public class XIntIndexedList extends XIntCollectionBase implements XIntList, RandomAccess
This class represents a random access collection with real-time behavior (smooth capacity increase) for a primitivive list of ints
This class has the following advantages over the widely used
java.util.ArrayList:
int
and Long.shared. Iterations over the XIntIndexedList values are faster when
performed using the get(int) method rather than using collection
records or iterators:[code]
for (int i = 0, n = list.size(); i < n; i++) {
list.get(i);
}[/code]
This class was based on collections code from http://javolution.org, but modified for use outside of realtime jvms.
| Constructor and Description |
|---|
XIntIndexedList()
Creates a list of small initial capacity.
|
XIntIndexedList(int capacity)
Creates a list of specified initial capacity; unless the list size
reaches the specified capacity, operations on this list will not
allocate memory (no lazy object creation).
|
XIntIndexedList(XIntCollection values)
Creates a list containing the specified values, in the order they
are returned by the collection's iterator.
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
add(int value)
Appends the specified value to the end of this list.
|
void |
add(int index,
int value)
Inserts the specified value at the specified position in this list.
|
boolean |
addAll(int index,
XIntCollection values)
Inserts all of the values in the specified collection into this
list at the specified position.
|
void |
addLast(int value)
Appends the specified value to the end of this list (fast).
|
void |
clear()
Removes all of the values from this collection (optional operation).
|
boolean |
contains(int value)
Indicates if this collection contains the specified value.
|
void |
delete(XCollection.Record record)
Deletes the specified record from this collection.
|
int |
get(int index)
Returns the element at the specified index.
|
int |
getFirst()
Returns the first value of this list.
|
int |
getLast()
Returns the last value of this list.
|
XCollection.Record |
head()
Returns the head record of this collection; it is the record such as
head().getNext() holds the first collection value. |
int |
indexOf(int value)
Returns the index in this list of the first occurrence of the specified
value, or -1 if this list does not contain this value.
|
XIntIterator |
iterator()
Returns an iterator over the elements in this list
|
int |
lastIndexOf(int value)
Returns the index in this list of the last occurrence of the specified
value, or -1 if this list does not contain this value.
|
XIntListIterator |
listIterator()
Returns a list iterator over the elements in this list
|
XIntListIterator |
listIterator(int index)
Returns a list iterator from the specified position
|
static XIntIndexedList |
newInstance()
Returns a new, preallocated or recycled
XIntIndexedList instance |
int |
removeIndex(int index)
Removes the value at the specified position from this list.
|
int |
removeLast()
Removes and returns the last value of this list (fast).
|
void |
removeRange(int fromIndex,
int toIndex)
Removes the values between
[fromIndex..toIndex[ |
void |
reset() |
int |
set(int index,
int value)
Replaces the value at the specified position in this list with the
specified value.
|
void |
setSize(int size)
Sets the size of this list.
|
int |
size()
Returns the number of values in this collection.
|
void |
sort(boolean ascending) |
XIntList |
subList(int fromIndex,
int toIndex)
Returns a view of the portion of this list between the specified
If the specified indexes are equal, the returned list is empty.
|
XCollection.Record |
tail()
Returns the tail record of this collection; it is the record such as
tail().getPrevious() holds the last collection value. |
void |
trimToSize()
Reduces the capacity of this list to the current size (minimize
storage space).
|
XIntList |
unmodifiable()
Returns the unmodifiable view associated to this collection.
|
int |
valueOf(XCollection.Record record)
Returns the collection value for the specified record.
|
addAll, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, reusableIterator, shared, supportsIteratorModifications, toArray, toArray, toStringaddAll, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, toArray, toArrayreusableIterator, shared, supportsIteratorModificationspublic XIntIndexedList()
public XIntIndexedList(int capacity)
capacity - the initial capacity.public XIntIndexedList(XIntCollection values)
values - the values to be placed into this list.public static XIntIndexedList newInstance()
XIntIndexedList instanceXIntIndexedList instance.public void setSize(int size)
null elements are added; otherwise
the last elements are removed until the desired size is reached.size - the new size.public final int get(int index)
get in interface XIntListindex - index of value to return.IndexOutOfBoundsException - if (index < 0) ||
(index >= size())public final int set(int index,
int value)
set in interface XIntListindex - index of value to replace.value - value to be stored at the specified position.IndexOutOfBoundsException - if (index < 0) ||
(index >= size())public final boolean add(int value)
add in interface XIntCollectionadd in interface XIntListadd in class XIntCollectionBasevalue - the value to be appended to this list.true (as per the general contract of the
Collection.add method).public final int getFirst()
NoSuchElementException - if this list is empty.public final int getLast()
NoSuchElementException - if this list is empty.public final void addLast(int value)
value - the value to be added.public final int removeLast()
NoSuchElementException - if this list is empty.public final void clear()
XIntCollectionBaseclear in interface XIntCollectionclear in interface XIntListclear in class XIntCollectionBasepublic void reset()
public final boolean addAll(int index,
XIntCollection values)
Note: If this method is used concurrent access must be synchronized (the list is no more thread-safe).
