Package org.eclipse.rdf4j.query.algebra

Class MathExpr

java.lang.Object

org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode

org.eclipse.rdf4j.query.algebra.BinaryValueOperator

org.eclipse.rdf4j.query.algebra.MathExpr

All Implemented Interfaces:

Serializable, Cloneable, QueryModelNode, ValueExpr, VariableScopeChange

public class MathExpr
extends BinaryValueOperator

A mathematical expression consisting an operator and two arguments.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	MathExpr.MathOp

Field Summary

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

leftArg, rightArg

Constructor Summary

Constructors

Constructor	Description
MathExpr()
MathExpr(ValueExpr leftArg, ValueExpr rightArg, MathExpr.MathOp operator)

Method Summary

Modifier and Type	Method	Description
MathExpr	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.
MathExpr.MathOp	getOperator()
String	getSignature()	Default implementation of QueryModelNode.getSignature() that prints the name of the node's class.
int	hashCode()
void	setOperator(MathExpr.MathOp operator)
<X extends Exception> void	visit(QueryModelVisitor<X> visitor)	Visits this node.

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

getLeftArg, getRightArg, replaceChildNode, setLeftArg, setRightArg, visitChildren

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

getCardinality, getCostEstimate, getParentNode, getResultSizeActual, getResultSizeEstimate, 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, getTotalTimeNanosActual, replaceWith, setCostEstimate, setParentNode, setResultSizeActual, setResultSizeEstimate, setTotalTimeNanosActual, toString

Constructor Details

MathExpr

public MathExpr()

MathExpr

public MathExpr(ValueExpr leftArg,
 ValueExpr rightArg,
 MathExpr.MathOp operator)

Method Details

getOperator

public MathExpr.MathOp getOperator()

setOperator

public void setOperator(MathExpr.MathOp operator)

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

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 BinaryValueOperator

hashCode

public int hashCode()

Overrides:

hashCode in class BinaryValueOperator

clone

public MathExpr 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 BinaryValueOperator

Returns:

A deep clone of this query model node.