We now support partial filter expression on indexes via Index.partial(…). This allows to create partial indexes that only index the documents in a collection that meet a specified filter expression.
new Index().named("idx").on("k3y", ASC).partial(filter(where("age").gte(10)))
The filter expression can be set via a plain DBObject or a CriteriaDefinition and is mapped against the associated domain type.
Original pull request: #431.
We now make sure to quote single and double ticks in the replacement values before actually appending them to the query. We also replace single ticks around parameters in the actual raw annotated query by double quotes to make sure they are treated as a single string parameter.
Reformat code according to Spring Data style. Add test for authenticated use. Add JavaDoc to newly introduced methods. Allow configuration of an authentication database. Update reference documentation.
Original pull request: #419.
We now support the $graphLookup aggregation pipeline stage via Aggregation to perform recursive lookup adding the lookup result as array to documents entering $graphLookup.
TypedAggregation<Employee> agg = Aggregation.newAggregation(Employee.class,
graphLookup("employee")
.startWith("reportsTo")
.connectFrom("reportsTo")
.connectTo("name")
.depthField("depth")
.maxDepth(5)
.as("reportingHierarchy"));
Original Pull Request: #424
We now support the $replaceRoot stage in aggregation pipelines. $replaceRoot can reference either a field, an aggregation expression or it can be used to compose a replacement document.
newAggregation(
replaceRoot().withDocument()
.andValue("value").as("field")
.and(MULTIPLY.of(field("total"), field("discounted")))
);
newAggregation(
replaceRoot("item")));
Original Pull Request: #422
We now support the $count stage in aggregation pipelines.
newAggregation(
match(where("hotelCode").is("0360")),
count().as("documents"));
Original Pull Request: #422
We now support the following MongoDB 3.4 aggregation operators:
$indexOfBytes, $indexOfCP, $split, $strLenBytes, $strLenCP, $substrCP, $indexOfArray, $range, $reverseArray, $reduce, $zip, $in, $isoDayOfWeek, $isoWeek, $isoWeekYear, $switch and $type.
Original pull request: #423.
Use InheritingExposedFieldsAggregationOperationContext instead of anonymous context class for condition mapping. Drop aggregation input collections before tests. Minor reformatting.
Original pull request: #417.
We now support $let in aggregation $project stage.
ExpressionVariable total = newExpressionVariable("total").forExpression(ADD.of(field("price"), field("tax")));
ExpressionVariable discounted = newExpressionVariable("discounted").forExpression(Cond.when("applyDiscount").then(0.9D).otherwise(1.0D));
newAggregation(Sales.class,
project()
.and(define(total, discounted)
.andApply(MULTIPLY.of(field("total"), field("discounted"))))
.as("finalTotal"));
Original pull request: #417.
Renamed CondOperator to Cond and IfNullOperator to IfNull. Both conditional operations are now available from ConditionalOperators.when and ConditionalOperators.ifNull and accept AggregationExpressions for conditions and values.
Original Pull Request: #421
We now also accept CriteriaDefinition next to Criteria for Aggregation.match. The existing match(Criteria) method remains to preserve binary compatibility.
Add property to field name mapping for Sort orders by moving Sort mapping to UpdateMapper. Fix typo. Add JavaDoc. Reformat code. Remove trailing whitespaces.
Original pull request: #405.
