LongOperations (ModeShape Distribution Library Reference (5.1.0.Final))

java.lang.Object
- org.modeshape.common.math.LongOperations

All Implemented Interfaces:: Comparator<Long>, MathOperations<Long>

@Immutable
public class LongOperations
extends Object
implements MathOperations<Long>, Comparator<Long>

The math operations for long numbers.

Constructor Summary

Constructors
Constructor and Description

LongOperations()

Constructors
Constructor and Description
`LongOperations()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Long`	`add(Long value1, Long value2)` Add the two operands and return the sum.
`BigDecimal`	`asBigDecimal(Long value)` Create a `BigDecimal` representation of the supplied value.
`int`	`compare(Long value1, Long value2)` Compare the two operands and return an integer that describes whether the first value is larger, smaller or the same as the second value.
`Long`	`create(double value)` Convert the double representation into the natural object representation.
`Long`	`create(int value)` Convert the integer representation into the natural object representation.
`Long`	`create(long value)` Convert the long representation into the natural object representation.
`Long`	`createZeroValue()` Create the object form of the "zero value".
`double`	`divide(Long value1, Long value2)` Divide the first operand by the second, and return the result.
`double`	`doubleValue(Long value)` Convert the value to a double.
`float`	`floatValue(Long value)` Convert the value to a float.
`Long`	`fromBigDecimal(BigDecimal value)` Convert the `BigDecimal` representation into the natural object representation.
`Comparator<Long>`	`getComparator()` Return a `Comparator` for this `operand class`.
`int`	`getExponentInScientificNotation(Long value)` Get the exponent if the number were written in exponential form.
`Class<Long>`	`getOperandClass()` Return the class that these operations operate upon.
`Long`	`increment(Long value)` Increment the supplied operand by 1.
`int`	`intValue(Long value)` Convert the value to an integer.
`Long`	`keepSignificantFigures(Long value, int numSigFigs)`
`long`	`longValue(Long value)` Convert the value to a long integer.
`Long`	`maximum(Long value1, Long value2)` Compare the two operands and return the one that is larger.
`Long`	`minimum(Long value1, Long value2)` Compare the two operands and return the one that is smaller.
`Long`	`multiply(Long value1, Long value2)` Multiply the two operands and return the product.
`Long`	`negate(Long value)` Negate the supplied operand.
`Long`	`random(Long minimum, Long maximum, Random rng)` Generate a random instance within the specified range.
`Long`	`roundDown(Long value, int decimalShift)` Round down the supplied value to the desired scale.
`Long`	`roundUp(Long value, int decimalShift)` Round up the supplied value to the desired scale.
`short`	`shortValue(Long value)` Convert the value to a short.
`double`	`sqrt(Long value)` Return the square root of the supplied operand.
`Long`	`subtract(Long value1, Long value2)` Subtract the second operand from the first, and return the difference.

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

Methods inherited from interface java.util.Comparator
comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

- Constructor Detail
  - LongOperations
```
public LongOperations()
```
- Method Detail
  - getOperandClass
```
public Class<Long> getOperandClass()
```
    Description copied from interface: MathOperations
    
    Return the class that these operations operate upon.
    
    Specified by:
    
    getOperandClass in interface MathOperations<Long>
    
    Returns:
    
    the class
  - add
```
public Long add(Long value1,
                Long value2)
```
    Description copied from interface: MathOperations
    
    Add the two operands and return the sum. The zero value is used in place of any operand that is null.
    
    Specified by:
    
    add in interface MathOperations<Long>
    
    Parameters:
    
    value1 - the first operand
    
    value2 - the second operand
    
    Returns:
    
    the sum of the two operands.
  - subtract
```
public Long subtract(Long value1,
                     Long value2)
```
    Description copied from interface: MathOperations
    
    Subtract the second operand from the first, and return the difference. The zero value is used in place of any operand that is null.
    
    Specified by:
    
    subtract in interface MathOperations<Long>
    
    Parameters:
    
    value1 - the first operand
    
    value2 - the second operand
    
    Returns:
    
    the difference between the two operands.
  - multiply
```
public Long multiply(Long value1,
                     Long value2)
```
    Description copied from interface: MathOperations
    
    Multiply the two operands and return the product. The zero value is used in place of any operand that is null.
    
    Specified by:
    
    multiply in interface MathOperations<Long>
    
    Parameters:
    
    value1 - the first operand
    
    value2 - the second operand
    
    Returns:
    
    the product of the two operands.
  - divide
```
public double divide(Long value1,
                     Long value2)
```
    Description copied from interface: MathOperations
    
    Divide the first operand by the second, and return the result. The zero value is used in place of any operand that is null.
    
