Question 1

How to set up Rocker templates with Maven?

Accepted Answer

Add the rocker-maven-plugin to your pom.xml and configure the template directory; the plugin automatically generates Java sources during the build phase, with detailed properties like templateDirectory and outputDirectory.

Question 2

What's the performance difference between Rocker and FreeMarker?

Accepted Answer

According to the benchmark in the README, Rocker is about 250% faster than FreeMarker while using significantly less memory, due to its zero-copy rendering and lack of reflection.

Question 3

How do I handle null values safely in Rocker templates?

Accepted Answer

Rocker provides a special '?' presence operator for null-safe evaluation, allowing concise handling of nullable variables without explicit Java null checks, as described in the syntax documentation.

Question 4

Does Rocker work with Spring Boot?

Accepted Answer

While not explicitly listed, Rocker can be integrated with Spring Boot via its framework-agnostic design, but it may require custom configuration compared to supported frameworks like Micronaut.

Question 5

Rocker or Thymeleaf for a new Java web app?

Accepted Answer

Rocker excels in performance and compile-time safety but has a steeper learning curve; Thymeleaf offers more familiar HTML-like syntax and broader community support but is slower and uses reflection.

Question 6

How to enable hot reloading in Rocker during development?

Accepted Answer

Add the rocker-compiler dependency in provided scope and set the system property 'rocker.reloading=true' or programmatically via RockerRuntime, with two flavors offering trade-offs between type safety and flexibility.

Rocker

What is Rocker?

Overview

Use Cases

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Related Projects

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Pros & Cons

Pros

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Frequently Asked Questions