com.couchbase.client.java.kv

Class ExistsResult

java.lang.Object

com.couchbase.client.java.kv.ExistsResult

public class ExistsResult
extends Object

Result returned from an exists KeyValue operation.

Since:

3.0.0

Method Summary

Modifier and Type	Method and Description
long	cas() Returns the CAS value of document at the time of loading.
boolean	equals(Object o)
boolean	exists() True if the document exists, false otherwise.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

cas

public long cas()

Returns the CAS value of document at the time of loading.

Note that if the document does not exist, this will return 0!

The CAS value is an opaque identifier which is associated with a specific state of the document on the server. It can be used during a subsequent mutation to make sure that the document has not been modified in the meantime.

If document on the server has been modified in the meantime the SDK will raise a CasMismatchException. In this case the caller is expected to re-do the whole "fetch-modify-update" cycle again. Please refer to the SDK documentation for more information on CAS mismatches and subsequent retries.

exists

public boolean exists()

True if the document exists, false otherwise.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object