com.franz.agjena.query
Class AllegroGraphQueryExecutionFactory

java.lang.Object
  com.franz.agjena.query.AllegroGraphQueryExecutionFactory

public class AllegroGraphQueryExecutionFactory
extends java.lang.Object

The static methods in this class are used to make QueryExecution instances for AllegroGraph models. QueryExecution instances created by methods in QueryExecutionFactory will work correctly, but will be very inefficient. Place to make QueryProcessor objects from Query objects or a string.

Method Summary

static QueryExecution	create(Query query) Create a QueryExecution
static QueryExecution	create(java.lang.String queryStr, Syntax syntax) Create a QueryExecution
static QueryExecution	create(java.lang.String queryStr, Syntax syntax, Dataset dataset) Create a QueryExecution to execute over the Dataset.
static QueryExecution	create(java.lang.String queryStr, Syntax syntax, Model model, QuerySolution initialBinding) Create a QueryExecution to execute over the Model, given some initial values of variables.
static Plan	createPlan(AllegroGraphQuery query, DatasetGraph dataset, Binding input, Context context)
static Plan	createPlan(java.lang.String queryStr, Graph graph)
static QueryEngineHTTP	createServiceRequest(java.lang.String service, Query query) Create a service request for remote execution over HTTP.
static QueryExecution	sparqlService(java.lang.String service, java.lang.String query) Create a QueryExecution that will access a SPARQL service over HTTP
static QueryExecution	sparqlService(java.lang.String service, java.lang.String query, java.util.List defaultGraphURIs, java.util.List namedGraphURIs) Create a QueryExecution that will access a SPARQL service over HTTP
static QueryExecution	sparqlService(java.lang.String service, java.lang.String query, java.lang.String defaultGraph) Create a QueryExecution that will access a SPARQL service over HTTP

Methods inherited from class java.lang.Object

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

Method Detail

create

public static QueryExecution create(Query query)

Create a QueryExecution

Parameters:

query - Query

Returns:

QueryExecution

create

public static QueryExecution create(java.lang.String queryStr,
                                    Syntax syntax)

Create a QueryExecution

Parameters:

queryStr - Query string

syntax - Query syntax

Returns:

QueryExecution

create

public static QueryExecution create(java.lang.String queryStr,
                                    Syntax syntax,
                                    Dataset dataset)

Create a QueryExecution to execute over the Dataset.

Parameters:

queryStr - Query string

syntax - Query language

dataset - Target of the query

Returns:

QueryExecution

create

public static QueryExecution create(java.lang.String queryStr,
                                    Syntax syntax,
                                    Model model,
                                    QuerySolution initialBinding)

Create a QueryExecution to execute over the Model, given some initial values of variables.

Parameters:

queryStr - Query string

syntax - Query language

model - Target of the query

initialBinding - Any initial binding of variables

Returns:

QueryExecution

sparqlService

public static QueryExecution sparqlService(java.lang.String service,
                                           java.lang.String query)

Create a QueryExecution that will access a SPARQL service over HTTP

Parameters:

service - URL of the remote service

query - Query string to execute

Returns:

QueryExecution

sparqlService

public static QueryExecution sparqlService(java.lang.String service,
                                           java.lang.String query,
                                           java.lang.String defaultGraph)

Create a QueryExecution that will access a SPARQL service over HTTP

Parameters:

service - URL of the remote service

query - Query string to execute

defaultGraph - URI of the default graph

Returns:

QueryExecution

sparqlService

public static QueryExecution sparqlService(java.lang.String service,
                                           java.lang.String query,
                                           java.util.List defaultGraphURIs,
                                           java.util.List namedGraphURIs)

Create a QueryExecution that will access a SPARQL service over HTTP

Parameters:

service - URL of the remote service

query - Query string to execute

defaultGraphURIs - List of URIs to make up the default graph

namedGraphURIs - List of URIs to make up the named graphs

Returns:

QueryExecution

createServiceRequest

public static QueryEngineHTTP createServiceRequest(java.lang.String service,
                                                   Query query)

Create a service request for remote execution over HTTP. The returned class, QueryEngineHTTP, allows various HTTP specific paramters to be set.

createPlan

public static Plan createPlan(AllegroGraphQuery query,
                              DatasetGraph dataset,
                              Binding input,
                              Context context)

createPlan

public static Plan createPlan(java.lang.String queryStr,
                              Graph graph)