how to delete 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
        }],
        "lastUpdated": "2016-07-22T11:26:56Z",
        "processInstance": {
            "class": "bbb"
        },
        "bianhao": "123"
    }
}

how to delete id or class of items using java? how to delete {"class": "ccc","id": 2} using java?

I know how to delete a field,using:

client.prepareUpdate("test", "document", "1")
        .setScript(new Script(
                "ctx._source.remove(\"bianhao\")",
                ScriptService.ScriptType.INLINE, null, null))
        .get();

the content of items is json array,I have not found the method.

Val · Accepted Answer · 2016-08-05 03:23:59Z

1

You can achieve it like this:

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

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

answered Aug 5, 2016 at 3:23

Val

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5 Comments

Yao Pan Over a year ago

Is there replaceAll() method?

Val Over a year ago

What do you want to achieve?

Yao Pan Over a year ago

change {"class": "ccc","id": 2} to {"class": "ccc12","id": 2}

Val Over a year ago

I suggest you create another question as this is a different issue from the topic of this question.

Yao Pan Over a year ago

I asked a new question.stackoverflow.com/questions/38782947/…

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