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

Interface ArrayOperators.Reduce.ReduceBuilder

Enclosing class:

ArrayOperators.Reduce

public static interface ArrayOperators.Reduce.ReduceBuilder

Author:

Christoph Strobl

Method Summary

Modifier and Type	Method	Description
ArrayOperators.Reduce	reduce(AggregationExpression expression)	Define the AggregationExpression to apply to each element in the input array in left-to-right order.
ArrayOperators.Reduce	reduce(ArrayOperators.Reduce.PropertyExpression... expressions)	Define the ArrayOperators.Reduce.PropertyExpressions to apply to each element in the input array in left-to-right order.

Method Details

reduce

ArrayOperators.Reduce reduce(AggregationExpression expression)

Define the AggregationExpression to apply to each element in the input array in left-to-right order.
NOTE: During evaluation of the in expression the variable references ArrayOperators.Reduce.Variable.THIS and ArrayOperators.Reduce.Variable.VALUE are available.

Parameters:

expression - must not be null.

Returns:

new instance of ArrayOperators.Reduce.

reduce

ArrayOperators.Reduce reduce(ArrayOperators.Reduce.PropertyExpression... expressions)

Define the ArrayOperators.Reduce.PropertyExpressions to apply to each element in the input array in left-to-right order.
NOTE: During evaluation of the in expression the variable references ArrayOperators.Reduce.Variable.THIS and ArrayOperators.Reduce.Variable.VALUE are available.

Parameters:

expressions - must not be null.

Returns:

new instance of ArrayOperators.Reduce.