com.bigdata.rdf.internal.constraints

Class MathUtility

java.lang.Object

com.bigdata.rdf.internal.constraints.MathUtility

All Implemented Interfaces:

IMathOpHandler

public class MathUtility
extends Object
implements IMathOpHandler

Constructor Summary

Constructors

Constructor and Description
MathUtility()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canInvokeMathOp(org.openrdf.model.Literal... args) Check if this utility applies for the argument types.
static boolean	checkNumericDatatype(org.openrdf.model.Literal... args)
NumericIV	doMathOp(org.openrdf.model.Literal l1, IV iv1, org.openrdf.model.Literal l2, IV iv2, MathBOp.MathOp op, BigdataValueFactory vf) Perform the operation on arguments.
static NumericIV	literalMath(org.openrdf.model.Literal l1, org.openrdf.model.Literal l2, MathBOp.MathOp op)
static NumericIV	numericalFunc(org.openrdf.model.Literal lit, NumericBOp.NumericOp op) The XPath numeric functions: abs, ceiling, floor, and round.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MathUtility

public MathUtility()

Method Detail

checkNumericDatatype

public static boolean checkNumericDatatype(org.openrdf.model.Literal... args)

canInvokeMathOp

public boolean canInvokeMathOp(org.openrdf.model.Literal... args)

Description copied from interface: IMathOpHandler

Check if this utility applies for the argument types.

Specified by:

canInvokeMathOp in interface IMathOpHandler

Returns:

doMathOp

public NumericIV doMathOp(org.openrdf.model.Literal l1,
                 IV iv1,
                 org.openrdf.model.Literal l2,
                 IV iv2,
                 MathBOp.MathOp op,
                 BigdataValueFactory vf)

Description copied from interface: IMathOpHandler

Perform the operation on arguments.

Specified by:

doMathOp in interface IMathOpHandler

Returns:

literalMath

public static NumericIV literalMath(org.openrdf.model.Literal l1,
                    org.openrdf.model.Literal l2,
                    MathBOp.MathOp op)

numericalFunc

public static final NumericIV numericalFunc(org.openrdf.model.Literal lit,
                      NumericBOp.NumericOp op)

The XPath numeric functions: abs, ceiling, floor, and round.

Parameters:

iv1 - The operand.

op - The operation.

Returns:

The result.

See Also:

XPathMathFunctions