public class ZeroLengthPath extends AbstractQueryModelNode implements TupleExpr
| Constructor and Description |
|---|
ZeroLengthPath() |
ZeroLengthPath(StatementPattern.Scope scope,
Var subject,
Var object)
Creates a zero-length path that matches a subject-, predicate- and object variable against statements from the
specified context scope.
|
ZeroLengthPath(StatementPattern.Scope scope,
Var subjVar,
Var objVar,
Var conVar)
Creates a zero-length path that matches a subject-, predicate-, object- and context variable against statements
from the specified context scope.
|
ZeroLengthPath(Var subject,
Var object)
Creates a zero-length path that matches a subject-, predicate- and object variable against statements from all
contexts.
|
ZeroLengthPath(Var subject,
Var object,
Var context)
Creates a zero-length path that matches a subject-, predicate-, object- and context variable against statements
from all contexts.
|
| Modifier and Type | Method and Description |
|---|---|
ZeroLengthPath |
clone()
Returns a (deep) clone of this query model node.
|
boolean |
equals(Object other)
Returns true if this query model node and its children are recursively equal to o and its
children.
|
Set<String> |
getAssuredBindingNames()
Gets the names of the bindings that are guaranteed to be present in the results produced by this tuple
expression.
|
Set<String> |
getBindingNames()
Gets the names of the bindings that are, or can be, returned by this tuple expression when it is evaluated.
|
Var |
getContextVar()
Returns the context variable, if available.
|
Var |
getObjectVar() |
StatementPattern.Scope |
getScope()
Gets the context scope for the zero-length path.
|
String |
getSignature()
Default implementation of
QueryModelNode.getSignature() that prints the name of the node's class. |
Var |
getSubjectVar() |
List<Var> |
getVarList() |
<L extends Collection<Var>> |
getVars(L varCollection)
Adds the variables of this statement pattern to the supplied collection.
|
int |
hashCode() |
void |
replaceChildNode(QueryModelNode current,
QueryModelNode replacement)
Default implementation of
QueryModelNode.replaceChildNode(QueryModelNode, QueryModelNode) that throws an
IllegalArgumentException indicating that current is not a child node of this node. |
void |
setContextVar(Var context) |
void |
setObjectVar(Var object) |
void |
setScope(StatementPattern.Scope scope)
Sets the context scope for the zero-length path
|
void |
setSubjectVar(Var subject) |
<X extends Exception> |
visit(QueryModelVisitor<X> visitor)
Visits this node.
|
<X extends Exception> |
visitChildren(QueryModelVisitor<X> visitor)
Dummy implementation of
QueryModelNode.visitChildren(org.eclipse.rdf4j.query.algebra.QueryModelVisitor<X>) that does nothing. |
getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, isGraphPatternGroup, isVariableScopeChange, nullEquals, replaceNodeInList, replaceWith, setCostEstimate, setGraphPatternGroup, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, toStringfinalize, getClass, notify, notifyAll, wait, wait, waitgetCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toStringpublic ZeroLengthPath()
public ZeroLengthPath(Var subject, Var object)
public ZeroLengthPath(StatementPattern.Scope scope, Var subject, Var object)
public ZeroLengthPath(Var subject, Var object, Var context)
public ZeroLengthPath(StatementPattern.Scope scope, Var subjVar, Var objVar, Var conVar)
public StatementPattern.Scope getScope()
public void setScope(StatementPattern.Scope scope)
public Var getSubjectVar()
public void setSubjectVar(Var subject)
public Var getObjectVar()
public void setObjectVar(Var object)
public Var getContextVar()
public void setContextVar(Var context)
public Set<String> getBindingNames()
TupleExprgetBindingNames in interface TupleExprpublic Set<String> getAssuredBindingNames()
TupleExprgetAssuredBindingNames in interface TupleExprpublic <L extends Collection<Var>> L getVars(L varCollection)
public <X extends Exception> void visit(QueryModelVisitor<X> visitor) throws X extends Exception
QueryModelNodevisit in interface QueryModelNodeX extends Exceptionpublic <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor) throws X extends Exception
AbstractQueryModelNodeQueryModelNode.visitChildren(org.eclipse.rdf4j.query.algebra.QueryModelVisitor<X>) that does nothing. Subclasses should override this
method when they have child nodes.visitChildren in interface QueryModelNodevisitChildren in class AbstractQueryModelNodeX extends Exceptionpublic void replaceChildNode(QueryModelNode current, QueryModelNode replacement)
AbstractQueryModelNodeQueryModelNode.replaceChildNode(QueryModelNode, QueryModelNode) that throws an
IllegalArgumentException indicating that current is not a child node of this node.replaceChildNode in interface QueryModelNodereplaceChildNode in class AbstractQueryModelNodecurrent - The current child node.replacement - The new child node.public String getSignature()
AbstractQueryModelNodeQueryModelNode.getSignature() that prints the name of the node's class.getSignature in interface QueryModelNodegetSignature in class AbstractQueryModelNodepublic boolean equals(Object other)
QueryModelNodeequals in interface QueryModelNodeequals in class Objectpublic ZeroLengthPath clone()
QueryModelNodeclone in interface QueryModelNodeclone in interface TupleExprclone in class AbstractQueryModelNodeCopyright © 2015-2022 Eclipse Foundation. All Rights Reserved.