Calc

java.lang.Object

rife.bld.extension.propertyfile.Calc

public final class Calc extends Object

Implements the calculation functions for integer properties.

ADD and SUB match Apache Ant <propertyfile> behavior. Additional functions are extensions.

Since:: 1.0
Author:: Geert Bevin, Erik C. Thauvin

Field Summary

Fields

Modifier and Type

Field

Description

static final IntFunction<Integer>

ADD

Adds 1.

static final IntFunction<Integer>

DOUBLE

Multiplies by 2.

static final IntFunction<Integer>

HALF

Divides by 2.

static final IntFunction<Integer>

NEGATE

Negates the value.

static final IntFunction<Integer>

SUB

Subtracts 1.
Method Summary

Modifier and Type

Method

Description

static Integer

add(int v)

Adds 1 to the value.

static Integer

dbl(int v)

Doubles the value.

static Integer

half(int v)

Halves the value, truncating toward zero.

static Integer

negate(int v)

Negates the value.

static IntFunction<Integer>

plus(int n)

Returns a function that adds a constant.

static Integer

sub(int v)

Subtracts 1 from the value.

static IntFunction<Integer>

times(int n)

Returns a function that multiplies by a constant.

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

Field Details
- ADD
  
  public static final IntFunction<Integer> ADD
  
  Adds 1. Ant-compatible.
- DOUBLE
  
  public static final IntFunction<Integer> DOUBLE
  
  Multiplies by 2. Extension.
- HALF
  
  public static final IntFunction<Integer> HALF
  
  Divides by 2. Extension.
- NEGATE
  
  public static final IntFunction<Integer> NEGATE
  
  Negates the value. Extension.
- SUB
  
  public static final IntFunction<Integer> SUB
  
  Subtracts 1. Ant-compatible.
Method Details
- add
  
  public static Integer add(int v)
  
  Adds 1 to the value.
- dbl
  
  public static Integer dbl(int v)
  
  Doubles the value.
- half
  
  public static Integer half(int v)
  
  Halves the value, truncating toward zero.
- negate
  
  public static Integer negate(int v)
  
  Negates the value.
- plus
  
  public static IntFunction<Integer> plus(int n)
  
  Returns a function that adds a constant.
  
  Parameters:
  
  n - the constant to add
  
  Returns:
  
  a function adding n
- sub
  
  public static Integer sub(int v)
  
  Subtracts 1 from the value.
- times
  
  public static IntFunction<Integer> times(int n)
  
  Returns a function that multiplies by a constant.
  
  Parameters:
  
  n - the constant to multiply by
  
  Returns:
  
  a function multiplying by n