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

Class TriplePatternRequestImpl

java.lang.Object

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

All Implemented Interfaces:

DataRetrievalRequest, SPARQLRequest, TriplePatternRequest

Direct Known Subclasses:

TPFRequestImpl

public class TriplePatternRequestImpl
extends Object
implements TriplePatternRequest

Field Summary

Fields

Modifier and Type	Field	Description
protected final TriplePattern	tp

Constructor Summary

Constructors

Constructor	Description
TriplePatternRequestImpl(TriplePattern tp)

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'.
TriplePattern	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

Methods inherited from interface se.liu.ida.hefquin.engine.federation.access.SPARQLRequest

getQuery

Field Details

tp

protected final TriplePattern tp

Constructor Details

TriplePatternRequestImpl

public TriplePatternRequestImpl(TriplePattern tp)

Method Details

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getQueryPattern

public TriplePattern 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

Specified by:

getQueryPattern in interface TriplePatternRequest

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