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

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

```
public final class GraphLookupOptions
extends Object
```
The options for a graphLookup aggregation pipeline stage

Since:

3.4

MongoDB documentation
graphLookup
Since server release
3.4

Constructor Summary

Constructors
Constructor Description

GraphLookupOptions()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`GraphLookupOptions`	`depthField(String field)`	The name of the field in which to store the depth value
`boolean`	`equals(Object o)`
`String`	`getDepthField()`
`Integer`	`getMaxDepth()`
`Bson`	`getRestrictSearchWithMatch()`
`int`	`hashCode()`
`GraphLookupOptions`	`maxDepth(Integer max)`	Specifies a maximum recursive depth for the $graphLookup.
`GraphLookupOptions`	`restrictSearchWithMatch(Bson filter)`	A document specifying additional conditions for the recursive search
`String`	`toString()`

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

Constructor Detail
- GraphLookupOptions
```
public GraphLookupOptions()
```

Method Detail

depthField

public GraphLookupOptions depthField(@Nullable
                                     String field)

The name of the field in which to store the depth value

Parameters:: field - the field name
Returns:: this

getDepthField

@Nullable
public String getDepthField()

Returns:: the field name

maxDepth
```
public GraphLookupOptions maxDepth(@Nullable
                                   Integer max)
```
Specifies a maximum recursive depth for the $graphLookup. This number must be non-negative.

Parameters:

max - the maximum depth

Returns:

this

getMaxDepth

@Nullable
public Integer getMaxDepth()

Returns:: the maximum depth

restrictSearchWithMatch

public GraphLookupOptions restrictSearchWithMatch(@Nullable
                                                  Bson filter)

A document specifying additional conditions for the recursive search

Parameters:: filter - the filter expression
Returns:: this
Since:: 3.6

getRestrictSearchWithMatch
```
@Nullable
public Bson getRestrictSearchWithMatch()
```
Returns:

the filter expression

Since:

3.6

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