Package org.apache.lucene.expressions

Expressions.

See: Description

Class Summary

Class	Description
Bindings	Binds variable names in expressions to actual data.
Expression	Base class that computes the value of an expression for a document.
SimpleBindings	Simple class that binds expression variable names to SortFields or other Expressions.

Package org.apache.lucene.expressions Description

Expressions.

Expression - result of compiling an expression, which can evaluate it for a given document. Each expression can have external variables are resolved by Bindings.

Bindings - abstraction for binding external variables to a way to get a value for those variables for a particular document (DoubleValuesSource).

SimpleBindings - default implementation of bindings which provide easy ways to bind sort fields and other expressions to external variables