gnu.trove.list.linked
Class TDoubleLinkedList

java.lang.Object
  gnu.trove.list.linked.TDoubleLinkedList

All Implemented Interfaces:

TDoubleList, TDoubleCollection, java.io.Externalizable, java.io.Serializable

public class TDoubleLinkedList
extends java.lang.Object
implements TDoubleList, java.io.Externalizable

A resizable, double linked list of double primitives.

See Also:

Serialized Form

Field Summary

Fields inherited from interface gnu.trove.TDoubleCollection

serialVersionUID

Constructor Summary

TDoubleLinkedList()

TDoubleLinkedList(double no_entry_value)

TDoubleLinkedList(TDoubleList list)

Method Summary

boolean	add(double val) Adds val to the end of the list, growing as needed.
void	add(double[] vals) Adds the values in the array vals to the end of the list, in order.
void	add(double[] vals, int offset, int length) Adds a subset of the values in the array vals to the end of the list, in order.
boolean	addAll(java.util.Collection<? extends java.lang.Double> collection) Adds all of the elements in collection to the collection.
boolean	addAll(double[] array) Adds all of the elements in the array to the collection.
boolean	addAll(TDoubleCollection collection) Adds all of the elements in the TDoubleCollection to the collection.
int	binarySearch(double value) Performs a binary search for value in the entire list.
int	binarySearch(double value, int fromIndex, int toIndex) Performs a binary search for value in the specified range.
void	clear() Flushes the internal state of the list, resetting the capacity to the default.
boolean	contains(double value) Searches the list for value
boolean	containsAll(java.util.Collection<?> collection) Tests the collection to determine if all of the elements in collection are present.
boolean	containsAll(double[] array) Tests the collection to determine if all of the elements in array are present.
boolean	containsAll(TDoubleCollection collection) Tests the collection to determine if all of the elements in TDoubleCollection are present.
boolean	equals(java.lang.Object o) Compares the specified object with this collection for equality.
void	fill(double val) Fills every slot in the list with the specified value.
void	fill(int fromIndex, int toIndex, double val) Fills a range in the list with the specified value.
boolean	forEach(TDoubleProcedure procedure) Applies the procedure to each value in the list in ascending (front to back) order.
boolean	forEachDescending(TDoubleProcedure procedure) Applies the procedure to each value in the list in descending (back to front) order.
double	get(int offset) Returns the value at the specified offset.
gnu.trove.list.linked.TDoubleLinkedList.TDoubleLink	getLinkAt(int offset) Returns the link at the given offset.
double	getNoEntryValue() Returns the value that is used to represent null.
TDoubleList	grep(TDoubleProcedure condition) Searches the list for values satisfying condition in the manner of the *nix grep utility.
int	hashCode() Returns the hash code value for this collection.
int	indexOf(double value) Searches the list front to back for the index of value.
int	indexOf(int offset, double value) Searches the list front to back for the index of value, starting at offset.
void	insert(int offset, double value) Inserts value into the list at offset.
void	insert(int offset, double[] values) Inserts the array of values into the list at offset.
void	insert(int offset, double[] values, int valOffset, int len) Inserts a slice of the array of values into the list at offset.
TDoubleList	inverseGrep(TDoubleProcedure condition) Searches the list for values which do not satisfy condition.
boolean	isEmpty() Tests whether this list contains any values.
TDoubleIterator	iterator() Creates an iterator over the values of the collection.
int	lastIndexOf(double value) Searches the list back to front for the last index of value.
int	lastIndexOf(int offset, double value) Searches the list back to front for the last index of value, starting at offset.
double	max() Finds the maximum value in the list.
double	min() Finds the minimum value in the list.
void	readExternal(java.io.ObjectInput in)
boolean	remove(double value) Removes value from the list.
void	remove(int offset, int length) Removes length values from the list, starting at offset
boolean	removeAll(java.util.Collection<?> collection) Removes all of the elements in collection from the collection.
boolean	removeAll(double[] array) Removes all of the elements in array from the collection.
boolean	removeAll(TDoubleCollection collection) Removes all of the elements in TDoubleCollection from the collection.
double	removeAt(int offset) Removes value at a given offset from the list.
double	replace(int offset, double val) Sets the value at the specified offset and returns the previously stored value.
boolean	retainAll(java.util.Collection<?> collection) Removes any values in the collection which are not contained in collection.
boolean	retainAll(double[] array) Removes any values in the collection which are not contained in array.
boolean	retainAll(TDoubleCollection collection) Removes any values in the collection which are not contained in TDoubleCollection.
void	reverse() Reverse the order of the elements in the list.
void	reverse(int from, int to) Reverse the order of the elements in the range of the list.
double	set(int offset, double val) Sets the value at the specified offset.
void	set(int offset, double[] values) Replace the values in the list starting at offset with the contents of the values array.
void	set(int offset, double[] values, int valOffset, int length) Replace the values in the list starting at offset with length values from the values array, starting at valOffset.
void	shuffle(java.util.Random rand) Shuffle the elements of the list using the specified random number generator.
int	size() Returns the number of values in the list.
void	sort() Sort the values in the list (ascending) using the Sun quicksort implementation.
void	sort(int fromIndex, int toIndex) Sort a slice of the list (ascending) using the Sun quicksort implementation.
TDoubleList	subList(int begin, int end) Returns a sublist of this list.
double	sum() Calculates the sum of all the values in the list.
double[]	toArray() Copies the contents of the list into a native array.
double[]	toArray(double[] dest) Copies a slice of the list into a native array.
double[]	toArray(double[] dest, int offset, int len) Copies a slice of the list into a native array.
double[]	toArray(double[] dest, int source_pos, int dest_pos, int len) Copies a slice of the list into a native array.
double[]	toArray(int offset, int len) Copies a slice of the list into a native array.
java.lang.String	toString()
void	transformValues(TDoubleFunction function) Transform each value in the list using the specified function.
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TDoubleLinkedList

