Package com.attivio.util.query

Class QueryUtils

java.lang.Object

com.attivio.util.query.QueryUtils

public final class QueryUtils
extends java.lang.Object

Utility functions for working with queries.

Method Summary

Modifier and Type	Method	Description
static Query	createIdQuery(java.lang.String id)	Construct a query that will return only the document specified by id.
static boolean	isMatchAll(Query query)	Get if query is a *:* query.
static Query	resolveQuery(QueryRequest request)	Resolve the query from request.
static Query	rewrite(Query query, QueryHandler handler)	Null Safe rewrite of query using handler.
static void	rewrite(java.util.List<Query> queries, QueryHandler handler)
static void	rewriteAll(QueryRequest request, QueryHandler handler)	Rewrite all queries in request using handler
static void	rewriteFacets(java.util.List<FacetRequest> facets, QueryHandler handler)	Rewrite any embedded queries in facets using handler.
static void	rewriteFields(FieldExpression[] fields, QueryHandler handler)
static Query	setQueryLanguage(Query query, java.lang.String language)	Set the query language for query to language.
static Query	setQueryString(Query query, java.lang.String value)	Set the query string for query to value.

Methods inherited from class java.lang.Object

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

Method Detail

resolveQuery

public static Query resolveQuery(QueryRequest request)

Resolve the query from request.

This method applies all filters and boosts on request to the returned query.

isMatchAll

public static boolean isMatchAll(Query query)

Get if query is a *:* query.

createIdQuery

public static Query createIdQuery(java.lang.String id)

Construct a query that will return only the document specified by id.

setQueryString

public static Query setQueryString(Query query,
                                   java.lang.String value)

Set the query string for query to value.

setQueryLanguage

public static Query setQueryLanguage(Query query,
                                     java.lang.String language)

Set the query language for query to language.

rewriteAll

public static void rewriteAll(QueryRequest request,
                              QueryHandler handler)

Rewrite all queries in request using handler

WARNING: do not use this method unless you are sure you want to modify absolutely all queries in request.

This method rewrites all queries in: QueryRequest.getQuery(), QueryRequest.getBoostQueries(), QueryRequest.getFilters(), QueryRequest.getFields(), QueryRequest.getFacets().

rewrite

public static Query rewrite(Query query,
                            QueryHandler handler)

Null Safe rewrite of query using handler.

rewrite

public static void rewrite(java.util.List<Query> queries,
                           QueryHandler handler)

rewriteFields

public static void rewriteFields(FieldExpression[] fields,
                                 QueryHandler handler)

rewriteFacets

public static void rewriteFacets(java.util.List<FacetRequest> facets,
                                 QueryHandler handler)

Rewrite any embedded queries in facets using handler.