Cava is an efficient programming language that is developed by the OpenSearch engine team based on the low-level virtual machine (LLVM) project. Cava uses the syntax similar to that of Java and can achieve equivalent performance as C++. Cava is an object-oriented programming language. It supports just-in-time (JIT) compilation and various security checks to ensure more robust programs.
You can use Cava and the Cava libraries that are provided by OpenSearch to design a dedicated sort plug-in in OpenSearch. A Cava-based sort plug-in has the following benefits compared with the expressions that are supported by OpenSearch:
More diversified custom designs: Cava allows you to customize a sort plug-in by using more diversified syntax. For example, you can use for loops and define functions and classes based on your business requirements.
Easier to maintain: A Cava-based sort plug-in is more readable than expressions and easier to maintain.
Easier to learn: Cava uses the syntax similar to that of Java. If you are familiar with Java, you can understand and use Cava for development with ease. This reduces learning costs.