java.lang.Object
- org.apache.fop.fo.properties.Property
- - org.apache.fop.fo.expr.RelativeNumericProperty

All Implemented Interfaces:

Length, Numeric
```
public class RelativeNumericProperty
extends Property
implements Length
```
This class represent a node in a property expression tree. It is created when an operation involve relative expression and is used to delay evaluation of the operation until the time where getNumericValue() or getValue() is called.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`ABS`	ABS
`static int`	`ADDITION`	ADDITION
`static int`	`DIVIDE`	DIVIDE
`static int`	`MAX`	MAX
`static int`	`MIN`	MIN
`static int`	`MODULO`	MODULO
`static int`	`MULTIPLY`	MULTIPLY
`static int`	`NEGATE`	NEGATE
`static int`	`SUBTRACTION`	SUBTRACTION

Fields inherited from class org.apache.fop.fo.properties.Property
log

Constructor Summary

Constructors
Constructor	Description
`RelativeNumericProperty(int operation, Numeric op)`	Constructor for a one argument operation.
`RelativeNumericProperty(int operation, Numeric op1, Numeric op2)`	Constructor for a two argument operation.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object obj)`
`int`	`getDimension()`	Return the dimension of the expression
`Length`	`getLength()`	Cast this numeric as a Length.
`Numeric`	`getNumeric()`	This method expects to be overridden by subclasses
`double`	`getNumericValue()`	Return the resolved (calculated) value of the expression.
`double`	`getNumericValue(PercentBaseContext context)`	Return the value of this Numeric
`double`	`getTableUnits()`	Return the number of table units which are included in this length specification.
`int`	`getValue()`	Returns the length in 1/1000ths of a point (millipoints)
`int`	`getValue(PercentBaseContext context)`	Returns the length in 1/1000ths of a point (millipoints)
`int`	`hashCode()`
`boolean`	`isAbsolute()`	Return false since an expression is only created when there is relative numerics involved.
`java.lang.String`	`toString()`	Return a string represention of the expression.

Methods inherited from class org.apache.fop.fo.properties.Property
getCharacter, getColor, getCondLength, getEnum, getKeep, getLengthPair, getLengthRange, getList, getNCname, getNumber, getObject, getSpace, getSpecifiedValue, getString, isAuto, setSpecifiedValue

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.fop.datatypes.Numeric
getEnum

- Field Detail
  - ADDITION
```
public static final int ADDITION
```
    ADDITION
    
    See Also:
    
    Constant Field Values
  - SUBTRACTION
```
public static final int SUBTRACTION
```
    SUBTRACTION
    
    See Also:
    
    Constant Field Values
  - MULTIPLY
```
public static final int MULTIPLY
```
    MULTIPLY
    
    See Also:
    
    Constant Field Values
  - DIVIDE
```
public static final int DIVIDE
```
    DIVIDE
    
    See Also:
    
    Constant Field Values
  - MODULO
```
public static final int MODULO
```
    MODULO
    
    See Also:
    
    Constant Field Values
  - NEGATE
```
public static final int NEGATE
```
    NEGATE
    
    See Also:
    
    Constant Field Values
  - ABS
```
public static final int ABS
```
    ABS
    
    See Also:
    
    Constant Field Values
  - MAX
```
public static final int MAX
```
    MAX
    
    See Also:
    
    Constant Field Values
  - MIN
```
public static final int MIN
```
    MIN
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - RelativeNumericProperty
```
public RelativeNumericProperty(int operation,
                               Numeric op1,
                               Numeric op2)
```
    Constructor for a two argument operation.
    
    Parameters:
    
    operation - the operation opcode: ADDITION, SUBTRACTION, ...
    
    op1 - the first operand.
    
    op2 - the second operand
  - RelativeNumericProperty
```
public RelativeNumericProperty(int operation,
                               Numeric op)
```
    Constructor for a one argument operation.
    
    Parameters:
    
    operation - the operation opcode: NEGATE, ABS
    
    op - the operand.
- Method Detail
  - getNumericValue
```
public double getNumericValue()
```
    Return the resolved (calculated) value of the expression. Return the value of this Numeric
    
    Specified by:
    
    getNumericValue in interface Numeric
    
    Returns:
    
    the computed value.
  - getNumericValue
```
public double getNumericValue(PercentBaseContext context)
```
    Return the value of this Numeric
    
    Specified by:
    
    getNumericValue in interface Numeric
    
    Parameters:
    
    context - The context for the length calculation (for percentage based lengths)
    
    Returns:
    
    the computed value.
  - getDimension
```
public int getDimension()
```
    Return the dimension of the expression
    
    Specified by:
    
    getDimension in interface Numeric
    
    Returns:
    
    numeric value as dimension
  - isAbsolute
```
public boolean isAbsolute()
```
    Return false since an expression is only created when there is relative numerics involved.
    
    Specified by:
    
    isAbsolute in interface Numeric
    
    Returns:
    
    true if expression is absolute
  - getLength
```
public Length getLength()
```
    Cast this numeric as a Length.
    
    Overrides:
    
    getLength in class Property
    
    Returns:
    
    numeric value as length
  - getNumeric
```
public Numeric getNumeric()
```
    Description copied from class: Property
    
    This method expects to be overridden by subclasses
    
    Overrides:
    
    getNumeric in class Property
    
    Returns:
    
    numeric value
  - getValue
```
public int getValue()
```
    Returns the length in 1/1000ths of a point (millipoints)
    
    Specified by:
    
    getValue in interface Length
    
    Specified by:
    
    getValue in interface Numeric
    
    Returns:
    
    the length in millipoints
  - getValue
```
public int getValue(PercentBaseContext context)
```
    Returns the length in 1/1000ths of a point (millipoints)
    
    Specified by:
    
    getValue in interface Length
    
    Specified by:
    
    getValue in interface Numeric
    
    Parameters:
    
    context - The context for the length calculation (for percentage based lengths)
    
    Returns:
    
    the length in millipoints
  - getTableUnits
```
public double getTableUnits()
```
    Return the number of table units which are included in this length specification. This will always be 0 unless the property specification used the proportional-column-width() function (only on table column FOs).
    If this value is not 0, the actual value of the Length cannot be known without looking at all of the columns in the table to determine the value of a "table-unit".
    
    Returns:
    
    The number of table units which are included in this length specification.
  - toString
```
public java.lang.String toString()
```
    Return a string represention of the expression. Only used for debugging.
    
    Overrides:
    
    toString in class Property
    
    Returns:
    
    the string representation.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class java.lang.Object

Class RelativeNumericProperty

Field Summary

Fields inherited from class org.apache.fop.fo.properties.Property

Constructor Summary

Method Summary

Methods inherited from class org.apache.fop.fo.properties.Property

Methods inherited from class java.lang.Object

Methods inherited from interface org.apache.fop.datatypes.Numeric

Field Detail

ADDITION

SUBTRACTION

MULTIPLY

DIVIDE

MODULO

NEGATE

ABS

MAX

MIN

Constructor Detail

RelativeNumericProperty

RelativeNumericProperty

Method Detail

getNumericValue

getNumericValue

getDimension

isAbsolute

getLength

getNumeric

getValue

getValue

getTableUnits

toString

hashCode

equals