TripleRef (Eclipse RDF4J 3.2.0 API)

java.lang.Object
- org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
- - org.eclipse.rdf4j.query.algebra.TripleRef

All Implemented Interfaces:

Serializable, Cloneable, GraphPatternGroupable, QueryModelNode, TupleExpr, VariableScopeChange
```
public class TripleRef
extends AbstractQueryModelNode
implements TupleExpr
```
Triple lookup reference. Allow retrieval of RDF* triples

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description

TripleRef()

Constructors
Constructor and Description
`TripleRef()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`TripleRef`	`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`	`getExprVar()` Returns the context variable, if available.
`Var`	`getObjectVar()`
`Var`	`getPredicateVar()`
`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>> L`	`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`	`setExprVar(Var context)`
`void`	`setObjectVar(Var object)`
`void`	`setPredicateVar(Var predicate)`
`void`	`setSubjectVar(Var subject)`
`<X extends Exception> void`	`visit(QueryModelVisitor<X> visitor)` Visits this node.
`<X extends Exception> void`	`visitChildren(QueryModelVisitor<X> visitor)` Dummy implementation of `QueryModelNode.visitChildren(org.eclipse.rdf4j.query.algebra.QueryModelVisitor<X>)` that does nothing.

Methods inherited from class org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, isGraphPatternGroup, isVariableScopeChange, nullEquals, replaceNodeInList, replaceWith, setCostEstimate, setGraphPatternGroup, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, setVariableScopeChange, toString

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.rdf4j.query.algebra.QueryModelNode
getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getTotalTimeNanosActual, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString

- Constructor Detail
  - TripleRef
```
public TripleRef()
```
- Method Detail
  - getSubjectVar
```
public Var getSubjectVar()
```
  - setSubjectVar
```
public void setSubjectVar(Var subject)
```
  - getPredicateVar
```
public Var getPredicateVar()
```
  - setPredicateVar
```
public void setPredicateVar(Var predicate)
```
  - getObjectVar
```
public Var getObjectVar()
```
  - setObjectVar
```
public void setObjectVar(Var object)
```
  - getExprVar
```
public Var getExprVar()
```
    Returns the context variable, if available.
  - setExprVar
```
public void setExprVar(Var context)
```
  - getBindingNames
```
public Set<String> getBindingNames()
```
    Description copied from interface: TupleExpr
    
    Gets the names of the bindings that are, or can be, returned by this tuple expression when it is evaluated.
    
    Specified by:
    
    getBindingNames in interface TupleExpr
    
    Returns:
    
    A set of binding names.
  - getAssuredBindingNames
```
public Set<String> getAssuredBindingNames()
```
    Description copied from interface: TupleExpr
    
    Gets the names of the bindings that are guaranteed to be present in the results produced by this tuple expression.
    
    Specified by:
    
    getAssuredBindingNames in interface TupleExpr
    
    Returns:
    
    A set of binding names.
  - getVarList
```
public List<Var> getVarList()
```
  - getVars
```
public <L extends Collection<Var>> L getVars(L varCollection)
```
    Adds the variables of this statement pattern to the supplied collection.
  - visit
```
public <X extends Exception> void visit(QueryModelVisitor<X> visitor)
                                 throws X extends Exception
```
    Description copied from interface: QueryModelNode
    
    Visits this node. The node reports itself to the visitor with the proper runtime type.
    
    Specified by:
    
    visit in interface QueryModelNode
    
    Throws:
    
    X extends Exception
  - visitChildren
```
public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor)
                                         throws X extends Exception
```
    Description copied from class: AbstractQueryModelNode
    
    Dummy implementation of QueryModelNode.visitChildren(org.eclipse.rdf4j.query.algebra.QueryModelVisitor<X>) that does nothing. Subclasses should override this method when they have child nodes.
    
    Specified by:
    
    visitChildren in interface QueryModelNode
    
    Overrides:
    
    visitChildren in class AbstractQueryModelNode
    
    Throws:
    
    X extends Exception
  - replaceChildNode
```
public void replaceChildNode(QueryModelNode current,
                             QueryModelNode replacement)
```
    Description copied from class: AbstractQueryModelNode
    
    Default implementation of QueryModelNode.replaceChildNode(QueryModelNode, QueryModelNode) that throws an IllegalArgumentException indicating that current is not a child node of this node.
    
    Specified by:
    
    replaceChildNode in interface QueryModelNode
    
    Overrides:
    
    replaceChildNode in class AbstractQueryModelNode
    
    Parameters:
    
    current - The current child node.
    
    replacement - The new child node.
  - getSignature
```
public String getSignature()
```
    Description copied from class: AbstractQueryModelNode
    
    Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.
    
    Specified by:
    
    getSignature in interface QueryModelNode
    
    Overrides:
    
    getSignature in class AbstractQueryModelNode
    
    Returns:
    
    The node's signature, e.g. SLICE (offset=10, limit=10).
  - equals
```
public boolean equals(Object other)
```
    Description copied from interface: QueryModelNode
    
    Returns true if this query model node and its children are recursively equal to o and its children.
    
    Specified by:
    
    equals in interface QueryModelNode
    
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - clone
```
public TripleRef clone()
```
    Description copied from interface: QueryModelNode
    
    Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.
    
    Specified by:
    
    clone in interface QueryModelNode
    
    Specified by:
    
    clone in interface TupleExpr
    
    Overrides:
    
    clone in class AbstractQueryModelNode
    
    Returns:
    
    A deep clone of this query model node.

Class TripleRef

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode

Methods inherited from class java.lang.Object

Methods inherited from interface org.eclipse.rdf4j.query.algebra.QueryModelNode

Constructor Detail

TripleRef

Method Detail

getSubjectVar

setSubjectVar

getPredicateVar

setPredicateVar

getObjectVar

setObjectVar

getExprVar

setExprVar

getBindingNames

getAssuredBindingNames

getVarList

getVars

visit

visitChildren

replaceChildNode

getSignature

equals

hashCode

clone