Package org.springframework.data.mongodb.core.aggregation

Class ArrayOperators

java.lang.Object

org.springframework.data.mongodb.core.aggregation.ArrayOperators

public class ArrayOperators
extends Object

Gateway to array aggregation operations.

Since:

1.0

Author:

Christoph Strobl, Mark Paluch, Shashank Sharma, Divya Srivastava

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ArrayOperators.ArrayElemAt	AggregationExpression for $arrayElementAt.
static class	ArrayOperators.ArrayOperatorFactory
static class	ArrayOperators.ArrayToObject	AggregationExpression for $arrayToObject that transforms an array into a single document.
static class	ArrayOperators.ConcatArrays	AggregationExpression for $concatArrays.
static class	ArrayOperators.Filter	$filter AggregationExpression allows to select a subset of the array to return based on the specified condition.
static class	ArrayOperators.First	AggregationExpression for $first that returns the first element in an array.
static class	ArrayOperators.In	AggregationExpression for $in.
static class	ArrayOperators.IndexOfArray	AggregationExpression for $indexOfArray.
static class	ArrayOperators.IsArray	AggregationExpression for $isArray.
static class	ArrayOperators.Last	AggregationExpression for $last that returns the last element in an array.
static class	ArrayOperators.RangeOperator	AggregationExpression for $range.
static class	ArrayOperators.Reduce	AggregationExpression for $reduce.
static class	ArrayOperators.ReverseArray	AggregationExpression for $reverseArray.
static class	ArrayOperators.Size	AggregationExpression for $size.
static class	ArrayOperators.Slice	AggregationExpression for $slice.
static class	ArrayOperators.SortArray	AggregationExpression for $sortArray that sorts elements in an array.
static class	ArrayOperators.Zip	AggregationExpression for $zip.

Constructor Summary

Constructors

Constructor	Description
ArrayOperators()

Method Summary

Modifier and Type	Method	Description
static ArrayOperators.ArrayOperatorFactory	arrayOf(String fieldReference)	Take the array referenced by given fieldReference.
static ArrayOperators.ArrayOperatorFactory	arrayOf(Collection<?> values)	Take the given values AggregationExpression.
static ArrayOperators.ArrayOperatorFactory	arrayOf(AggregationExpression expression)	Take the array referenced resulting from the given AggregationExpression.

Methods inherited from class java.lang.Object

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

Constructor Details

ArrayOperators

public ArrayOperators()

Method Details

arrayOf

public static ArrayOperators.ArrayOperatorFactory arrayOf(String fieldReference)

Take the array referenced by given fieldReference.

Parameters:

fieldReference - must not be null.

Returns:

new instance of ArrayOperators.ArrayOperatorFactory.

arrayOf

public static ArrayOperators.ArrayOperatorFactory arrayOf(AggregationExpression expression)

Take the array referenced resulting from the given AggregationExpression.

Parameters:

expression - must not be null.

Returns:

new instance of ArrayOperators.ArrayOperatorFactory.

arrayOf

public static ArrayOperators.ArrayOperatorFactory arrayOf(Collection<?> values)

Take the given values AggregationExpression.

Parameters:

values - must not be null.

Returns:

new instance of ArrayOperators.ArrayOperatorFactory.

Since:

2.2