gnu.trove.impl.hash

Class TDoubleFloatHash

java.lang.Object

gnu.trove.impl.hash.THash

gnu.trove.impl.hash.TPrimitiveHash

gnu.trove.impl.hash.TDoubleFloatHash

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable

Direct Known Subclasses:

TDoubleFloatHashMap

public abstract class TDoubleFloatHash
extends TPrimitiveHash

An open addressed hashing implementation for double/float primitive entries. 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
TDoubleFloatHash() Creates a new T#E#Hash instance with the default capacity and load factor.
TDoubleFloatHash(int initialCapacity) Creates a new T#E#Hash instance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.
TDoubleFloatHash(int initialCapacity, float loadFactor) Creates a new TDoubleFloatHash instance with a prime value at or near the specified capacity and load factor.
TDoubleFloatHash(int initialCapacity, float loadFactor, double no_entry_key, float no_entry_value) Creates a new TDoubleFloatHash 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 key in the map.
double	getNoEntryKey() Returns the value that is used to represent null as a key.
float	getNoEntryValue() Returns the value that is used to represent null.
void	readExternal(java.io.ObjectInput in)
void	writeExternal(java.io.ObjectOutput out)

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

capacity

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

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

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

TDoubleFloatHash

public TDoubleFloatHash()

Creates a new T#E#Hash instance with the default capacity and load factor.

TDoubleFloatHash

public TDoubleFloatHash(int initialCapacity)

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

Parameters:

initialCapacity - an int value

TDoubleFloatHash

public TDoubleFloatHash(int initialCapacity,
                        float loadFactor)

Creates a new TDoubleFloatHash 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.

TDoubleFloatHash

public TDoubleFloatHash(int initialCapacity,
                        float loadFactor,
                        double no_entry_key,
                        float no_entry_value)

Creates a new TDoubleFloatHash 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

getNoEntryKey

public double getNoEntryKey()

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

Returns:

the value that represents null

getNoEntryValue

public float 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 key in the map.

Parameters:

procedure - a TDoubleProcedure value

Returns:

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

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class THash

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Overrides:

readExternal in class THash

Throws:

java.io.IOException

java.lang.ClassNotFoundException