org.springframework.data.mongodb.repository.support

Class QuerydslAbstractMongodbQuery<K,Q extends QuerydslAbstractMongodbQuery<K,Q>>

java.lang.Object

org.springframework.data.mongodb.repository.support.QuerydslAbstractMongodbQuery<K,Q>

Type Parameters:

Q - concrete subtype

All Implemented Interfaces:

com.querydsl.core.FilteredClause<Q>, com.querydsl.core.SimpleQuery<Q>

Direct Known Subclasses:

SpringDataMongodbQuery

public abstract class QuerydslAbstractMongodbQuery<K,Q extends QuerydslAbstractMongodbQuery<K,Q>>
extends Object
implements com.querydsl.core.SimpleQuery<Q>

QuerydslAbstractMongodbQuery provides a base class for general Querydsl query implementation.

Original implementation source AbstractMongodbQuery by The Querydsl Team (http://www.querydsl.com/team) licensed under the Apache License, Version 2.0.

Modified for usage with MongodbDocumentSerializer.

Since:

2.1

Author:

laimw, Mark Paluch, Christoph Strobl

Method Summary

Modifier and Type	Method and Description
protected org.bson.Document	createProjection(com.querydsl.core.types.Expression<?> projectionExpression) Compute the actual projection Document from a given projectionExpression by serializing the contained expressions individually.
protected org.bson.Document	createQuery(com.querydsl.core.types.Predicate predicate) Compute the filer Document from the given Predicate.
protected org.bson.Document	createSort(List<com.querydsl.core.types.OrderSpecifier<?>> orderSpecifiers) Compute the sort Document from the given list of order specifiers.
Q	distinct()
Q	limit(long limit)
Q	offset(long offset)
Q	orderBy(com.querydsl.core.types.OrderSpecifier<?>... o)
Q	restrict(com.querydsl.core.QueryModifiers modifiers)
<T> Q	set(com.querydsl.core.types.ParamExpression<T> param, T value)
String	toJson() Obtain the Mongo Shell json query representation.
String	toJson(org.bson.json.JsonWriterSettings settings) Obtain the json query representation applying given settings.
String	toString() Returns the Mongo Shell representation of the query.
Q	where(com.querydsl.core.types.Predicate... e)

Methods inherited from class java.lang.Object

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

Method Detail

distinct

public Q distinct()

Specified by:

distinct in interface com.querydsl.core.SimpleQuery<Q extends QuerydslAbstractMongodbQuery<K,Q>>

where

public Q where(com.querydsl.core.types.Predicate... e)

Specified by:

where in interface com.querydsl.core.FilteredClause<Q extends QuerydslAbstractMongodbQuery<K,Q>>

limit

public Q limit(long limit)

Specified by:

limit in interface com.querydsl.core.SimpleQuery<Q extends QuerydslAbstractMongodbQuery<K,Q>>

offset

public Q offset(long offset)

Specified by:

offset in interface com.querydsl.core.SimpleQuery<Q extends QuerydslAbstractMongodbQuery<K,Q>>

restrict

public Q restrict(com.querydsl.core.QueryModifiers modifiers)

Specified by:

restrict in interface com.querydsl.core.SimpleQuery<Q extends QuerydslAbstractMongodbQuery<K,Q>>

orderBy

public Q orderBy(com.querydsl.core.types.OrderSpecifier<?>... o)

Specified by:

orderBy in interface com.querydsl.core.SimpleQuery<Q extends QuerydslAbstractMongodbQuery<K,Q>>

set

public <T> Q set(com.querydsl.core.types.ParamExpression<T> param,
                 T value)

Specified by:

set in interface com.querydsl.core.SimpleQuery<Q extends QuerydslAbstractMongodbQuery<K,Q>>

createProjection

protected org.bson.Document createProjection(@Nullable
                                             com.querydsl.core.types.Expression<?> projectionExpression)

Compute the actual projection Document from a given projectionExpression by serializing the contained expressions individually.

Parameters:

projectionExpression - the computed projection Document.

Returns:

never null. An empty Document by default.

See Also:

MongodbDocumentSerializer.handle(Expression)

createQuery

protected org.bson.Document createQuery(@Nullable
                                        com.querydsl.core.types.Predicate predicate)

Compute the filer Document from the given Predicate.

Parameters:

predicate - can be null.

Returns:

an empty Document if predicate is null.

See Also:

MongodbDocumentSerializer.toQuery(Predicate)

createSort

protected org.bson.Document createSort(List<com.querydsl.core.types.OrderSpecifier<?>> orderSpecifiers)

Compute the sort Document from the given list of order specifiers.

Parameters:

orderSpecifiers - can be null.

Returns:

an empty Document if predicate is null.

See Also:

MongodbDocumentSerializer.toSort(List)

toString

public String toString()

Returns the Mongo Shell representation of the query.
The following query

 where(p.lastname.eq("Matthews")).orderBy(p.firstname.asc()).offset(1).limit(5);
 

results in

 find({"lastname" : "Matthews"}).sort({"firstname" : 1}).skip(1).limit(5)
 

Note that encoding to String may fail when using data types that cannot be encoded or DBRef's without an identifier.

Overrides:

toString in class Object

Returns:

never null.

toJson

public String toJson()

Obtain the Mongo Shell json query representation.

Returns:

never null.

Since:

2.2

toJson

public String toJson(org.bson.json.JsonWriterSettings settings)

Obtain the json query representation applying given settings.

Parameters:

settings - must not be null.

Returns:

never null.

Since:

2.2