com.mongodb.client.model

Class UnwindOptions

java.lang.Object

com.mongodb.client.model.UnwindOptions

public final class UnwindOptions
extends Object

The options for an unwind aggregation pipeline stage

Since:

3.2

MongoDB documentation

$unwind

Since server release

3.2

Constructor Summary

Constructors

Constructor and Description
UnwindOptions()

Method Summary

Modifier and Type	Method and Description
String	getIncludeArrayIndex() Gets the includeArrayIndex field if set or null
UnwindOptions	includeArrayIndex(String arrayIndexFieldName) Sets the field to be used to store the array index of the unwound item
Boolean	isPreserveNullAndEmptyArrays() If true the unwind stage will include documents that have null values or empty arrays
UnwindOptions	preserveNullAndEmptyArrays(Boolean preserveNullAndEmptyArrays) Sets true if the unwind stage should include documents that have null values or empty arrays

Methods inherited from class java.lang.Object

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

Constructor Detail

UnwindOptions

public UnwindOptions()

Method Detail

isPreserveNullAndEmptyArrays

public Boolean isPreserveNullAndEmptyArrays()

If true the unwind stage will include documents that have null values or empty arrays

Returns:

the preserve null values and empty arrays value or null

preserveNullAndEmptyArrays

public UnwindOptions preserveNullAndEmptyArrays(Boolean preserveNullAndEmptyArrays)

Sets true if the unwind stage should include documents that have null values or empty arrays

Parameters:

preserveNullAndEmptyArrays - flag depicting if the unwind stage should include documents that have null values or empty arrays

Returns:

this

getIncludeArrayIndex

public String getIncludeArrayIndex()

Gets the includeArrayIndex field if set or null

Returns:

the includeArrayIndex field if set or null

includeArrayIndex

public UnwindOptions includeArrayIndex(String arrayIndexFieldName)

Sets the field to be used to store the array index of the unwound item

Parameters:

arrayIndexFieldName - the field to be used to store the array index of the unwound item

Returns:

this