    Specified by:
    
    divide in interface MathOperations<Long>
    
    Parameters:
    
    value1 - the first operand
    
    value2 - the second operand
    
    Returns:
    
    the result of the division
  - negate
```
public Long negate(Long value)
```
    Description copied from interface: MathOperations
    
    Negate the supplied operand. The zero value is used in place of any operand that is null.
    
    Specified by:
    
    negate in interface MathOperations<Long>
    
    Parameters:
    
    value - the value that is to be negated
    
    Returns:
    
    the result of the negation
  - increment
```
public Long increment(Long value)
```
    Description copied from interface: MathOperations
    
    Increment the supplied operand by 1. (Note, the exact meaning of "1" is dependent upon the particular operand class. The zero value is used in place of any operand that is null.
    
    Specified by:
    
    increment in interface MathOperations<Long>
    
    Parameters:
    
    value - the value that is to be incremented
    
    Returns:
    
    the incremented value
  - maximum
```
public Long maximum(Long value1,
                    Long value2)
```
    Description copied from interface: MathOperations
    
    Compare the two operands and return the one that is larger. A null value is considered smaller than non-null values (including 0).
    
    Specified by:
    
    maximum in interface MathOperations<Long>
    
    Parameters:
    
    value1 - the first operand
    
    value2 - the second operand
    
    Returns:
    
    the larger of the two operands
  - minimum
```
public Long minimum(Long value1,
                    Long value2)
```
    Description copied from interface: MathOperations
    
    Compare the two operands and return the one that is smaller. A null value is considered larger than non-null values (including 0).
    
    Specified by:
    
    minimum in interface MathOperations<Long>
    
    Parameters:
    
    value1 - the first operand
    
    value2 - the second operand
    
    Returns:
    
    the smaller of the two operands
  - compare
```
public int compare(Long value1,
                   Long value2)
```
    Description copied from interface: MathOperations
    
    Compare the two operands and return an integer that describes whether the first value is larger, smaller or the same as the second value. The semantics are identical to those of Comparable. The zero value is used in place of any operand that is null.
    
    Specified by:
    
    compare in interface Comparator<Long>
    
    Specified by:
    
    compare in interface MathOperations<Long>
    
    Parameters:
    
    value1 - the first operand
    
    value2 - the second operand
    
    Returns:
    
    -1 if the first value is smaller than the second, 1 if the first value is larger than the second, or 0 if they are equal.
  - asBigDecimal
```
public BigDecimal asBigDecimal(Long value)
```
    Description copied from interface: MathOperations
    
    Create a BigDecimal representation of the supplied value.
    
    Specified by:
    
    asBigDecimal in interface MathOperations<Long>
    
    Parameters:
    
    value - the value that is to be converted to a BigDecimal
    
    Returns:
    
    the BigDecimal representation, or null if value is null
  - fromBigDecimal
```
public Long fromBigDecimal(BigDecimal value)
```
    Description copied from interface: MathOperations
    
    Convert the BigDecimal representation into the natural object representation. This may result in loss of some data (e.g., converting a decimal to an integer results in the loss of the fractional part of the number).
    
    Specified by:
    
    fromBigDecimal in interface MathOperations<Long>
    
    Parameters:
    
    value - the BigDecimal value
    
    Returns:
    
    the natural representation, or null if value is null
  - createZeroValue
```
public Long createZeroValue()
```
    Description copied from interface: MathOperations
    
    Create the object form of the "zero value". This is often used to create an uninitialized object.
    
    Specified by:
    
    createZeroValue in interface MathOperations<Long>
    
    Returns:
    
    the object that represents zero.
  - create
```
public Long create(int value)
```
    Description copied from interface: MathOperations
    
    Convert the integer representation into the natural object representation.
    
    Specified by:
    
    create in interface MathOperations<Long>
    
    Parameters:
    
    value - the integer value
    
    Returns:
    
    the object representation of the integer
  - create
```
public Long create(long value)
```
    Description copied from interface: MathOperations
    
    Convert the long representation into the natural object representation.
    
    Specified by:
    
    create in interface MathOperations<Long>
    
    Parameters:
    
    value - the long value
    
    Returns:
    
    the object representation of the long integer
  - create
```
public Long create(double value)
```
    Description copied from interface: MathOperations
    
    Convert the double representation into the natural object representation.
    
    Specified by:
    
    create in interface MathOperations<Long>
    
    Parameters:
    
    value - the double value
    
    Returns:
    
    the object representation of the floating point number
  - sqrt
```
public double sqrt(Long value)
```
    Description copied from interface: MathOperations
    
    Return the square root of the supplied operand.
    
    Specified by:
    
    sqrt in interface MathOperations<Long>
    
    Parameters:
    
    value - the value whose root is to be found; may not be null or 0
    
    Returns:
    
    the square root of the value
  - getComparator
```
public Comparator<Long> getComparator()
```
    Description copied from interface: MathOperations
    
    Return a Comparator for this operand class. The implementation is free to return the same comparator instance from multiple invocations of this method.
    
