Package org.apache.jena.sparql.engine

Class QueryEngineFactoryWrapper

java.lang.Object

org.apache.jena.sparql.engine.QueryEngineFactoryWrapper

All Implemented Interfaces:

QueryEngineFactory

public class QueryEngineFactoryWrapper
extends java.lang.Object
implements QueryEngineFactory

Default processing for a DatasetGraphWrapper - unwrap and repeat

Constructor Summary

Constructors

Constructor	Description
QueryEngineFactoryWrapper()

Method Summary

Modifier and Type	Method	Description
boolean	accept(Query query, DatasetGraph dsg, Context context)	Detect appropriate requests for a particular query engine for a particular graph type.
boolean	accept(Op op, DatasetGraph dsg, Context context)	Detect appropriate requests for a particular query engine for a particular graph type.
Plan	create(Query query, DatasetGraph dsg, Binding inputBinding, Context context)	Call to create a Plan : the companion QueryEngineFactory.accept(org.apache.jena.query.Query, org.apache.jena.sparql.core.DatasetGraph, org.apache.jena.sparql.util.Context) will have returned true.
Plan	create(Op op, DatasetGraph dsg, Binding inputBinding, Context context)	Call to create a Plan : the companion QueryEngineFactory.accept(org.apache.jena.query.Query, org.apache.jena.sparql.core.DatasetGraph, org.apache.jena.sparql.util.Context) will have returned true.
static QueryEngineFactory	get()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryEngineFactoryWrapper

public QueryEngineFactoryWrapper()

Method Detail

get

public static QueryEngineFactory get()

accept

public boolean accept(Query query,
                      DatasetGraph dsg,
                      Context context)

Description copied from interface: QueryEngineFactory

Detect appropriate requests for a particular query engine for a particular graph type.

Specified by:

accept in interface QueryEngineFactory

Parameters:

query - a Query to be executed

dsg - the DatasetGraph over which the query is to be executed

context - the Context in which the query is to be executed

Returns:

whether the kind of query engine produced by this factory can handle this task

create

public Plan create(Query query,
                   DatasetGraph dsg,
                   Binding inputBinding,
                   Context context)

Description copied from interface: QueryEngineFactory

Call to create a Plan : the companion QueryEngineFactory.accept(org.apache.jena.query.Query, org.apache.jena.sparql.core.DatasetGraph, org.apache.jena.sparql.util.Context) will have returned true.

Specified by:

create in interface QueryEngineFactory

accept

public boolean accept(Op op,
                      DatasetGraph dsg,
                      Context context)

Description copied from interface: QueryEngineFactory

Detect appropriate requests for a particular query engine for a particular graph type.

Specified by:

accept in interface QueryEngineFactory

Parameters:

op - an Op to be executed

dsg - the DatasetGraph over which the operation is to be executed

context - the Context in which the operation is to be executed

Returns:

whether the kind of query engine produced by this factory can handle this task

create

public Plan create(Op op,
                   DatasetGraph dsg,
                   Binding inputBinding,
                   Context context)

Description copied from interface: QueryEngineFactory

Call to create a Plan : the companion QueryEngineFactory.accept(org.apache.jena.query.Query, org.apache.jena.sparql.core.DatasetGraph, org.apache.jena.sparql.util.Context) will have returned true.

Specified by:

create in interface QueryEngineFactory