how to change field property of document in Elasticsearch using java？

Question

I hava a document in Elasticsearch：

{
  "_index": "test",
  "_type": "document",
  "_id": "1",
  "_score": 1,
  "_source": {
      "class": "aaa",
      "id": 1,
      "items": [{
          "class": "aaa",
          "id": 1
      }, {
          "class": "ccc",
          "id": 2
      }],
      "bianhao": "123"
  } 
}

I want to replace {"class": "ccc","id": 2} of items with {"class": "ccc12","id": 2},how to achieve that?

Val · Accepted Answer · 2016-08-05 07:49:00Z

1

You can do it like this:

Map<String, Object> params = new HashMap<>();
params.put("idParam", 2);
params.put("classParam", "ccc12");

client.prepareUpdate("test", "document", "1")
    .setScript(new Script(
            "ctx._source.items.find{ it.id == idParam }['class'] = classParam",
            ScriptService.ScriptType.INLINE, null, params))
    .get();

UPDATE

And if you want to change multiple fields, you can do it like this:

Map<String, Object> params = new HashMap<>();
params.put("idParam", 2);
params.put("classParam", "ccc12");
params.put("field1Param", "value2");
params.put("field2Param", "value3");

client.prepareUpdate("test", "document", "1")
    .setScript(new Script(
            "def item = ctx._source.items.find{ it.id == idParam}; if (item) {item['class'] = classParam; item['field1'] = field1Param; item['field2'] = field2Param}",
            ScriptService.ScriptType.INLINE, null, params))
    .get();

edited Aug 5, 2016 at 7:49

answered Aug 5, 2016 at 7:02

Val

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3 Comments

Yao Pan Over a year ago

In this case,firstly find 'id' then set value to 'class'.I mean if there are many fields,{"id": 2,"class":"ccc","name":"dddd","field1":"value1","field1":"value2"},how to replace them once?

Val Over a year ago

Do you want to change multiple fields?

Yao Pan Over a year ago

This problem has been bothering me for serval days.Can you help me out ？@Val stackoverflow.com/questions/38886939/…

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