---
title: Code-level metrics
source: https://docs.newrelic.com/docs/apm/agents/java-agent/features/java-codestream-integration
---

Code-level metrics allow developers using the [New Relic CodeStream extension](https://docs.newrelic.com/docs/codestream/observability/code-level-metrics) to see APM data displayed contextually in their IDE, alongside individual methods in the code. This allows developers to be more proactive about addressing performance issues as they write and review code.

## Getting started

First, [install](https://docs.newrelic.com/docs/codestream/start-here/install-codestream) the New Relic CodeStream extension into your supported IDE of choice and log in.

> #### ⚠️ IMPORTANT
>
> Code-level metrics are available for Java agent version 7.10.0 or higher, and enabled by default for version 7.11.0 and higher. See [Java agent configuration: Config file](https://docs.newrelic.com/docs/apm/agents/java-agent/configuration/java-agent-configuration-config-file/#code-level-metrics) for instructions on how to enabled or disable it.

## Agent attributes

The Java agent reports and attaches the following attributes to spans produced by your application:

| **Name**         | **Description**                                                                | **Example**           |
| ---------------- | ------------------------------------------------------------------------------ | --------------------- |
| `code.function`  | The name of the instrumented function (Java method).                           | retrieveData          |
| `code.namespace` | The namespace (fully qualified class name) in which `code.function` is defined | com.example.MyService |

> #### ⚠️ IMPORTANT
>
> Spans created using the API method `NewRelic.getAgent().getTransaction().startSegment()` will not contain these attributes. To create a span that contain these attributes annotate a method with `@Trace` or use XML instrumentation.