Class IrStatementPattern

java.lang.Object

org.eclipse.rdf4j.queryrender.sparql.ir.IrNode

org.eclipse.rdf4j.queryrender.sparql.ir.IrTripleLike

org.eclipse.rdf4j.queryrender.sparql.ir.IrStatementPattern

public class IrStatementPattern
extends IrTripleLike

Textual IR node for a simple triple pattern line.

Field Summary

Fields inherited from class IrNode

_className

Constructor Summary

Constructors

Constructor	Description
IrStatementPattern(Var subject, Var predicate, Var object, boolean newScope)

Method Summary

Modifier and Type	Method	Description
Var	getPredicate()
String	getPredicateOrPathText(TupleExprIRRenderer r)	Render the predicate or path as compact textual IR suitable for inclusion in a property path.
Set<Var>	getVars()	Collect variables referenced by this node and all of its children (if any).
void	print(IrPrinter p)	Default no-op printing; concrete nodes override.
String	toString()

Methods inherited from class IrTripleLike

getObject, getObjectOverride, getSubject, getSubjectOverride, setObjectOverride, setSubjectOverride

Methods inherited from class IrNode

isNewScope, setNewScope, transformChildren

Methods inherited from class Object

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

Constructor Details

IrStatementPattern

public IrStatementPattern(Var subject,
 Var predicate,
 Var object,
 boolean newScope)

Method Details

getPredicate

public Var getPredicate()

getPredicateOrPathText

public String getPredicateOrPathText(TupleExprIRRenderer r)

Description copied from class: IrTripleLike

Render the predicate or path as compact textual IR suitable for inclusion in a property path. For simple statement patterns this typically returns a compact IRI (possibly prefixed); for path triples it returns the already-rendered path text. Implementations should return null when no safe textual representation exists (e.g., non-constant predicate in a statement pattern).

Specified by:

getPredicateOrPathText in class IrTripleLike

print

public void print(IrPrinter p)

Description copied from class: IrNode

Default no-op printing; concrete nodes override.

Specified by:

print in class IrNode

toString

public String toString()

Overrides:

toString in class Object

getVars

public Set<Var> getVars()

Description copied from class: IrNode

Collect variables referenced by this node and all of its children (if any). Default implementation returns an empty set; container and triple-like nodes override to include their own Vars and recurse into child nodes.

Overrides:

getVars in class IrTripleLike