---
Title: RedisGears readers
alwaysopen: false
categories:
- docs
- operate
- stack
description: Extracts data from the database and creates records to pass through a
  RedisGears pipeline.
hideListLinks: true
linkTitle: Readers
weight: 60
---

A reader extracts data from the database and creates records.

The [`GearsBuilder.CreateGearsBuilder(reader)`]({{< relref "/operate/oss_and_stack/stack-with-enterprise/gears-v1/jvm/classes/gearsbuilder/creategearsbuilder" >}}) function takes a reader as a parameter and passes the generated records through a pipeline of RedisGears functions.

## Classes

{{<table-children columnNames="Class,Description" columnSources="LinkTitle,Description" enableLinks="LinkTitle">}}