gnu.trove.impl.hash

Class TDoubleHash

java.lang.Object

gnu.trove.impl.hash.THash

gnu.trove.impl.hash.TPrimitiveHash

gnu.trove.impl.hash.TDoubleHash

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable

Direct Known Subclasses:

TDoubleHashSet, TDoubleObjectHashMap

public abstract class TDoubleHash
extends TPrimitiveHash

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

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
double[]	_set the set of doubles

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

_states, FREE, FULL, REMOVED

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
boolean	contains(double val) Searches the set for val
boolean	forEach(TDoubleProcedure procedure) Executes procedure for each element in the set.
double	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 double[] _set

the set of doubles

Constructor Detail

TDoubleHash

public TDoubleHash()

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

TDoubleHash

public TDoubleHash(int initialCapacity)

Creates a new TDoubleHash instance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.

Parameters:

initialCapacity - an int value

TDoubleHash

public TDoubleHash(int initialCapacity,
                   float loadFactor)

Creates a new TDoubleHash 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.

TDoubleHash

public TDoubleHash(int initialCapacity,
                   float loadFactor,
                   double no_entry_value)

Creates a new TDoubleHash 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 double 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(double val)

Searches the set for val

Parameters:

val - an double value

Returns:

a boolean value

forEach

public boolean forEach(TDoubleProcedure 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.