org.eclipse.rdf4j.sail.lucene

Class QuerySpec

java.lang.Object

org.eclipse.rdf4j.sail.lucene.QuerySpec

All Implemented Interfaces:

SearchQueryEvaluator

public class QuerySpec
extends Object
implements SearchQueryEvaluator

A QuerySpec holds information extracted from a TupleExpr corresponding with a single Lucene query. Access the patterns or use the get-methods to get the names of the variables to bind.

Constructor Summary

Constructors

Constructor and Description

QuerySpec(org.eclipse.rdf4j.query.algebra.StatementPattern matchesPattern, org.eclipse.rdf4j.query.algebra.StatementPattern queryPattern, org.eclipse.rdf4j.query.algebra.StatementPattern propertyPattern, org.eclipse.rdf4j.query.algebra.StatementPattern scorePattern, org.eclipse.rdf4j.query.algebra.StatementPattern snippetPattern, org.eclipse.rdf4j.query.algebra.StatementPattern typePattern, org.eclipse.rdf4j.model.Resource subject, String queryString, org.eclipse.rdf4j.model.IRI propertyURI)

Method Summary

Modifier and Type	Method and Description
org.eclipse.rdf4j.query.algebra.StatementPattern	getMatchesPattern()
String	getMatchesVariableName() return the name of the bound variable that should match the query
org.eclipse.rdf4j.query.algebra.QueryModelNode	getParentQueryModelNode()
org.eclipse.rdf4j.query.algebra.StatementPattern	getPropertyPattern()
org.eclipse.rdf4j.model.IRI	getPropertyURI()
String	getPropertyVariableName()
org.eclipse.rdf4j.query.algebra.StatementPattern	getQueryPattern()
String	getQueryString() return the literal expression of the query or null, if none set.
org.eclipse.rdf4j.model.IRI	getQueryType() the type of query, must equal LuceneSailSchema.LUCENE_QUERY.
org.eclipse.rdf4j.query.algebra.StatementPattern	getScorePattern()
String	getScoreVariableName() The variable name associated with the query score
org.eclipse.rdf4j.query.algebra.StatementPattern	getSnippetPattern()
String	getSnippetVariableName()
org.eclipse.rdf4j.model.Resource	getSubject()
org.eclipse.rdf4j.query.algebra.StatementPattern	getTypePattern()
String	toString()
void	updateQueryModelNodes(boolean hasResult)

Methods inherited from class java.lang.Object

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

Constructor Detail

QuerySpec

public QuerySpec(org.eclipse.rdf4j.query.algebra.StatementPattern matchesPattern,
                 org.eclipse.rdf4j.query.algebra.StatementPattern queryPattern,
                 org.eclipse.rdf4j.query.algebra.StatementPattern propertyPattern,
                 org.eclipse.rdf4j.query.algebra.StatementPattern scorePattern,
                 org.eclipse.rdf4j.query.algebra.StatementPattern snippetPattern,
                 org.eclipse.rdf4j.query.algebra.StatementPattern typePattern,
                 org.eclipse.rdf4j.model.Resource subject,
                 String queryString,
                 org.eclipse.rdf4j.model.IRI propertyURI)

Method Detail

getParentQueryModelNode

public org.eclipse.rdf4j.query.algebra.QueryModelNode getParentQueryModelNode()

Specified by:

getParentQueryModelNode in interface SearchQueryEvaluator

updateQueryModelNodes

public void updateQueryModelNodes(boolean hasResult)

Specified by:

updateQueryModelNodes in interface SearchQueryEvaluator

getMatchesPattern

public org.eclipse.rdf4j.query.algebra.StatementPattern getMatchesPattern()

getMatchesVariableName

public String getMatchesVariableName()

return the name of the bound variable that should match the query

Returns:

the name of the variable or null, if no name set

getQueryPattern

public org.eclipse.rdf4j.query.algebra.StatementPattern getQueryPattern()

getPropertyPattern

public org.eclipse.rdf4j.query.algebra.StatementPattern getPropertyPattern()

getPropertyVariableName

public String getPropertyVariableName()

getScorePattern

public org.eclipse.rdf4j.query.algebra.StatementPattern getScorePattern()

getScoreVariableName

public String getScoreVariableName()

The variable name associated with the query score

Returns:

the name or null, if no score is queried in the pattern

getSnippetPattern

public org.eclipse.rdf4j.query.algebra.StatementPattern getSnippetPattern()

getSnippetVariableName

public String getSnippetVariableName()

getTypePattern

public org.eclipse.rdf4j.query.algebra.StatementPattern getTypePattern()

getQueryType

public org.eclipse.rdf4j.model.IRI getQueryType()

the type of query, must equal LuceneSailSchema.LUCENE_QUERY. A null type is possible, but not valid.

Returns:

the type of the Query or null, if no type assigned.

getSubject

public org.eclipse.rdf4j.model.Resource getSubject()

getQueryString

public String getQueryString()

return the literal expression of the query or null, if none set. (null values are possible, but not valid).

Returns:

the query or null

getPropertyURI

public org.eclipse.rdf4j.model.IRI getPropertyURI()

Returns:

The URI of the property who's literal values should be searched, or null

toString

public String toString()

Overrides:

toString in class Object