    Specified by:
    
    getComparator in interface MathOperations<Long>
    
    Returns:
    
    a comparator
  - random
```
public Long random(Long minimum,
                   Long maximum,
                   Random rng)
```
    Description copied from interface: MathOperations
    
    Generate a random instance within the specified range.
    
    Specified by:
    
    random in interface MathOperations<Long>
    
    Parameters:
    
    minimum - the minimum value, or null if the zero-value should be used for the minimum
    
    maximum - the maximum value, or null if the zero-value should be used for the maximum
    
    rng - the random number generator to use
    
    Returns:
    
    an instance of the operand class placed within the desired range using a random distribution, or null if this class does not support generating random instances
  - doubleValue
```
public double doubleValue(Long value)
```
    Description copied from interface: MathOperations
    
    Convert the value to a double. This may result in a loss of information depending upon the operand class.
    
    Specified by:
    
    doubleValue in interface MathOperations<Long>
    
    Parameters:
    
    value - the value
    
    Returns:
    
    the representation as a double
  - floatValue
```
public float floatValue(Long value)
```
    Description copied from interface: MathOperations
    
    Convert the value to a float. This may result in a loss of information depending upon the operand class.
    
    Specified by:
    
    floatValue in interface MathOperations<Long>
    
    Parameters:
    
    value - the value
    
    Returns:
    
    the representation as a float
  - intValue
```
public int intValue(Long value)
```
    Description copied from interface: MathOperations
    
    Convert the value to an integer. This may result in a loss of information depending upon the operand class.
    
    Specified by:
    
    intValue in interface MathOperations<Long>
    
    Parameters:
    
    value - the value
    
    Returns:
    
    the representation as an integer
  - longValue
```
public long longValue(Long value)
```
    Description copied from interface: MathOperations
    
    Convert the value to a long integer. This may result in a loss of information depending upon the operand class.
    
    Specified by:
    
    longValue in interface MathOperations<Long>
    
    Parameters:
    
    value - the value
    
    Returns:
    
    the representation as a long
  - shortValue
```
public short shortValue(Long value)
```
    Description copied from interface: MathOperations
    
    Convert the value to a short. This may result in a loss of information depending upon the operand class.
    
    Specified by:
    
    shortValue in interface MathOperations<Long>
    
    Parameters:
    
    value - the value
    
    Returns:
    
    the representation as a short
  - getExponentInScientificNotation
```
public int getExponentInScientificNotation(Long value)
```
    Description copied from interface: MathOperations
    
    Get the exponent if the number were written in exponential form.
    
    Specified by:
    
    getExponentInScientificNotation in interface MathOperations<Long>
    
    Parameters:
    
    value - the value
    
    Returns:
    
    the scale
  - roundUp
```
public Long roundUp(Long value,
                    int decimalShift)
```
    Description copied from interface: MathOperations
    
    Round up the supplied value to the desired scale. This process works (conceptually) by shifting the decimal point of the value by decimalShift places, rounding, and then shifting the decimal point of the rounded value by -decimalShift
    For example, consider the number 10.000354. This can be rounded to 10.0004 by calling this method and supplying the value and an "exponentToKeep" value of -4.
    
    Specified by:
    
    roundUp in interface MathOperations<Long>
    
    Parameters:
    
    value - the value to be rounded
    
    decimalShift - the number of places the decimal point should be shifted before rounding
    
    Returns:
    
    the rounded value
  - roundDown
```
public Long roundDown(Long value,
                      int decimalShift)
```
    Description copied from interface: MathOperations
    
    Round down the supplied value to the desired scale. This process works (conceptually) by shifting the decimal point of the value by decimalShift places, rounding, and then shifting the decimal point of the rounded value by -decimalShift
    For example, consider the number 10.000354. This can be rounded to 10.0003 by calling this method and supplying the value and an "exponentToKeep" value of -4.
    
    Specified by:
    
    roundDown in interface MathOperations<Long>
    
    Parameters:
    
    value - the value to be rounded
    
    decimalShift - the number of places the decimal point should be shifted before rounding
    
    Returns:
    
    the rounded value
  - keepSignificantFigures
```
public Long keepSignificantFigures(Long value,
                                   int numSigFigs)
```
    Specified by:
    
    keepSignificantFigures in interface MathOperations<Long>

Class LongOperations

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Comparator

Constructor Detail

LongOperations

Method Detail

getOperandClass

add

subtract

multiply

divide

negate

increment

maximum

minimum

compare

asBigDecimal

fromBigDecimal

createZeroValue

create

create

create

sqrt

getComparator

random

doubleValue

floatValue

intValue

longValue

shortValue

getExponentInScientificNotation

roundUp

roundDown

keepSignificantFigures