org.springframework.data.mongodb.core.aggregation

Interface ScriptOperators.Accumulator.AccumulatorInitBuilder

Enclosing class:

ScriptOperators.Accumulator

public static interface ScriptOperators.Accumulator.AccumulatorInitBuilder

Method Summary

Modifier and Type	Method and Description
default ScriptOperators.Accumulator.AccumulatorAccumulateBuilder	init(ScriptOperators.Function function) Define the init ScriptOperators.Function for the accumulators initial state.
ScriptOperators.Accumulator.AccumulatorInitArgsBuilder	init(String function) Define the init function for the accumulators initial state.
ScriptOperators.Accumulator.AccumulatorInitBuilder	lang(String lang) The language used in the $accumulator code.

Method Detail

init

default ScriptOperators.Accumulator.AccumulatorAccumulateBuilder init(ScriptOperators.Function function)

Define the init ScriptOperators.Function for the accumulators initial state. The function receives its arguments from the initArgs array expression.
function(initArg1, initArg2, ...) { ... return initialState }

Parameters:

function - must not be null.

Returns:

this.

init

ScriptOperators.Accumulator.AccumulatorInitArgsBuilder init(String function)

Define the init function for the accumulators initial state. The function receives its arguments from the ScriptOperators.Accumulator.AccumulatorInitArgsBuilder.initArgs(Object...) array expression.
function(initArg1, initArg2, ...) { ... return initialState }

Parameters:

function - must not be null.

Returns:

this.

lang

ScriptOperators.Accumulator.AccumulatorInitBuilder lang(String lang)

The language used in the $accumulator code.

Parameters:

lang - must not be null. Default is js.

Returns:

this.