gnu.trove
Class TByteHash
- TByteHashingStrategy
public abstract class TByteHash
extends TPrimitiveHash
implements TByteHashingStrategy
An open addressed hashing implementation for byte primitives.
Created: Sun Nov 4 08:56:06 2001
$Id: PHash.template,v 1.2 2007/06/29 22:39:46 robeden Exp $protected TByteHashingStrategy | _hashingStrategy - strategy used to hash values in this collection
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protected byte[] | _set - the set of bytes
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TByteHash() - Creates a new
TByteHash instance with the default
capacity and load factor.
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TByteHash(TByteHashingStrategy strategy) - Creates a new
TByteHash instance with the default
capacity and load factor.
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TByteHash(int initialCapacity) - Creates a new
TByteHash instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime.
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TByteHash(int initialCapacity, TByteHashingStrategy strategy) - Creates a new
TByteHash instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime.
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TByteHash(int initialCapacity, float loadFactor) - Creates a new
TByteHash instance with a prime
value at or near the specified capacity and load factor.
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TByteHash(int initialCapacity, float loadFactor, TByteHashingStrategy strategy) - Creates a new
TByteHash instance with a prime
value at or near the specified capacity and load factor.
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Object | clone()
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int | computeHashCode(byte val) - Default implementation of TByteHashingStrategy:
delegates hashing to HashFunctions.hash(byte).
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boolean | contains(byte val) - Searches the set for val
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boolean | forEach(TByteProcedure procedure) - Executes procedure for each element in the set.
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protected int | index(byte val) - Locates the index of val.
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protected int | insertionIndex(byte val) - Locates the index at which val can be inserted.
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protected void | removeAt(int index) - Releases the element currently stored at index.
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protected int | setUp(int initialCapacity) - initializes the hashtable to a prime capacity which is at least
initialCapacity + 1.
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_hashingStrategy
protected TByteHashingStrategy _hashingStrategy
strategy used to hash values in this collection
_set
protected byte[] _set
the set of bytes
TByteHash
public TByteHash()
Creates a new TByteHash
instance with the default
capacity and load factor.
TByteHash
public TByteHash(TByteHashingStrategy strategy)
Creates a new TByteHash
instance with the default
capacity and load factor.
strategy
- used to compute hash codes and to compare keys.
TByteHash
public TByteHash(int initialCapacity)
Creates a new TByteHash
instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime.
initialCapacity
- an int
value
TByteHash
public TByteHash(int initialCapacity,
TByteHashingStrategy strategy)
Creates a new TByteHash
instance whose capacity
is the next highest prime above initialCapacity + 1
unless that value is already prime.
initialCapacity
- an int
valuestrategy
- used to compute hash codes and to compare keys.
TByteHash
public TByteHash(int initialCapacity,
float loadFactor)
Creates a new TByteHash
instance with a prime
value at or near the specified capacity and load factor.
initialCapacity
- used to find a prime capacity for the table.loadFactor
- used to calculate the threshold over which
rehashing takes place.
TByteHash
public TByteHash(int initialCapacity,
float loadFactor,
TByteHashingStrategy strategy)
Creates a new TByteHash
instance with a prime
value at or near the specified capacity and load factor.
initialCapacity
- used to find a prime capacity for the table.loadFactor
- used to calculate the threshold over which
rehashing takes place.strategy
- used to compute hash codes and to compare keys.
clone
public Object clone()
- a deep clone of this collection
computeHashCode
public final int computeHashCode(byte val)
Default implementation of TByteHashingStrategy:
delegates hashing to HashFunctions.hash(byte).
contains
public boolean contains(byte val)
Searches the set for val
forEach
public boolean forEach(TByteProcedure procedure)
Executes procedure for each element in the set.
procedure
- a TObjectProcedure
value
- false if the loop over the set terminated because
the procedure returned false for some value.
index
protected int index(byte val)
Locates the index of val.
- the index of val or -1 if it isn't in the set.
insertionIndex
protected int insertionIndex(byte val)
Locates the index at which val can be inserted. if
there is already a value equal()ing val in the set,
returns that value as a negative integer.
removeAt
protected void removeAt(int index)
Releases the element currently stored at index.
setUp
protected int setUp(int initialCapacity)
initializes the hashtable to a prime capacity which is at least
initialCapacity + 1.
initialCapacity
- an int
value
- the actual capacity chosen
GNU Trove is copyright B) 2001-2008 Eric D. Friedman. All Rights Reserved.