LookupInSpec (Couchbase Java SDK 3.4.5 API)

java.lang.Object
- com.couchbase.client.java.kv.LookupInSpec

Direct Known Subclasses:

LookupInSpecStandard
```
public abstract class LookupInSpec
extends Object
```
Defines specs to lookup parts in a JSON document.
Operations allow specifying an empty path ("") which means that the root document level is used (so it will be applied to the full document). By nature it makes sense to only use such a command in isolation, but it can be combined with xattr (extended attributes, a document metadata section) operations as well.

Constructor Summary

Constructors
Constructor Description

LookupInSpec()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`static LookupInSpecStandard`	`count(String path)`	Counts the number of values at a given path in the document.
`static LookupInSpecStandard`	`exists(String path)`	Checks if a value at the given path exists in the document.
`static LookupInSpecStandard`	`get(String path)`	Fetches the content from a field (if present) at the given path.
`abstract CoreSubdocGetCommand`	`toCore()`	Internal operation called from the encoding side that encodes the spec into its internal representation.

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

- Constructor Detail
  - LookupInSpec
```
public LookupInSpec()
```
- Method Detail
  - toCore
```
@Internal
public abstract CoreSubdocGetCommand toCore()
```
    Internal operation called from the encoding side that encodes the spec into its internal representation.
  - get
```
public static LookupInSpecStandard get(String path)
```
    Fetches the content from a field (if present) at the given path.
    
    Parameters:
    
    path - the path identifying where to get the value.
    
    Returns:
    
    the created LookupInSpec.
  - exists
```
public static LookupInSpecStandard exists(String path)
```
    Checks if a value at the given path exists in the document.
    
    Parameters:
    
    path - the path to check if the field exists.
    
    Returns:
    
    the created LookupInSpec.
  - count
```
public static LookupInSpecStandard count(String path)
```
    Counts the number of values at a given path in the document.
    
    Parameters:
    
    path - the path identifying where to count the values.
    
    Returns:
    
    the created LookupInSpec.