public TDoubleLinkedList()

TDoubleLinkedList

public TDoubleLinkedList(double no_entry_value)

TDoubleLinkedList

public TDoubleLinkedList(TDoubleList list)

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.

Specified by:

getNoEntryValue in interface TDoubleList

Specified by:

getNoEntryValue in interface TDoubleCollection

Returns:

the value that represents null

size

public int size()

Returns the number of values in the list.

Specified by:

size in interface TDoubleList

Specified by:

size in interface TDoubleCollection

Returns:

the number of values in the list.

isEmpty

public boolean isEmpty()

Tests whether this list contains any values.

Specified by:

isEmpty in interface TDoubleList

Specified by:

isEmpty in interface TDoubleCollection

Returns:

true if the list is empty.

add

public boolean add(double val)

Adds val to the end of the list, growing as needed.

Specified by:

add in interface TDoubleList

Specified by:

add in interface TDoubleCollection

Parameters:

val - an double value

Returns:

true if the list was modified by the add operation

add

public void add(double[] vals)

Adds the values in the array vals to the end of the list, in order.

Specified by:

add in interface TDoubleList

Parameters:

vals - an double[] value

add

public void add(double[] vals,
                int offset,
                int length)

Adds a subset of the values in the array vals to the end of the list, in order.

Specified by:

add in interface TDoubleList

Parameters:

vals - an double[] value

offset - the offset at which to start copying

length - the number of values to copy.

insert

public void insert(int offset,
                   double value)

Inserts value into the list at offset. All values including and to the right of offset are shifted to the right.

Specified by:

insert in interface TDoubleList

Parameters:

offset - an int value

value - an double value

insert

public void insert(int offset,
                   double[] values)

Inserts the array of values into the list at offset. All values including and to the right of offset are shifted to the right.

Specified by:

insert in interface TDoubleList

Parameters:

offset - an int value

values - an double[] value

insert

public void insert(int offset,
                   double[] values,
                   int valOffset,
                   int len)

Inserts a slice of the array of values into the list at offset. All values including and to the right of offset are shifted to the right.

Specified by:

insert in interface TDoubleList

Parameters:

offset - an int value

values - an double[] value

valOffset - the offset in the values array at which to start copying.

len - the number of values to copy from the values array

get

public double get(int offset)

Returns the value at the specified offset.

Specified by:

get in interface TDoubleList

Parameters:

offset - an int value

Returns:

an double value

getLinkAt

public gnu.trove.list.linked.TDoubleLinkedList.TDoubleLink getLinkAt(int offset)

Returns the link at the given offset.

A simple bisection criteria is used to keep the worst case complexity equal to O(n/2) where n = size(). Simply start from head of list or tail depending on offset and list size.

Parameters:

offset - of the link

Returns:

link or null if non-existent

set

public double set(int offset,
                  double val)

Sets the value at the specified offset.

Specified by:

set in interface TDoubleList

Parameters:

offset - an int value

val - an double value

Returns:

The value previously at the given index.

set

public void set(int offset,
                double[] values)

Replace the values in the list starting at offset with the contents of the values array.

Specified by:

set in interface TDoubleList

Parameters:

offset - the first offset to replace

values - the source of the new values

set

public void set(int offset,
                double[] values,
                int valOffset,
                int length)

Replace the values in the list starting at offset with length values from the values array, starting at valOffset.

