public class SelectedCountLimitValueSelector extends AbstractValueSelector implements EntityIndependentValueSelector
Modifier and Type | Field and Description |
---|---|
protected ValueSelector |
childValueSelector |
protected long |
selectedCountLimit |
logger, phaseLifecycleSupport, workingRandom
Constructor and Description |
---|
SelectedCountLimitValueSelector(ValueSelector childValueSelector,
long selectedCountLimit)
Unlike most of the other
ValueSelector decorations,
this one works for an entity dependent ValueSelector too. |
Modifier and Type | Method and Description |
---|---|
Iterator<Object> |
endingIterator(Object entity)
If
Selector.isNeverEnding() is true, then ValueSelector.iterator(Object) will never end. |
long |
getSize()
A random JIT
Selector with Selector.isNeverEnding() true should return a size
as if it would be able to return each distinct element only once,
because the size can be used in SelectionProbabilityWeightFactory . |
long |
getSize(Object entity)
Similar to
IterableSelector.getSize() , but requires an entity. |
GenuineVariableDescriptor |
getVariableDescriptor() |
boolean |
isCountable()
If false, then
Selector.isNeverEnding() is true. |
boolean |
isNeverEnding()
Is true if
Selector.isCountable() is false
or if this selector is in random order (for most cases). |
Iterator<Object> |
iterator() |
Iterator<Object> |
iterator(Object entity)
Similar to
Iterable.iterator() , but requires an entity. |
String |
toString() |
getCacheType, phaseEnded, phaseStarted, solvingEnded, solvingStarted, stepEnded, stepStarted
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
getCacheType
phaseEnded, phaseStarted, stepEnded, stepStarted
solvingEnded, solvingStarted
forEach, spliterator
protected final ValueSelector childValueSelector
protected final long selectedCountLimit
public SelectedCountLimitValueSelector(ValueSelector childValueSelector, long selectedCountLimit)
ValueSelector
decorations,
this one works for an entity dependent ValueSelector
too.childValueSelector
- never null, if any of the EntityIndependentValueSelector
specific methods
are going to be used, this parameter must also implement that interfaceselectedCountLimit
- at least 0public GenuineVariableDescriptor getVariableDescriptor()
getVariableDescriptor
in interface ValueSelector
public boolean isCountable()
Selector
Selector.isNeverEnding()
is true.isCountable
in interface Selector
ValueRange
s are countable
(for example a double value range between 1.2 and 1.4 is not countable)public boolean isNeverEnding()
Selector
Selector.isCountable()
is false
or if this selector is in random order (for most cases).
Is never true when this selector is in shuffled order (which is less scalable but more exact).isNeverEnding
in interface Selector
Iterator.hasNext()
of the Iterator
created by Iterable.iterator()
never returns false (except when it's empty).public long getSize(Object entity)
ValueSelector
IterableSelector.getSize()
, but requires an entity.getSize
in interface ValueSelector
entity
- never nullSelector
, always >= 0
public long getSize()
IterableSelector
Selector
with Selector.isNeverEnding()
true should return a size
as if it would be able to return each distinct element only once,
because the size can be used in SelectionProbabilityWeightFactory
.getSize
in interface IterableSelector<Object>
Selector
, always >= 0
public Iterator<Object> iterator(Object entity)
ValueSelector
Iterable.iterator()
, but requires an entity.iterator
in interface ValueSelector
entity
- never nullpublic Iterator<Object> endingIterator(Object entity)
ValueSelector
Selector.isNeverEnding()
is true, then ValueSelector.iterator(Object)
will never end.
This returns an ending Iterator
, that tries to match ValueSelector.iterator(Object)
as much as possible,
but return each distinct element only once
and therefore it might not respect the configuration of this ValueSelector
entirely.endingIterator
in interface ValueSelector
entity
- never nullValueSelector.iterator(Object)
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