IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Indices Exists API
editIndices Exists API
editIndices Exists Request
editThe high-level REST client uses a GetIndexRequest
for Indices Exists API. The index name (or indices' names) are required.
Optional arguments
editIndices Exists API also accepts following optional arguments, through a GetIndexRequest
:
Synchronous Execution
editboolean exists = client.indices().exists(request, RequestOptions.DEFAULT);
Asynchronous Execution
editThe asynchronous execution of an indices exists request requires both the
GetIndexRequest
instance and an ActionListener
instance to be passed
to the asynchronous method:
The asynchronous method does not block and returns immediately. Once it is
completed the ActionListener
is called back using the onResponse
method
if the execution successfully completed or using the onFailure
method if
it failed.
A typical listener for the Indices Exists looks like:
Response
editThe response is a boolean
value, indicating whether the index (or indices) exist:
boolean exists = client.indices().exists(request, RequestOptions.DEFAULT);