Lucene 4.7.2 expressions API

The Expressions Module for Apache Lucene

See:
Description

Packages

org.apache.lucene.expressions	expressions
org.apache.lucene.expressions.js	Javascript expressions

The Expressions Module for Apache Lucene

The expressions module is new to Lucene 4.6. It provides an API for dynamically computing per-document values based on string expressions.

The module is organized in two sections:

1. org.apache.lucene.expressions - The abstractions and simple utilities for common operations like sorting on an expression
2. org.apache.lucene.expressions.js - A compiler for a subset of JavaScript expressions

For sample code showing how to use the API, see Expression.