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Lucene 8.8.1 expressions API

The Expressions Module for Apache Lucene

See: Description

Packages 
Package Description
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.

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