Interface RepresentativeFraction
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@Classifier(DATATYPE) @UML(identifier="MD_RepresentativeFraction", specification=ISO_19115) public interface RepresentativeFraction
A scale defined as the inverse of a denominator. This is derived from ISO 19103Scale
where denominator = 1 / scale.Implementations are encouraged to extend
Number
in a manner equivalent to:class MyFraction extends Number implements RepresentativeFraction { public double doubleValue() { return 1.0 / (double) denominator; } public float floatValue() { return 1.0f / (float) denominator; } public long longValue() { return 1 / denominator; // Result is zero except for denominator = [0,1]. } }
- Since:
- 2.1
- See Also:
Resolution.getEquivalentScale()
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Method Summary
Modifier and Type Method Description double
doubleValue()
Returns the scale value in a form usable for computation.boolean
equals(Object other)
Compares this representative fraction with the specified object for equality.long
getDenominator()
The number below the line in a vulgar fraction.int
hashCode()
Returns a hash value for this representative fraction.
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Method Detail
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doubleValue
double doubleValue()
Returns the scale value in a form usable for computation.- Returns:
1.0 / (double) getDenominator()
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getDenominator
@UML(identifier="denominator", obligation=MANDATORY, specification=ISO_19115) long getDenominator()
The number below the line in a vulgar fraction.- Returns:
- the denominator.
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equals
boolean equals(Object other)
Compares this representative fraction with the specified object for equality. Implementations should match the following:public boolean equals(Object object) { if (object instanceof RepresentativeFraction) { final RepresentativeFraction that = (RepresentativeFraction) object; return getDenominator() == that.getDenominator(); } return false; }
- Overrides:
equals
in classObject
- Parameters:
other
- the object to compare with.- Returns:
true
ifother
is aRepresentedFraction
with the same denominator value.
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