Node Connectivity
There are 4 nodes that can be used as predessesor
for a node with an input port of type 
Elasticsearch Search (ES 8).
Elasticsearch Index (ES 8)
Configures the index of an Elasticsearch Search element.
Elasticsearch Query (ES 8)
Configures the query parameter of an Elasticsearch Search element.
Elasticsearch Route (ES 8)
Configures the route parameter of an Elasticsearch Search element.
Elasticsearch Search (ES 8)
Creates a new Elasticsearch Search to be configured and executed by downstream nodes.