookupUniqueKey(UniqueKeyLookup.Input input)	Display locks and unrelated computed fields cannot hide stored key conflicts.
List<QRecord>	readAssociationValues(AssociatedRecordDiscovery.StoredValuesInput input)	Stored relationship values are independent of display locks and computations.

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

buildAddFieldsDocument, documentToRecord, getBackendTableName, getFieldBackendName, getFieldReference, getPageSize, getQueryStat, logQuery, makeFilterPipeline, makeFilterPipeline, makeSearchQueryDocument, openClient, recordToDocument, requireFieldFunctionAdapter, setQueryInQueryStat, setQueryStat

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.kingsrook.qqq.backend.core.actions.interfaces.BaseQueryInterface

cancelAction, getQueryStat, setQueryStat, setQueryStatFirstResultTime

Constructor Details

MongoDBQueryAction

public MongoDBQueryAction()

Method Details

lookupUniqueKey

public List<QRecord> lookupUniqueKey(UniqueKeyLookup.Input input)
                              throws QException

Display locks and unrelated computed fields cannot hide stored key conflicts.

Specified by:

lookupUniqueKey in interface QueryInterface

Throws:

QException

readAssociationValues

public List<QRecord> readAssociationValues(AssociatedRecordDiscovery.StoredValuesInput input)
                                    throws QException

Stored relationship values are independent of display locks and computations.

Specified by:

readAssociationValues in interface QueryInterface

Throws:

QException

findAssociatedPrimaryKeys

public List<Serializable> findAssociatedPrimaryKeys(AssociatedRecordDiscovery.Input input)
                                             throws QException

Discover relationship membership without changing the caller's read visibility.

Specified by:

findAssociatedPrimaryKeys in interface QueryInterface

Throws:

QException

execute

public QueryOutput execute(QueryInput queryInput)
                    throws QException

Specified by:

execute in interface QueryInterface

Throws:

QException

executeForDml

public QueryOutput executeForDml(QueryInput queryInput)
                          throws QException

Reject native identities that cannot safely select a later MongoDB write.

Specified by:

executeForDml in interface QueryInterface

Throws:

QException