Class LongValueRange
- java.lang.Object
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- org.optaplanner.core.impl.domain.valuerange.AbstractCountableValueRange<Long>
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- org.optaplanner.core.impl.domain.valuerange.buildin.primlong.LongValueRange
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- All Implemented Interfaces:
CountableValueRange<Long>,ValueRange<Long>
public class LongValueRange extends AbstractCountableValueRange<Long>
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Constructor Summary
Constructors Constructor Description LongValueRange(long from, long to)LongValueRange(long from, long to, long incrementUnit)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description booleancontains(Long value)Iterator<Long>createOriginalIterator()Select the elements in original (natural) order.Iterator<Long>createRandomIterator(Random workingRandom)Select in random order, but without shuffling the elements.Longget(long index)Used by uniform random selection in a composite or nullable CountableValueRange.longgetSize()Used by uniform random selection in a composite or nullable CountableValueRange.StringtoString()-
Methods inherited from class org.optaplanner.core.impl.domain.valuerange.AbstractCountableValueRange
isEmpty
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Constructor Detail
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LongValueRange
public LongValueRange(long from, long to)- Parameters:
from- inclusive minimumto- exclusive maximum,>= from
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LongValueRange
public LongValueRange(long from, long to, long incrementUnit)- Parameters:
from- inclusive minimumto- exclusive maximum,>= fromincrementUnit-> 0
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Method Detail
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getSize
public long getSize()
Description copied from interface:CountableValueRangeUsed by uniform random selection in a composite or nullable CountableValueRange.- Returns:
- the exact number of elements generated by this
CountableValueRange, always>= 0
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contains
public boolean contains(Long value)
- Parameters:
value- sometimes null- Returns:
- true if the ValueRange contains that value
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get
public Long get(long index)
Description copied from interface:CountableValueRangeUsed by uniform random selection in a composite or nullable CountableValueRange.- Parameters:
index- always<CountableValueRange.getSize()- Returns:
- sometimes null (if
PlanningVariable.nullable()is true)
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createOriginalIterator
public Iterator<Long> createOriginalIterator()
Description copied from interface:CountableValueRangeSelect the elements in original (natural) order.- Returns:
- never null
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createRandomIterator
public Iterator<Long> createRandomIterator(Random workingRandom)
Description copied from interface:ValueRangeSelect in random order, but without shuffling the elements. Each element might be selected multiple times. Scales well because it does not require caching.- Parameters:
workingRandom- never null, theRandomto use when any random number is needed, soEnvironmentMode.REPRODUCIBLEworks correctly.RandomUtilscan be useful too.- Returns:
- never null
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