addAll in interface XIntListindex - the index at which to insert first value from the specified
collection.values - the values to be inserted into this list.true if this list changed as a result of the call;
false otherwise.IndexOutOfBoundsException - if (index < 0) ||
(index > size())public final void add(int index,
int value)
Note: If this method is used concurrent access must be synchronized (the list is no more thread-safe).
add in interface XIntListindex - the index at which the specified value is to be inserted.value - the value to be inserted.IndexOutOfBoundsException - if (index < 0) ||
(index > size())public final int removeIndex(int index)
Note: If this method is used concurrent access must be synchronized (the list is no more thread-safe).
removeIndex in interface XIntListindex - the index of the value to removed.IndexOutOfBoundsException - if (index < 0) ||
(index >= size())public final void removeRange(int fromIndex,
int toIndex)
[fromIndex..toIndex[ from
this list.
Note: If this method is used concurrent access must be synchronized
(the list is no more thread-safe).
fromIndex - the beginning index, inclusive.toIndex - the ending index, exclusive.IndexOutOfBoundsException - if (fromIndex < 0) || (toIndex < 0)
|| (fromIndex > toIndex) || (toIndex > this.size())public final int indexOf(int value)
public final int lastIndexOf(int value)
lastIndexOf in interface XIntListvalue - the value to search for.public XIntIterator iterator()
iterator in interface XIntCollectioniterator in interface XIntListiterator in class XIntCollectionBasepublic XIntListIterator listIterator()
listIterator in interface XIntListpublic XIntListIterator listIterator(int index)
listIterator in interface XIntListindex - the index of first value to be returned from the
list iterator (by a call to the next method).IndexOutOfBoundsException - if the index is out of range
[code](index < 0 || index > size())[/code]public final XIntList subList(int fromIndex, int toIndex)
indexOf and
lastIndexOf, and all of the algorithms in the
Collections class can be applied to a subList.
The semantics of the list returned by this method become undefined if
the backing list (i.e., this list) is structurally modified in
any way other than via the returned list (structural modifications are
those that change the size of this list, or otherwise perturb it in such
a fashion that iterations in progress may yield incorrect results).subList in interface XIntListfromIndex - low endpoint (inclusive) of the subList.toIndex - high endpoint (exclusive) of the subList.IndexOutOfBoundsException - if [code](fromIndex < 0 ||
toIndex > size || fromIndex > toIndex)[/code]public final void trimToSize()
public void sort(boolean ascending)
public final int size()
XIntCollectionBasesize in interface XIntCollectionsize in interface XIntListsize in class XIntCollectionBasepublic final XCollection.Record head()
XIntCollectionBasehead().getNext() holds the first collection value.head in interface XIntCollectionhead in class XIntCollectionBasepublic final XCollection.Record tail()
XIntCollectionBasetail().getPrevious() holds the last collection value.tail in interface XIntCollectiontail in class XIntCollectionBasepublic final int valueOf(XCollection.Record record)
XIntCollectionBasevalueOf in interface XIntCollectionvalueOf in class XIntCollectionBaserecord - the record whose current value is returned.public final void delete(XCollection.Record record)
XIntCollectionBaseImplementation must ensure that removing a record from the collection does not affect in any way the records preceding the record being removed (it might affect the next records though, e.g. in a list collection, the indices of the subsequent records will change).
delete in interface XIntCollectiondelete in class XIntCollectionBaserecord - the record to be removed.public XIntList unmodifiable()
XIntCollectionBaseUnsupportedOperationException being thrown.unmodifiable in interface XIntCollectionunmodifiable in class XIntCollectionBasepublic final boolean contains(int value)
XIntCollectionBasecontains in interface XIntCollectioncontains in interface XIntListcontains in class XIntCollectionBasevalue - the value whose presence in this collection
is to be tested.true if this collection contains the specified
value;false otherwise.Copyright © 2019 Neeve Research, LLC. All Rights Reserved.