Package se.liu.ida.hefquin.engine.federation.access.impl.req

Class SPARQLRequestImpl

java.lang.Object

se.liu.ida.hefquin.engine.federation.access.impl.req.SPARQLRequestImpl

All Implemented Interfaces:

DataRetrievalRequest, SPARQLRequest

public class SPARQLRequestImpl
extends Object
implements SPARQLRequest

Field Summary

Fields

Modifier and Type	Field	Description
protected final ExpectedVariables	expectedVars
protected final SPARQLGraphPattern	pattern
protected final SPARQLQuery	query

Constructor Summary

Constructors

Constructor	Description
SPARQLRequestImpl(SPARQLGraphPattern pattern)
SPARQLRequestImpl(SPARQLQuery query)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
ExpectedVariables	getExpectedVariables()	Returns the query variables for which this data retrieval request aims to fetch data (if any), where some of these variables may be 'certain variables' whereas others are 'possible variables'.
SPARQLQuery	getQuery()	Returns the SPARQL query for which solutions should be requested.
SPARQLGraphPattern	getQueryPattern()	Returns the graph pattern for which solutions should be requested, or null if this request is based on an actual SPARQL query (to be accessed via the method SPARQLRequest.getQuery().
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

pattern

protected final SPARQLGraphPattern pattern

query

protected final SPARQLQuery query

expectedVars

protected final ExpectedVariables expectedVars

Constructor Details

SPARQLRequestImpl

public SPARQLRequestImpl(SPARQLGraphPattern pattern)

SPARQLRequestImpl

public SPARQLRequestImpl(SPARQLQuery query)

Method Details

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getQueryPattern

public SPARQLGraphPattern getQueryPattern()

Description copied from interface: SPARQLRequest

Returns the graph pattern for which solutions should be requested, or null if this request is based on an actual SPARQL query (to be accessed via the method SPARQLRequest.getQuery().

Specified by:

getQueryPattern in interface SPARQLRequest

getQuery

public SPARQLQuery getQuery()

Description copied from interface: SPARQLRequest

Returns the SPARQL query for which solutions should be requested.

Specified by:

getQuery in interface SPARQLRequest

getExpectedVariables

public ExpectedVariables getExpectedVariables()

Description copied from interface: DataRetrievalRequest

Returns the query variables for which this data retrieval request aims to fetch data (if any), where some of these variables may be 'certain variables' whereas others are 'possible variables'. For the distinction between these two types of variables, refer to ExpectedVariables.getCertainVariables() and to {@link ExpectedVariables#getPossibleVariables())}. For instance, if this request is about fetching triples that match a given triple pattern, then the variables of that triple pattern would be returned here as certain variables. Note that the method may also return null (which would be the case for types of data retrieval requests for which this method is not applicable in any reasonable way).

Specified by:

getExpectedVariables in interface DataRetrievalRequest

toString

public String toString()

Specified by:

toString in interface DataRetrievalRequest

Overrides:

toString in class Object