org.openrdf.sesame.sail.query
Class MathExpr

java.lang.Object
  org.openrdf.sesame.sail.query.MathExpr

All Implemented Interfaces:

StringExpr, ValueExpr

public class MathExpr

extends Object

implements ValueExpr

A mathematical expression consisting an operator and two arguments.

Field Summary

static int	DIVIDE The division (/) operator.
static int	MULTIPLY The multiplication (*) operator.
static int	PLUS The plus (+) operator.
static int	REMAINDER The remainder (%) operator.
static int	SUBTRACT The subtraction (-) operator.

Constructor Summary

MathExpr(ValueExpr leftArg, ValueExpr rightArg, int op)

Method Summary

ValueExpr	getLeftArg()
int	getOperator()
ValueExpr	getRightArg()
String	getString() Gets the String value for this expression.
Value	getValue() Gets the value of this expression.
static Literal	getValue(Literal leftLit, Literal rightLit, int op)
void	getVariables(Collection variables) Gets all variables that are used in this StringExpr.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

PLUS

public static final int PLUS

The plus (+) operator.

See Also:

Constant Field Values

SUBTRACT

public static final int SUBTRACT

The subtraction (-) operator.

See Also:

Constant Field Values

MULTIPLY

public static final int MULTIPLY

The multiplication (*) operator.

See Also:

Constant Field Values

DIVIDE

public static final int DIVIDE

The division (/) operator.

See Also:

Constant Field Values

REMAINDER

public static final int REMAINDER

The remainder (%) operator.

See Also:

Constant Field Values

Constructor Detail

MathExpr

public MathExpr(ValueExpr leftArg,
                ValueExpr rightArg,
                int op)

Method Detail

getLeftArg

public ValueExpr getLeftArg()

getRightArg

public ValueExpr getRightArg()

getOperator

public int getOperator()

getVariables

public void getVariables(Collection variables)

Description copied from interface: StringExpr

Gets all variables that are used in this StringExpr.

Specified by:

getVariables in interface StringExpr

Parameters:

variables - a Collection to add relevant Var objects to.

getString

public String getString()

Description copied from interface: StringExpr

Gets the String value for this expression.

Specified by:

getString in interface StringExpr

getValue

public Value getValue()

Description copied from interface: ValueExpr

Gets the value of this expression.

Specified by:

getValue in interface ValueExpr

getValue

public static Literal getValue(Literal leftLit,
                               Literal rightLit,
                               int op)

toString

public String toString()