TupleExpr (Eclipse RDF4J 4.3.2)

All Superinterfaces:

Cloneable, QueryModelNode, Serializable

All Known Subinterfaces:

ExclusiveTupleExpr, ExclusiveTupleExprRenderer, FedXTupleExpr, StatementTupleExpr

All Known Implementing Classes:

ArbitraryLengthPath, BinaryTupleOperator, BindingSetAssignment, CheckStatementPattern, DescribeOperator, Difference, Distinct, EmptyNJoin, EmptyNUnion, EmptySet, EmptyStatementPattern, ExclusiveArbitraryLengthPath, ExclusiveGroup, ExclusiveStatement, Extension, FederatedDescribeOperator, FedXLeftJoin, FedXService, FedXStatementPattern, Filter, Group, Intersection, Join, LeftJoin, MultiProjection, NJoin, NTuple, NUnion, Order, PassThroughTupleExpr, PrecompiledQueryNode, Projection, QueryRoot, Reduced, Service, SingleSourceQuery, SingletonSet, Slice, StatementPattern, StatementSourcePattern, TripleRef, TrueStatementPattern, TupleFunctionCall, UnaryTupleOperator, Union, ZeroLengthPath
```
public interface TupleExpr
extends QueryModelNode
```
An expression that evaluates to RDF tuples.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`TupleExpr`	`clone()`	Returns a (deep) clone of this query model node.
`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.

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

- Method Detail
  - getBindingNames
```
Set<String> getBindingNames()
```
    Gets the names of the bindings that are, or can be, returned by this tuple expression when it is evaluated.
    
    Returns:
    
    A set of binding names.
  - getAssuredBindingNames
```
Set<String> getAssuredBindingNames()
```
    Gets the names of the bindings that are guaranteed to be present in the results produced by this tuple expression.
    
    Returns:
    
    A set of binding names.
  - clone
```
TupleExpr 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
    
    Returns:
    
    A deep clone of this query model node.