Package org.apache.lucene.search
Class Multiset<T>
- java.lang.Object
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- java.util.AbstractCollection<T>
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- org.apache.lucene.search.Multiset<T>
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- All Implemented Interfaces:
Iterable<T>,Collection<T>
public final class Multiset<T> extends AbstractCollection<T>
AMultisetis a set that allows for duplicate elements. TwoMultisets are equal if they contain the same unique elements and if each unique element has as many occurrences in both multisets. Iteration order is not specified.- NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanadd(T e)voidclear()booleancontains(Object o)booleanequals(Object obj)inthashCode()Iterator<T>iterator()booleanremove(Object o)intsize()-
Methods inherited from class java.util.AbstractCollection
addAll, containsAll, isEmpty, removeAll, retainAll, toArray, toArray, toString
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface java.util.Collection
parallelStream, removeIf, spliterator, stream, toArray
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Constructor Detail
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Multiset
public Multiset()
Create an emptyMultiset.
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Method Detail
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iterator
public Iterator<T> iterator()
- Specified by:
iteratorin interfaceCollection<T>- Specified by:
iteratorin interfaceIterable<T>- Specified by:
iteratorin classAbstractCollection<T>
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size
public int size()
- Specified by:
sizein interfaceCollection<T>- Specified by:
sizein classAbstractCollection<T>
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clear
public void clear()
- Specified by:
clearin interfaceCollection<T>- Overrides:
clearin classAbstractCollection<T>
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add
public boolean add(T e)
- Specified by:
addin interfaceCollection<T>- Overrides:
addin classAbstractCollection<T>
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remove
public boolean remove(Object o)
- Specified by:
removein interfaceCollection<T>- Overrides:
removein classAbstractCollection<T>
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contains
public boolean contains(Object o)
- Specified by:
containsin interfaceCollection<T>- Overrides:
containsin classAbstractCollection<T>
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equals
public boolean equals(Object obj)
- Specified by:
equalsin interfaceCollection<T>- Overrides:
equalsin classObject
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hashCode
public int hashCode()
- Specified by:
hashCodein interfaceCollection<T>- Overrides:
hashCodein classObject
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