Package org.eclipse.rdf4j.query.algebra

Class Order

java.lang.Object

org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode

org.eclipse.rdf4j.query.algebra.UnaryTupleOperator

org.eclipse.rdf4j.query.algebra.Order

All Implemented Interfaces:

Serializable, Cloneable, QueryModelNode, TupleExpr, VariableScopeChange

public class Order
extends UnaryTupleOperator

An order operator that can be used to order bindings as specified by a set of value expressions.

Author:

Arjohn Kampman

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.eclipse.rdf4j.query.algebra.UnaryTupleOperator

arg

Constructor Summary

Constructors

Constructor	Description
Order()
Order(TupleExpr arg)
Order(TupleExpr arg, Iterable<OrderElem> elements)
Order(TupleExpr arg, OrderElem... elements)

Method Summary

Modifier and Type	Method	Description
void	addElement(OrderElem pe)
void	addElements(Iterable<OrderElem> elements)
void	addElements(OrderElem... elements)
Order	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.
List<OrderElem>	getElements()
int	hashCode()
void	replaceChildNode(QueryModelNode current, QueryModelNode replacement)	Replaces one of the child nodes with a new node.
void	setElements(List<OrderElem> elements)
<X extends Exception> void	visit(QueryModelVisitor<X> visitor)	Visits this node.
<X extends Exception> void	visitChildren(QueryModelVisitor<X> visitor)	Visits the children of this node.

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

getArg, getAssuredBindingNames, getBindingNames, getOrder, getSupportedOrders, setArg, setOrder

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

getCardinality, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, getSignature, getTotalTimeNanosActual, isCardinalitySet, isVariableScopeChange, nullEquals, replaceNodeInList, replaceWith, resetCardinality, setCardinality, setCostEstimate, 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 Details

Order

public Order()

Order

public Order(TupleExpr arg)

Order

public Order(TupleExpr arg,
 OrderElem... elements)

Order

public Order(TupleExpr arg,
 Iterable<OrderElem> elements)

Method Details

getElements

public List<OrderElem> getElements()

setElements

public void setElements(List<OrderElem> elements)

addElements

public void addElements(OrderElem... elements)

addElements

public void addElements(Iterable<OrderElem> elements)

addElement

public void addElement(OrderElem pe)

visit

public <X extends Exception> void visit(QueryModelVisitor<X> visitor)
                                 throws X

Description copied from interface: QueryModelNode

Visits this node. The node reports itself to the visitor with the proper runtime type.

Throws:

X

visitChildren

public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor)
                                         throws X

Description copied from interface: QueryModelNode

Visits the children of this node. The node calls QueryModelNode.visit(QueryModelVisitor) on all of its child nodes.

Specified by:

visitChildren in interface QueryModelNode

Overrides:

visitChildren in class UnaryTupleOperator

Throws:

X

replaceChildNode

public void replaceChildNode(QueryModelNode current,
 QueryModelNode replacement)

Description copied from interface: QueryModelNode

Replaces one of the child nodes with a new node.

Specified by:

replaceChildNode in interface QueryModelNode

Overrides:

replaceChildNode in class UnaryTupleOperator

Parameters:

current - The current child node.

replacement - The new child node.

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 UnaryTupleOperator

hashCode

public int hashCode()

Overrides:

hashCode in class UnaryTupleOperator

clone

public Order 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 UnaryTupleOperator

Returns:

A deep clone of this query model node.