Str (Eclipse RDF4J 4.2.4)

java.lang.Object
- org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode
- - org.eclipse.rdf4j.query.algebra.UnaryValueOperator
  - - org.eclipse.rdf4j.query.algebra.Str

All Implemented Interfaces:

Serializable, Cloneable, GraphPatternGroupable, QueryModelNode, ValueExpr, VariableScopeChange
```
public class Str
extends UnaryValueOperator
```
The STR function, as defined in SPARQL Query Language for RDF; returns the label of literals or the string representation of URIs.

Author:

Arjohn Kampman

See Also:

Serialized Form

Field Summary
- Fields inherited from class org.eclipse.rdf4j.query.algebra.UnaryValueOperator
  arg

Constructor Summary

Constructors
Constructor Description

Str()

Str(ValueExpr arg)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Str`	`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.
`int`	`hashCode()`
`<X extends Exception> void`	`visit(QueryModelVisitor<X> visitor)`	Visits this node.

Methods inherited from class org.eclipse.rdf4j.query.algebra.UnaryValueOperator
getArg, replaceChildNode, setArg, visitChildren

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

- Constructor Detail
  - Str
```
public Str()
```
  - Str
```
public Str(ValueExpr arg)
```
- Method Detail
  - 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.
    
    Throws:
    
    X extends Exception
  - 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 UnaryValueOperator
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class UnaryValueOperator
  - clone
```
public Str 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 ValueExpr
    
    Overrides:
    
    clone in class UnaryValueOperator
    
    Returns:
    
    A deep clone of this query model node.