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Java Source Code / Java Documentation » Science » jscience 4.3.1 » javax.measure.unit

Source Cross Reference Class Diagram Java Document (Java Doc)

javax.measure.unit .ProductUnit

ProductUnit

final public class ProductUnit extends DerivedUnit (Code)

This class represents units formed by the product of rational powers of existing units.

This class maintains the canonical form of this product (simplest form after factorization). For example: METER.pow(2).divide(METER) returns METER.

author:
   Jean-Marie Dautelle
version:
   3.1, April 22, 2006
See Also:   Unit.times(Unit)
See Also:   Unit.divide(Unit)
See Also:   Unit.pow(int)
See Also:   Unit.root(int)

Constructor Summary
	ProductUnit() Default constructor (used solely to create `ONE` instance).
public	ProductUnit(Unit productUnit) Copy constructor (allows for parameterization of product units).

Method Summary
public boolean	equals(Object that) Indicates if this product unit is considered equals to the specified object. Parameters: that - the object to compare for equality.
static Unit<? extends Quantity>	getPowInstance(Unit unit, int n) Returns the product unit corresponding to this unit raised to the specified exponent. Parameters: unit - the unit. Parameters: nn - the exponent (nn > 0).
static Unit<? extends Quantity>	getProductInstance(Unit left, Unit right) Returns the product of the specified units. Parameters: left - the left unit operand. Parameters: right - the right unit operand.
static Unit<? extends Quantity>	getQuotientInstance(Unit left, Unit right) Returns the quotient of the specified units. Parameters: left - the dividend unit operand. Parameters: right - the divisor unit operand.
static Unit<? extends Quantity>	getRootInstance(Unit unit, int n) Returns the product unit corresponding to the specified root of the specified unit. Parameters: unit - the unit. Parameters: n - the root's order (n > 0).
public Unit<? super Q>	getStandardUnit()
public Unit<? extends Quantity>	getUnit(int index) Returns the unit at the specified position. Parameters: index - the index of the unit to return.
public int	getUnitCount() Returns the number of units in this product.
public int	getUnitPow(int index) Returns the power exponent of the unit at the specified position. Parameters: index - the index of the unit to return.
public int	getUnitRoot(int index) Returns the root exponent of the unit at the specified position. Parameters: index - the index of the unit to return.
public int	hashCode()
public UnitConverter	toStandardUnit()

Constructor Detail

ProductUnit
ProductUnit()(Code)
	Default constructor (used solely to create `ONE` instance).

ProductUnit
public ProductUnit(Unit productUnit)(Code)
	Copy constructor (allows for parameterization of product units). Parameters: productUnit - the product unit source. throws: ClassCastException - if the specified unit is not a product unit.

Method Detail

equals
public boolean equals(Object that)(Code)
	Indicates if this product unit is considered equals to the specified object. Parameters: that - the object to compare for equality. `true` if `this` and `that`are considered equals; `false`otherwise.

getPowInstance
static Unit<? extends Quantity> getPowInstance(Unit unit, int n)(Code)
	Returns the product unit corresponding to this unit raised to the specified exponent. Parameters: unit - the unit. Parameters: nn - the exponent (nn > 0). `unit^n`

getProductInstance
static Unit<? extends Quantity> getProductInstance(Unit left, Unit right)(Code)
	Returns the product of the specified units. Parameters: left - the left unit operand. Parameters: right - the right unit operand. `left * right`

getQuotientInstance
static Unit<? extends Quantity> getQuotientInstance(Unit left, Unit right)(Code)
	Returns the quotient of the specified units. Parameters: left - the dividend unit operand. Parameters: right - the divisor unit operand. `dividend / divisor`

getRootInstance
static Unit<? extends Quantity> getRootInstance(Unit unit, int n)(Code)
	Returns the product unit corresponding to the specified root of the specified unit. Parameters: unit - the unit. Parameters: n - the root's order (n > 0). `unit^(1/nn)` throws: ArithmeticException - if `n == 0`.

getStandardUnit
public Unit<? super Q> getStandardUnit()(Code)

getUnit
public Unit<? extends Quantity> getUnit(int index)(Code)
	Returns the unit at the specified position. Parameters: index - the index of the unit to return. the unit at the specified position. throws: IndexOutOfBoundsException - if index is out of range`(index < 0 \|\| index >= size())`.

getUnitCount
public int getUnitCount()(Code)
	Returns the number of units in this product. the number of units being multiplied.

getUnitPow
public int getUnitPow(int index)(Code)
	Returns the power exponent of the unit at the specified position. Parameters: index - the index of the unit to return. the unit power exponent at the specified position. throws: IndexOutOfBoundsException - if index is out of range`(index < 0 \|\| index >= size())`.

getUnitRoot
public int getUnitRoot(int index)(Code)
	Returns the root exponent of the unit at the specified position. Parameters: index - the index of the unit to return. the unit root exponent at the specified position. throws: IndexOutOfBoundsException - if index is out of range`(index < 0 \|\| index >= size())`.

hashCode
public int hashCode()(Code)

toStandardUnit
public UnitConverter toStandardUnit()(Code)

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