Package dev.morphia.query

Interface QueryFactory

All Known Implementing Classes:

AbstractQueryFactory, DefaultQueryFactory

public interface QueryFactory

A factory for Queryies.

Method Summary

Modifier and Type	Method	Description
<T> Query<T>	createQuery(Datastore datastore)	Creates an unvalidated Query typically for use in aggregation pipelines.
<T> Query<T>	createQuery(Datastore datastore, com.mongodb.DBCollection collection, java.lang.Class<T> type)	Creates and returns a Query for the given arguments.
<T> Query<T>	createQuery(Datastore datastore, com.mongodb.DBCollection collection, java.lang.Class<T> type, com.mongodb.DBObject query)	Creates and returns a Query for the given arguments.

Method Detail

createQuery

<T> Query<T> createQuery(Datastore datastore,
                         com.mongodb.DBCollection collection,
                         java.lang.Class<T> type)

Creates and returns a Query for the given arguments. Default implementations of this method will simply delegate to createQuery(Datastore, DBCollection, Class, DBObject) with the last argument being null.

Type Parameters:

T - the type of the result

Parameters:

datastore - the Datastore to use

collection - the collection to query

type - the type of the result

Returns:

the query

See Also:

createQuery(Datastore, DBCollection, Class, DBObject)

createQuery

<T> Query<T> createQuery(Datastore datastore,
                         com.mongodb.DBCollection collection,
                         java.lang.Class<T> type,
                         com.mongodb.DBObject query)

Creates and returns a Query for the given arguments. The last argument is optional and may be null.

Type Parameters:

T - the type of the result

Parameters:

datastore - the Datastore to use

collection - the collection to query

type - the type of the result

query - the DBObject containing the query structure

Returns:

the query

createQuery

<T> Query<T> createQuery(Datastore datastore)

Creates an unvalidated Query typically for use in aggregation pipelines.

Type Parameters:

T - the type of the result

Parameters:

datastore - the Datastore to use

Returns:

the query