elasticsearch Get multiGet Java Client

Get APIedit

The get API allows to get a typed JSON document from the index based on its id. The following example gets a JSON document from an index called twitter, under a type called tweet, with id valued 1:

GetResponse response = client.prepareGet("twitter", "tweet", "1").get();

For more information on the get operation, check out the REST get docs.

Multi Get APIedit

The multi get API allows to get a list of documents based on their index, type and id:

MultiGetResponse multiGetItemResponses = client.prepareMultiGet()
    .add("twitter", "tweet", "1")           
    .add("twitter", "tweet", "2", "3", "4") 
    .add("another", "type", "foo")          
    .get();

for (MultiGetItemResponse itemResponse : multiGetItemResponses) { 
    GetResponse response = itemResponse.getResponse();
    if (response.isExists()) {                      
        String json = response.getSourceAsString(); 
    }
}

	get by a single id
	or by a list of ids for the same index / type
	you can also get from another index
	iterate over the result set
	you can check if the document exists
	access to the _source field

For more information on the multi get operation, check out the REST multi get docs.