gnu.trove.impl.hash

Class TByteHash

java.lang.Object

gnu.trove.impl.hash.THash

gnu.trove.impl.hash.TPrimitiveHash

gnu.trove.impl.hash.TByteHash

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable

Direct Known Subclasses:

TByteHashSet, TByteObjectHashMap

public abstract class TByteHash
extends TPrimitiveHash

An open addressed hashing implementation for byte primitives. Created: Sun Nov 4 08:56:06 2001

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
byte[]	_set the set of bytes

Fields inherited from class gnu.trove.impl.hash.TPrimitiveHash

_states, FREE, FULL, REMOVED

Constructor Summary

Constructors

Constructor and Description
TByteHash() Creates a new TByteHash instance with the default capacity and load factor.
TByteHash(int initialCapacity) Creates a new TByteHash instance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.
TByteHash(int initialCapacity, float loadFactor) Creates a new TByteHash instance with a prime value at or near the specified capacity and load factor.
TByteHash(int initialCapacity, float loadFactor, byte no_entry_value) Creates a new TByteHash instance with a prime value at or near the specified capacity and load factor.

Method Summary

Modifier and Type	Method and Description
boolean	contains(byte val) Searches the set for val
boolean	forEach(TByteProcedure procedure) Executes procedure for each element in the set.
byte	getNoEntryValue() Returns the value that is used to represent null.

Methods inherited from class gnu.trove.impl.hash.TPrimitiveHash

capacity

Methods inherited from class gnu.trove.impl.hash.THash

clear, compact, ensureCapacity, getAutoCompactionFactor, isEmpty, readExternal, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize, writeExternal

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_set

public transient byte[] _set

the set of bytes

Constructor Detail

TByteHash

public TByteHash()

Creates a new TByteHash instance with the default capacity and load factor.

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.

Parameters:

initialCapacity - an int value

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.

Parameters:

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,
                 byte no_entry_value)

Creates a new TByteHash instance with a prime value at or near the specified capacity and load factor.

Parameters:

initialCapacity - used to find a prime capacity for the table.

loadFactor - used to calculate the threshold over which rehashing takes place.

no_entry_value - value that represents null

Method Detail

getNoEntryValue

public byte getNoEntryValue()

Returns the value that is used to represent null. The default value is generally zero, but can be changed during construction of the collection.

Returns:

the value that represents null

contains

public boolean contains(byte val)

Searches the set for val

Parameters:

val - an byte value

Returns:

a boolean value

forEach

public boolean forEach(TByteProcedure procedure)

Executes procedure for each element in the set.

Parameters:

procedure - a TObjectProcedure value

Returns:

false if the loop over the set terminated because the procedure returned false for some value.