org.apache.fop.fo.expr

Class NumericOp

java.lang.Object

org.apache.fop.fo.expr.NumericOp

public class NumericOp
extends java.lang.Object

This class contains static methods to evaluate operations on Numeric operands. If the operands are absolute numerics the result is computed rigth away and a new absolute numeric is return. If one of the operands are relative a n operation node is created with the operation and the operands. The evaluation of the operation can then occur when getNumericValue() is called.

Constructor Summary

Constructors

Constructor and Description
NumericOp()

Method Summary

Methods

Modifier and Type	Method and Description
static Numeric	abs(Numeric op) Return the absolute value of a Numeric.
static Numeric	abs2(Numeric op, PercentBaseContext context)
static Numeric	addition(Numeric op1, Numeric op2) Add the two operands and return a new Numeric representing the result.
static Numeric	addition2(Numeric op1, Numeric op2, PercentBaseContext context)
static Numeric	divide(Numeric op1, Numeric op2) Divide the second operand into the first and return a new Numeric representing the result.
static Numeric	divide2(Numeric op1, Numeric op2, PercentBaseContext context)
static Numeric	max(Numeric op1, Numeric op2) Return the larger of the two Numerics.
static Numeric	max2(Numeric op1, Numeric op2, PercentBaseContext context)
static Numeric	min(Numeric op1, Numeric op2) Return the smaller of two Numerics.
static Numeric	min2(Numeric op1, Numeric op2, PercentBaseContext context)
static Numeric	modulo(Numeric op1, Numeric op2) Return the remainder of a division of the two operand Numeric.
static Numeric	modulo2(Numeric op1, Numeric op2, PercentBaseContext context)
static Numeric	multiply(Numeric op1, Numeric op2) Multiply the two operands and return a new Numeric representing the result.
static Numeric	multiply2(Numeric op1, Numeric op2, PercentBaseContext context)
static Numeric	negate(Numeric op) Return the negation of a Numeric.
static Numeric	negate2(Numeric op, PercentBaseContext context)
static Numeric	subtraction(Numeric op1, Numeric op2) Add the second operand from the first and return a new Numeric representing the result.
static Numeric	subtraction2(Numeric op1, Numeric op2, PercentBaseContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

NumericOp

public NumericOp()

Method Detail

addition

public static Numeric addition(Numeric op1,
               Numeric op2)
                        throws PropertyException

Add the two operands and return a new Numeric representing the result.

Parameters:

op1 - The first operand.

op2 - The second operand.

Returns:

A Numeric representing the result.

Throws:

PropertyException - If the dimension of the operand is different from the dimension of this Numeric.

addition2

public static Numeric addition2(Numeric op1,
                Numeric op2,
                PercentBaseContext context)
                         throws PropertyException

Throws:

PropertyException

subtraction

public static Numeric subtraction(Numeric op1,
                  Numeric op2)
                           throws PropertyException

Add the second operand from the first and return a new Numeric representing the result.

Parameters:

op1 - The first operand.

op2 - The second operand.

Returns:

A Numeric representing the result.

Throws:

PropertyException - If the dimension of the operand is different from the dimension of this Numeric.

subtraction2

public static Numeric subtraction2(Numeric op1,
                   Numeric op2,
                   PercentBaseContext context)
                            throws PropertyException

Throws:

PropertyException

multiply

public static Numeric multiply(Numeric op1,
               Numeric op2)
                        throws PropertyException

Multiply the two operands and return a new Numeric representing the result.

Parameters:

op1 - The first operand.

op2 - The second operand.

Returns:

A Numeric representing the result.

Throws:

PropertyException - If the dimension of the operand is different from the dimension of this Numeric.

multiply2

public static Numeric multiply2(Numeric op1,
                Numeric op2,
                PercentBaseContext context)
                         throws PropertyException

Throws:

PropertyException

divide

public static Numeric divide(Numeric op1,
             Numeric op2)
                      throws PropertyException

Divide the second operand into the first and return a new Numeric representing the result.

Parameters:

op1 - The first operand.

op2 - The second operand.

Returns:

A Numeric representing the result.

Throws:

PropertyException - If the dimension of the operand is different from the dimension of this Numeric.

divide2

public static Numeric divide2(Numeric op1,
              Numeric op2,
              PercentBaseContext context)
                       throws PropertyException

Throws:

PropertyException

modulo

public static Numeric modulo(Numeric op1,
             Numeric op2)
                      throws PropertyException

Return the remainder of a division of the two operand Numeric.

Parameters:

op1 - The first operand.

op2 - The second operand.

Returns:

A new Numeric object representing the absolute value.

Throws:

PropertyException

modulo2

public static Numeric modulo2(Numeric op1,
              Numeric op2,
              PercentBaseContext context)
                       throws PropertyException

Throws:

PropertyException

abs

public static Numeric abs(Numeric op)
                   throws PropertyException

Return the absolute value of a Numeric.

Parameters:

op - the operand.

Returns:

a new Numeric object representing the absolute value of the operand.

Throws:

PropertyException

abs2

public static Numeric abs2(Numeric op,
           PercentBaseContext context)
                    throws PropertyException

Throws:

PropertyException

negate

public static Numeric negate(Numeric op)
                      throws PropertyException

Return the negation of a Numeric.

Parameters:

op - the operand.

Returns:

a new Numeric object representing the negation of the operand.

Throws:

PropertyException

negate2

public static Numeric negate2(Numeric op,
              PercentBaseContext context)
                       throws PropertyException

Throws:

PropertyException

max

public static Numeric max(Numeric op1,
          Numeric op2)
                   throws PropertyException

Return the larger of the two Numerics.

Parameters:

op1 - The first operand.

op2 - The second operand.

Returns:

a Numeric which is the maximum of the two operands.

Throws:

PropertyException - if the dimensions or value types of the operands are different.

max2

public static Numeric max2(Numeric op1,
           Numeric op2,
           PercentBaseContext context)
                    throws PropertyException

Throws:

PropertyException

min

public static Numeric min(Numeric op1,
          Numeric op2)
                   throws PropertyException

Return the smaller of two Numerics.

Parameters:

op1 - The first operand.

op2 - The second operand.

Returns:

a Numeric which is the minimum of the two operands.

Throws:

PropertyException - if the dimensions or value types of the operands are different.

min2

public static Numeric min2(Numeric op1,
           Numeric op2,
           PercentBaseContext context)
                    throws PropertyException

Throws:

PropertyException