gnu.trove.impl.hash

Class TLongHash

java.lang.Object

gnu.trove.impl.hash.THash

gnu.trove.impl.hash.TPrimitiveHash

gnu.trove.impl.hash.TLongHash

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable

Direct Known Subclasses:

TLongHashSet, TLongObjectHashMap

public abstract class TLongHash
extends TPrimitiveHash

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

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
long[]	_set the set of longs

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

_states, FREE, FULL, REMOVED

Constructor Summary

Constructors

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

Method Summary

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

the set of longs

Constructor Detail

TLongHash

public TLongHash()

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

TLongHash

public TLongHash(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TLongHash

public TLongHash(int initialCapacity,
                 float loadFactor)

Creates a new TLongHash 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.

TLongHash

public TLongHash(int initialCapacity,
                 float loadFactor,
                 long no_entry_value)

Creates a new TLongHash 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 long 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(long val)

Searches the set for val

Parameters:

val - an long value

Returns:

a boolean value

forEach

public boolean forEach(TLongProcedure 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.