Package it.unimi.dsi.sux4j.mph
Class VLPaCoTrieDistributorMonotoneMinimalPerfectHashFunction<T>
- java.lang.Object
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- it.unimi.dsi.fastutil.objects.AbstractObject2LongFunction<K>
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- it.unimi.dsi.sux4j.mph.AbstractHashFunction<T>
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- it.unimi.dsi.sux4j.mph.VLPaCoTrieDistributorMonotoneMinimalPerfectHashFunction<T>
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- All Implemented Interfaces:
it.unimi.dsi.fastutil.Function<T,java.lang.Long>
,it.unimi.dsi.fastutil.objects.Object2LongFunction<T>
,it.unimi.dsi.fastutil.Size64
,java.io.Serializable
,java.util.function.Function<T,java.lang.Long>
,java.util.function.ToLongFunction<T>
public class VLPaCoTrieDistributorMonotoneMinimalPerfectHashFunction<T> extends AbstractHashFunction<T> implements java.io.Serializable, it.unimi.dsi.fastutil.Size64
A version of aPaCoTrieDistributorMonotoneMinimalPerfectHashFunction
whose space usage depends on the average string length, rather than on the maximum string length; mainly of theoretical interest.- Author:
- Sebastiano Vigna
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static long
serialVersionUID
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Constructor Summary
Constructors Constructor Description VLPaCoTrieDistributorMonotoneMinimalPerfectHashFunction(java.lang.Iterable<? extends T> elements, it.unimi.dsi.bits.TransformationStrategy<? super T> transform)
Creates a new PaCo-trie-based monotone minimal perfect hash function using the given elements and transformation strategy.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description long
getLong(java.lang.Object o)
static void
main(java.lang.String[] arg)
long
numBits()
long
size64()
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Methods inherited from class it.unimi.dsi.sux4j.mph.AbstractHashFunction
containsKey, size
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Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractObject2LongFunction
defaultReturnValue, defaultReturnValue
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2LongFunction
andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsLong, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, get, getOrDefault, getOrDefault, put, put, remove, removeLong
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Field Detail
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serialVersionUID
public static final long serialVersionUID
- See Also:
- Constant Field Values
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Constructor Detail
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VLPaCoTrieDistributorMonotoneMinimalPerfectHashFunction
public VLPaCoTrieDistributorMonotoneMinimalPerfectHashFunction(java.lang.Iterable<? extends T> elements, it.unimi.dsi.bits.TransformationStrategy<? super T> transform) throws java.io.IOException
Creates a new PaCo-trie-based monotone minimal perfect hash function using the given elements and transformation strategy.- Parameters:
elements
- the elements among which the trie must be able to rank.transform
- a transformation strategy that must turn the elements inelements
into a list of distinct, prefix-free, lexicographically increasing (in iteration order) bit vectors.- Throws:
java.io.IOException
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Method Detail
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getLong
public long getLong(java.lang.Object o)
- Specified by:
getLong
in interfaceit.unimi.dsi.fastutil.objects.Object2LongFunction<T>
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size64
public long size64()
- Specified by:
size64
in interfaceit.unimi.dsi.fastutil.Size64
- Overrides:
size64
in classAbstractHashFunction<T>
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numBits
public long numBits()
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main
public static void main(java.lang.String[] arg) throws java.lang.NoSuchMethodException, java.io.IOException, com.martiansoftware.jsap.JSAPException
- Throws:
java.lang.NoSuchMethodException
java.io.IOException
com.martiansoftware.jsap.JSAPException
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