Specified by:

set in interface TDoubleList

Parameters:

offset - the first offset to replace

values - the source of the new values

valOffset - the first value to copy from the values array

length - the number of values to copy

replace

public double replace(int offset,
                      double val)

Sets the value at the specified offset and returns the previously stored value.

Specified by:

replace in interface TDoubleList

Parameters:

offset - an int value

val - an double value

Returns:

the value previously stored at offset.

clear

public void clear()

Flushes the internal state of the list, resetting the capacity to the default.

Specified by:

clear in interface TDoubleList

Specified by:

clear in interface TDoubleCollection

remove

public boolean remove(double value)

Removes value from the list.

Specified by:

remove in interface TDoubleList

Specified by:

remove in interface TDoubleCollection

Parameters:

value - an double value

Returns:

true if the list was modified by the remove operation.

containsAll

public boolean containsAll(java.util.Collection<?> collection)

Tests the collection to determine if all of the elements in collection are present.

Specified by:

containsAll in interface TDoubleCollection

Parameters:

collection - a Collection value

Returns:

true if all elements were present in the collection.

containsAll

public boolean containsAll(TDoubleCollection collection)

Tests the collection to determine if all of the elements in TDoubleCollection are present.

Specified by:

containsAll in interface TDoubleCollection

Parameters:

collection - a TDoubleCollection value

Returns:

true if all elements were present in the collection.

containsAll

public boolean containsAll(double[] array)

Tests the collection to determine if all of the elements in array are present.

Specified by:

containsAll in interface TDoubleCollection

Parameters:

array - as array of double primitives.

Returns:

true if all elements were present in the collection.

addAll

public boolean addAll(java.util.Collection<? extends java.lang.Double> collection)

Adds all of the elements in collection to the collection.

Specified by:

addAll in interface TDoubleCollection

Parameters:

collection - a Collection value

Returns:

true if the collection was modified by the add all operation.

addAll

public boolean addAll(TDoubleCollection collection)

Adds all of the elements in the TDoubleCollection to the collection.

Specified by:

addAll in interface TDoubleCollection

Parameters:

collection - a TDoubleCollection value

Returns:

true if the collection was modified by the add all operation.

addAll

public boolean addAll(double[] array)

Adds all of the elements in the array to the collection.

Specified by:

addAll in interface TDoubleCollection

Parameters:

array - a array of double primitives.

Returns:

true if the collection was modified by the add all operation.

retainAll

public boolean retainAll(java.util.Collection<?> collection)

Removes any values in the collection which are not contained in collection.

Specified by:

retainAll in interface TDoubleCollection

Parameters:

collection - a Collection value

Returns:

true if the collection was modified by the retain all operation

retainAll

public boolean retainAll(TDoubleCollection collection)

Removes any values in the collection which are not contained in TDoubleCollection.

Specified by:

retainAll in interface TDoubleCollection

Parameters:

collection - a TDoubleCollection value

Returns:

true if the collection was modified by the retain all operation

retainAll

public boolean retainAll(double[] array)

Removes any values in the collection which are not contained in array.

Specified by:

retainAll in interface TDoubleCollection

Parameters:

array - an array of double primitives.

Returns:

true if the collection was modified by the retain all operation

removeAll

public boolean removeAll(java.util.Collection<?> collection)

Removes all of the elements in collection from the collection.

Specified by:

removeAll in interface TDoubleCollection

Parameters:

collection - a Collection value

Returns:

true if the collection was modified by the remove all operation.

removeAll

public boolean removeAll(TDoubleCollection collection)

Removes all of the elements in TDoubleCollection from the collection.

Specified by:

removeAll in interface TDoubleCollection

Parameters:

collection - a TDoubleCollection value

Returns:

true if the collection was modified by the remove all operation.

removeAll

public boolean removeAll(double[] array)

Removes all of the elements in array from the collection.

Specified by:

removeAll in interface TDoubleCollection

Parameters:

array - an array of double primitives.

Returns:

true if the collection was modified by the remove all operation.

removeAt

public double removeAt(int offset)

Removes value at a given offset from the list.

Specified by:

removeAt in interface TDoubleList

Parameters:

offset - an int value that represents the offset to the element to be removed

Returns:

an double that is the value removed.

remove

public void remove(int offset,
                   int length)

Removes length values from the list, starting at offset

Specified by:

remove in interface TDoubleList

Parameters:

offset - an int value

length - an int value

transformValues

public void transformValues(TDoubleFunction function)

Transform each value in the list using the specified function.

