Package org.apache.solr.search

Class ExpressionValueSourceParser

java.lang.Object

org.apache.solr.search.ValueSourceParser

org.apache.solr.search.ExpressionValueSourceParser

All Implemented Interfaces:

NamedListInitializedPlugin

public class ExpressionValueSourceParser
extends ValueSourceParser

A ValueSource parser configured with a pre-compiled expression that can then be evaluated at request time. It's powered by the Lucene Expressions module, which is a subset of JavaScript.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ExpressionValueSourceParser.SolrBindings	A bindings class that uses schema fields to resolve variables.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	EXPRESSION_KEY
static final String	SCORE_KEY

Fields inherited from class org.apache.solr.search.ValueSourceParser

standardValueSourceParsers

Constructor Summary

Constructors

Constructor	Description
ExpressionValueSourceParser()

Method Summary

Modifier and Type	Method	Description
void	init(org.apache.solr.common.util.NamedList<?> args)	init will be called just once, immediately after creation.
org.apache.lucene.queries.function.ValueSource	parse(FunctionQParser fp)	Parse the user input into a ValueSource.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

SCORE_KEY

public static final String SCORE_KEY

See Also:

• Constant Field Values

EXPRESSION_KEY

public static final String EXPRESSION_KEY

See Also:

• Constant Field Values

Constructor Details

ExpressionValueSourceParser

public ExpressionValueSourceParser()

Method Details

init

public void init(org.apache.solr.common.util.NamedList<?> args)

Description copied from interface: NamedListInitializedPlugin

init will be called just once, immediately after creation.

Source of the initialization arguments will typically be solrconfig.xml, but will ultimately depends on the plugin itself

Parameters:

args - non-null list of initialization parameters (may be empty)

parse

public org.apache.lucene.queries.function.ValueSource parse(FunctionQParser fp)
                                                     throws SyntaxError

Description copied from class: ValueSourceParser

Parse the user input into a ValueSource.

Specified by:

parse in class ValueSourceParser

Throws:

SyntaxError