Class SetIterables
- java.lang.Object
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- org.eclipse.collections.impl.utility.internal.SetIterables
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public final class SetIterables extends java.lang.Object
Set algebra operations.Most operations are non-destructive, i.e. no input sets are modified during execution. The exception is operations ending in "Into." These accept the target collection of the final calculation as the first parameter.
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Constructor Summary
Constructors Modifier Constructor Description private
SetIterables()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static <A,B>
LazyIterable<Pair<A,B>>cartesianProduct(SetIterable<A> set1, SetIterable<B> set2)
static <A,B,C>
LazyIterable<C>cartesianProduct(SetIterable<A> set1, SetIterable<B> set2, Function2<A,B,C> function)
static <E> MutableSet<E>
difference(SetIterable<? extends E> minuendSet, SetIterable<? extends E> subtrahendSet)
static <E,R extends java.util.Set<E>>
RdifferenceInto(SetIterable<? extends E> minuendSet, SetIterable<? extends E> subtrahendSet, R targetSet)
static <T> ImmutableSet<ImmutableSet<T>>
immutablePowerSet(java.util.Set<T> set)
Returns an Immutable version of powerset where the inner sets are also immutable.static <E> MutableSet<E>
intersect(SetIterable<? extends E> setA, SetIterable<? extends E> setB)
static <E,R extends java.util.Set<E>>
RintersectInto(SetIterable<? extends E> setA, SetIterable<? extends E> setB, R targetSet)
static <E> boolean
isProperSubsetOf(SetIterable<? extends E> candidateSubset, SetIterable<? extends E> candidateSuperset)
static <E> boolean
isSubsetOf(SetIterable<? extends E> candidateSubset, SetIterable<? extends E> candidateSuperset)
static <T> MutableSet<MutableSet<T>>
powerSet(java.util.Set<T> set)
static <T> MutableSet<MutableSet<T>>
powerSet(UnifiedSetWithHashingStrategy<T> set)
private static <T> MutableSet<MutableSet<T>>
powerSetWithSeed(java.util.Set<T> set, MutableSet<MutableSet<T>> seed)
static <E> MutableSet<E>
symmetricDifference(SetIterable<? extends E> setA, SetIterable<? extends E> setB)
static <E,R extends java.util.Set<E>>
RsymmetricDifferenceInto(SetIterable<? extends E> setA, SetIterable<? extends E> setB, R targetSet)
static <E> MutableSet<E>
union(SetIterable<? extends E> setA, SetIterable<? extends E> setB)
static <E,R extends java.util.Set<E>>
RunionInto(SetIterable<? extends E> setA, SetIterable<? extends E> setB, R targetSet)
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Method Detail
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union
public static <E> MutableSet<E> union(SetIterable<? extends E> setA, SetIterable<? extends E> setB)
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unionInto
public static <E,R extends java.util.Set<E>> R unionInto(SetIterable<? extends E> setA, SetIterable<? extends E> setB, R targetSet)
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intersect
public static <E> MutableSet<E> intersect(SetIterable<? extends E> setA, SetIterable<? extends E> setB)
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intersectInto
public static <E,R extends java.util.Set<E>> R intersectInto(SetIterable<? extends E> setA, SetIterable<? extends E> setB, R targetSet)
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difference
public static <E> MutableSet<E> difference(SetIterable<? extends E> minuendSet, SetIterable<? extends E> subtrahendSet)
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differenceInto
public static <E,R extends java.util.Set<E>> R differenceInto(SetIterable<? extends E> minuendSet, SetIterable<? extends E> subtrahendSet, R targetSet)
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symmetricDifference
public static <E> MutableSet<E> symmetricDifference(SetIterable<? extends E> setA, SetIterable<? extends E> setB)
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symmetricDifferenceInto
public static <E,R extends java.util.Set<E>> R symmetricDifferenceInto(SetIterable<? extends E> setA, SetIterable<? extends E> setB, R targetSet)
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isSubsetOf
public static <E> boolean isSubsetOf(SetIterable<? extends E> candidateSubset, SetIterable<? extends E> candidateSuperset)
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isProperSubsetOf
public static <E> boolean isProperSubsetOf(SetIterable<? extends E> candidateSubset, SetIterable<? extends E> candidateSuperset)
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powerSet
public static <T> MutableSet<MutableSet<T>> powerSet(java.util.Set<T> set)
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powerSet
public static <T> MutableSet<MutableSet<T>> powerSet(UnifiedSetWithHashingStrategy<T> set)
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powerSetWithSeed
private static <T> MutableSet<MutableSet<T>> powerSetWithSeed(java.util.Set<T> set, MutableSet<MutableSet<T>> seed)
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immutablePowerSet
public static <T> ImmutableSet<ImmutableSet<T>> immutablePowerSet(java.util.Set<T> set)
Returns an Immutable version of powerset where the inner sets are also immutable.
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cartesianProduct
public static <A,B> LazyIterable<Pair<A,B>> cartesianProduct(SetIterable<A> set1, SetIterable<B> set2)
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cartesianProduct
public static <A,B,C> LazyIterable<C> cartesianProduct(SetIterable<A> set1, SetIterable<B> set2, Function2<A,B,C> function)
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