Specified by:

transformValues in interface TDoubleList

Parameters:

function - a TDoubleFunction value

reverse

public void reverse()

Reverse the order of the elements in the list.

Specified by:

reverse in interface TDoubleList

reverse

public void reverse(int from,
                    int to)

Reverse the order of the elements in the range of the list.

Specified by:

reverse in interface TDoubleList

Parameters:

from - the inclusive index at which to start reversing

to - the exclusive index at which to stop reversing

shuffle

public void shuffle(java.util.Random rand)

Shuffle the elements of the list using the specified random number generator.

Specified by:

shuffle in interface TDoubleList

Parameters:

rand - a Random value

subList

public TDoubleList subList(int begin,
                           int end)

Returns a sublist of this list.

Specified by:

subList in interface TDoubleList

Parameters:

begin - low endpoint (inclusive) of the subList.

end - high endpoint (exclusive) of the subList.

Returns:

sublist of this list from begin, inclusive to end, exclusive.

toArray

public double[] toArray()

Copies the contents of the list into a native array.

Specified by:

toArray in interface TDoubleList

Specified by:

toArray in interface TDoubleCollection

Returns:

an double[] value

toArray

public double[] toArray(int offset,
                        int len)

Copies a slice of the list into a native array.

Specified by:

toArray in interface TDoubleList

Parameters:

offset - the offset at which to start copying

len - the number of values to copy.

Returns:

an double[] value

toArray

public double[] toArray(double[] dest)

Copies a slice of the list into a native array.

If the list fits in the specified array with room to spare (i.e., the array has more elements than the list), the element in the array immediately following the end of the list is set to TDoubleList.getNoEntryValue(). (This is useful in determining the length of the list only if the caller knows that the list does not contain any "null" elements.)

NOTE: Trove does not allocate a new array if the array passed in is not large enough to hold all of the data elements. It will instead fill the array passed in.

Specified by:

toArray in interface TDoubleList

Specified by:

toArray in interface TDoubleCollection

Parameters:

dest - the array to copy into.

Returns:

the array passed in.

toArray

public double[] toArray(double[] dest,
                        int offset,
                        int len)

Copies a slice of the list into a native array.

Specified by:

toArray in interface TDoubleList

Parameters:

dest - the array to copy into.

offset - the offset where the first value should be copied

len - the number of values to copy.

Returns:

the array passed in.

toArray

public double[] toArray(double[] dest,
                        int source_pos,
                        int dest_pos,
                        int len)

Copies a slice of the list into a native array.

Specified by:

toArray in interface TDoubleList

Parameters:

dest - the array to copy into.

source_pos - the offset of the first value to copy

dest_pos - the offset where the first value should be copied

len - the number of values to copy.

Returns:

the array passed in.

forEach

public boolean forEach(TDoubleProcedure procedure)

Applies the procedure to each value in the list in ascending (front to back) order.

Specified by:

forEach in interface TDoubleList

Specified by:

forEach in interface TDoubleCollection

Parameters:

procedure - a TDoubleProcedure value

Returns:

true if the procedure did not terminate prematurely.

forEachDescending

public boolean forEachDescending(TDoubleProcedure procedure)

Applies the procedure to each value in the list in descending (back to front) order.

Specified by:

forEachDescending in interface TDoubleList

Parameters:

procedure - a TDoubleProcedure value

Returns:

true if the procedure did not terminate prematurely.

sort

public void sort()

Sort the values in the list (ascending) using the Sun quicksort implementation.

Specified by:

sort in interface TDoubleList

See Also:

Arrays.sort(long[])

sort

public void sort(int fromIndex,
                 int toIndex)

Sort a slice of the list (ascending) using the Sun quicksort implementation.

Specified by:

sort in interface TDoubleList

Parameters:

fromIndex - the index at which to start sorting (inclusive)

toIndex - the index at which to stop sorting (exclusive)

See Also:

Arrays.sort(long[])

fill

public void fill(double val)

Fills every slot in the list with the specified value.

Specified by:

fill in interface TDoubleList

Parameters:

val - the value to use when filling

fill

public void fill(int fromIndex,
                 int toIndex,
                 double val)

Fills a range in the list with the specified value.

Specified by:

fill in interface TDoubleList

Parameters:

fromIndex - the offset at which to start filling (inclusive)

toIndex - the offset at which to stop filling (exclusive)

val - the value to use when filling

binarySearch

public int binarySearch(double value)

Performs a binary search for value in the entire list. Note that you must @{link #sort sort} the list before doing a search.

