gnu.trove.impl.hash

Class TIntHash

java.lang.Object

gnu.trove.impl.hash.THash

gnu.trove.impl.hash.TPrimitiveHash

gnu.trove.impl.hash.TIntHash

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable

Direct Known Subclasses:

TIntHashSet, TIntObjectHashMap

public abstract class TIntHash
extends TPrimitiveHash

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

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
int[]	_set the set of ints

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

_states, FREE, FULL, REMOVED

Constructor Summary

Constructors

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

Method Summary

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

the set of ints

Constructor Detail

TIntHash

public TIntHash()

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

TIntHash

public TIntHash(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TIntHash

public TIntHash(int initialCapacity,
                float loadFactor)

Creates a new TIntHash 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.

TIntHash

public TIntHash(int initialCapacity,
                float loadFactor,
                int no_entry_value)

Creates a new TIntHash 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 int 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(int val)

Searches the set for val

Parameters:

val - an int value

Returns:

a boolean value

forEach

public boolean forEach(TIntProcedure 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.