BucketOptions (mongo-java-driver 3.12.10 API)乐学网一站式学习平台

java.lang.Object
- com.mongodb.client.model.BucketOptions

```
public class BucketOptions
extends Object
```
The options for a $bucket aggregation pipeline stage

Since:

3.4

MongoDB documentation
$bucket
Since server release
3.4

Constructor Summary

Constructors
Constructor Description

BucketOptions()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`BucketOptions`	`defaultBucket(Object name)`	The name of the default bucket for values outside the defined buckets
`boolean`	`equals(Object o)`
`Object`	`getDefaultBucket()`
`List<BsonField>`	`getOutput()`
`int`	`hashCode()`
`BucketOptions`	`output(BsonField... output)`	The definition of the output document in each bucket
`BucketOptions`	`output(List<BsonField> output)`	The definition of the output document in each bucket
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - BucketOptions
```
public BucketOptions()
```
- Method Detail
  - defaultBucket
```
public BucketOptions defaultBucket(@Nullable
                                   Object name)
```
    The name of the default bucket for values outside the defined buckets
    
    Parameters:
    
    name - the bucket value
    
    Returns:
    
    this
  - getDefaultBucket
```
@Nullable
public Object getDefaultBucket()
```
    Returns:
    
    the default bucket value
  - getOutput
```
@Nullable
public List<BsonField> getOutput()
```
    Returns:
    
    the output document definition
  - output
```
public BucketOptions output(BsonField... output)
```
    The definition of the output document in each bucket
    
    Parameters:
    
    output - the output document definition
    
    Returns:
    
    this
  - output
```
public BucketOptions output(List<BsonField> output)
```
    The definition of the output document in each bucket
    
    Parameters:
    
    output - the output document definition
    
    Returns:
    
    this
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object