# Filter elements of a list using painless syntax

**URL:** <https://discuss.elastic.co/t/filter-elements-of-a-list-using-painless-syntax/142752>\
**Category:** Elasticsearch\
**Tags:** elastic-stack-alerting\
**Created:** [August 2, 2018, 11:19am UTC](https://discuss.elastic.co/t/filter-elements-of-a-list-using-painless-syntax/142752 "2018-08-02T11:19:24Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![sahil\_sawhney](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sahil_sawhney/32/88932_2.png) [@sahil\_sawhney](https://discuss.elastic.co/u/sahil_sawhney)\
**Post date:** [August 2, 2018, 11:19am UTC](https://discuss.elastic.co/t/filter-elements-of-a-list-using-painless-syntax/142752/1 "2018-08-02T11:19:24Z")

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I need to filter a list and transform the payload. Using Elasticsearch 5.6

Example(Groovy)  
def list = [1,2,3,4,5]  
def result = list.findAll { it \> 2 }

The result would be [3,4,5]

This is showing syntax exception in my watcher.  
Need a painless syntax to achieve above functionality

---

<div class="post-metadata">

**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\
**Post date:** [August 2, 2018, 11:36am UTC](https://discuss.elastic.co/t/filter-elements-of-a-list-using-painless-syntax/142752/2 "2018-08-02T11:36:15Z")

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try

```auto
list.stream().filter(x -> x > 2).collect(Collectors.toList())

```

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<div class="post-metadata">

**Author:** ![sahil\_sawhney](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sahil_sawhney/32/88932_2.png) [@sahil\_sawhney](https://discuss.elastic.co/u/sahil_sawhney)\
**Post date:** [August 2, 2018, 12:16pm UTC](https://discuss.elastic.co/t/filter-elements-of-a-list-using-painless-syntax/142752/3 "2018-08-02T12:16:58Z")

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Thanks spinscale  
Just realized painless corresponds to java 8 syntax.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 30, 2018, 12:17pm UTC](https://discuss.elastic.co/t/filter-elements-of-a-list-using-painless-syntax/142752/4 "2018-08-30T12:17:09Z")

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