org.modeshape.jcr.query.lucene
Class LuceneQueryEngine

java.lang.Object
  org.modeshape.jcr.query.process.QueryEngine
      org.modeshape.jcr.query.lucene.LuceneQueryEngine

public class LuceneQueryEngine
extends QueryEngine

A QueryEngine that uses Lucene for answering queries. Each repository uses a single LuceneQueryEngine instance, and all sessions share the same engine. Therefore, this engine is threadsafe (and actually immutable), creating objects for each submitted query.

Nested Class Summary

protected static class	LuceneQueryEngine.LuceneAccessQuery The component that is created to represent a single access query and, when executed, transforms that access query into a single Lucene query and issues it against Lucene.
protected static class	LuceneQueryEngine.LuceneQueryProcessor The QueryProcessor implementation used by this LuceneQueryEngine.
static class	LuceneQueryEngine.TupleCollector

Field Summary

Fields inherited from class org.modeshape.jcr.query.process.QueryEngine

optimizer, planner, processor

Constructor Summary

LuceneQueryEngine(ExecutionContext context, String repositoryName, Planner planner, Optimizer optimizer, org.hibernate.search.engine.spi.SearchFactoryImplementor searchFactory, org.apache.lucene.util.Version version)

Method Summary

QueryIndexing	getQueryIndexing() Get the interface for updating the indexes.
QueryResults	query(ExecutionContext context, RepositoryCache repositoryCache, Set<String> workspaceNames, Map<String,NodeCache> overriddenNodeCachesByWorkspaceName, QueryCommand query, Schemata schemata, PlanHints hints, Map<String,Object> variables) Execute the supplied query against the named workspace, using the supplied hints, schemata and variables.

Methods inherited from class org.modeshape.jcr.query.process.QueryEngine

determineQueryResultColumns, execute

Methods inherited from class java.lang.Object

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

Constructor Detail

LuceneQueryEngine

public LuceneQueryEngine(ExecutionContext context,
                         String repositoryName,
                         Planner planner,
                         Optimizer optimizer,
                         org.hibernate.search.engine.spi.SearchFactoryImplementor searchFactory,
                         org.apache.lucene.util.Version version)

Parameters:

context - the execution context for the repository

repositoryName - the name of the repository

planner - the planner that should be used

optimizer - the optimizer that should be used

searchFactory - the search factory for accessing the indexes

version - the Lucene version used by the indexes

Method Detail

getQueryIndexing

public QueryIndexing getQueryIndexing()

Get the interface for updating the indexes.

Returns:

the indexing interface

query

public QueryResults query(ExecutionContext context,
                          RepositoryCache repositoryCache,
                          Set<String> workspaceNames,
                          Map<String,NodeCache> overriddenNodeCachesByWorkspaceName,
                          QueryCommand query,
                          Schemata schemata,
                          PlanHints hints,
                          Map<String,Object> variables)
                   throws InvalidQueryException

Execute the supplied query against the named workspace, using the supplied hints, schemata and variables.

Parameters:

context - the context in which the query is being executed; may not be null

repositoryCache - the repository cache that should be used to load results; may not be null

workspaceNames - the name of each workspace to be queried, or an empty set if all the workspaces should be queried; may not be null

overriddenNodeCachesByWorkspaceName - the NodeCache instances that should be used to load results, which will be used instead of the RepositoryCache's NodeCache for a given workspace name; may be null or empty

query - the query

schemata - the schemata information that should be used for all processing of this query

hints - the hints

variables - the variables

Returns:

the results

Throws:

InvalidQueryException - if the