Node Connectivity
There are 5 nodes that can be used as predessesor
for a node with an input port of type 
Elasticsearch Connection.
Elasticsearch Connector
Creates an Elasticsearch connection.
Elasticsearch Index
Configures the index of an Elasticsearch Search element.
Elasticsearch Query
Configures the query parameter of an Elasticsearch Search element.
Elasticsearch Route
Configures the route parameter of an Elasticsearch Search element.
Elasticsearch Search
Creates a new Elasticsearch Search to be configured and executed by downstream nodes.