Specified by:

binarySearch in interface TDoubleList

Parameters:

value - the value to search for

Returns:

the absolute offset in the list of the value, or its negative insertion point into the sorted list.

binarySearch

public int binarySearch(double value,
                        int fromIndex,
                        int toIndex)

Performs a binary search for value in the specified range. Note that you must @{link #sort sort} the list or the range before doing a search.

Specified by:

binarySearch in interface TDoubleList

Parameters:

value - the value to search for

fromIndex - the lower boundary of the range (inclusive)

toIndex - the upper boundary of the range (exclusive)

Returns:

the absolute offset in the list of the value, or its negative insertion point into the sorted list.

indexOf

public int indexOf(double value)

Searches the list front to back for the index of value.

Specified by:

indexOf in interface TDoubleList

Parameters:

value - an double value

Returns:

the first offset of the value, or -1 if it is not in the list.

See Also:

for faster searches on sorted lists

indexOf

public int indexOf(int offset,
                   double value)

Searches the list front to back for the index of value, starting at offset.

Specified by:

indexOf in interface TDoubleList

Parameters:

offset - the offset at which to start the linear search (inclusive)

value - an double value

Returns:

the first offset of the value, or -1 if it is not in the list.

See Also:

for faster searches on sorted lists

lastIndexOf

public int lastIndexOf(double value)

Searches the list back to front for the last index of value.

Specified by:

lastIndexOf in interface TDoubleList

Parameters:

value - an double value

Returns:

the last offset of the value, or -1 if it is not in the list.

See Also:

for faster searches on sorted lists

lastIndexOf

public int lastIndexOf(int offset,
                       double value)

Searches the list back to front for the last index of value, starting at offset.

Specified by:

lastIndexOf in interface TDoubleList

Parameters:

offset - the offset at which to start the linear search (exclusive)

value - an double value

Returns:

the last offset of the value, or -1 if it is not in the list.

See Also:

for faster searches on sorted lists

contains

public boolean contains(double value)

Searches the list for value

Specified by:

contains in interface TDoubleList

Specified by:

contains in interface TDoubleCollection

Parameters:

value - an double value

Returns:

true if value is in the list.

iterator

public TDoubleIterator iterator()

Creates an iterator over the values of the collection. The iterator supports element deletion.

Specified by:

iterator in interface TDoubleCollection

Returns:

an TDoubleIterator value

grep

public TDoubleList grep(TDoubleProcedure condition)

Searches the list for values satisfying condition in the manner of the *nix grep utility.

Specified by:

grep in interface TDoubleList

Parameters:

condition - a condition to apply to each element in the list

Returns:

a list of values which match the condition.

inverseGrep

public TDoubleList inverseGrep(TDoubleProcedure condition)

Searches the list for values which do not satisfy condition. This is akin to *nix grep -v.

Specified by:

inverseGrep in interface TDoubleList

Parameters:

condition - a condition to apply to each element in the list

Returns:

a list of values which do not match the condition.

max

public double max()

Finds the maximum value in the list.

Specified by:

max in interface TDoubleList

Returns:

the largest value in the list.

min

public double min()

Finds the minimum value in the list.

Specified by:

min in interface TDoubleList

Returns:

the smallest value in the list.

sum

public double sum()

Calculates the sum of all the values in the list.

Specified by:

sum in interface TDoubleList

Returns:

the sum of the values in the list (zero if the list is empty).

writeExternal

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

Specified by:

writeExternal in interface java.io.Externalizable

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

Throws:

java.io.IOException

java.lang.ClassNotFoundException

equals

public boolean equals(java.lang.Object o)

Description copied from interface: TDoubleCollection

Compares the specified object with this collection for equality. Returns true if the specified object is also a collection, the two collection have the same size, and every member of the specified collection is contained in this collection (or equivalently, every member of this collection is contained in the specified collection). This definition ensures that the equals method works properly across different implementations of the collection interface.

Specified by:

equals in interface TDoubleCollection

Overrides:

equals in class java.lang.Object

Parameters:

o - object to be compared for equality with this collection

Returns:

true if the specified object is equal to this collection

hashCode

public int hashCode()

Description copied from interface: TDoubleCollection

Returns the hash code value for this collection. The hash code of a collection is defined to be the sum of the hash codes of the elements in the collection. This ensures that s1.equals(s2) implies that s1.hashCode()==s2.hashCode() for any two collection s1 and s2, as required by the general contract of Object.hashCode().

Specified by:

hashCode in interface TDoubleCollection

Overrides:

hashCode in class java.lang.Object

Returns:

the hash code value for this collection

See Also:

Object.equals(Object), Collection.equals(Object)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object