FloatArrayDeque (HPPC v0.7.3 API Documentation)

java.lang.Object
- com.carrotsearch.hppc.FloatArrayDeque

All Implemented Interfaces:: FloatCollection, FloatContainer, FloatDeque, Preallocable, java.lang.Cloneable, java.lang.Iterable<FloatCursor>

@Generated(date="2017-10-22T12:19:53+0200",
           value="KTypeArrayDeque.java")
public class FloatArrayDeque
extends java.lang.Object
implements FloatDeque, Preallocable, java.lang.Cloneable

An array-backed FloatDeque.

Field Summary

Fields
Modifier and Type	Field and Description
`float[]`	`buffer` Internal array for storing elements of the deque.
`int`	`head` The index of the element at the head of the deque or an arbitrary number equal to tail if the deque is empty.
`protected ArraySizingStrategy`	`resizer` Buffer resizing strategy.
`int`	`tail` The index at which the next element would be added to the tail of the deque.

Constructor Summary

Constructors
Constructor and Description
`FloatArrayDeque()` New instance with sane defaults.
`FloatArrayDeque(FloatContainer container)` Creates a new deque from elements of another container, appending elements at the end of the deque in the iteration order.
`FloatArrayDeque(int expectedElements)` New instance with sane defaults.
`FloatArrayDeque(int expectedElements, ArraySizingStrategy resizer)` New instance with sane defaults.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addFirst(float... elements)` Vararg-signature method for adding elements at the front of this deque.
`void`	`addFirst(float e1)` Inserts the specified element at the front of this deque.
`int`	`addFirst(FloatContainer container)` Inserts all elements from the given container to the front of this deque.
`int`	`addFirst(java.lang.Iterable<? extends FloatCursor> iterable)` Inserts all elements from the given iterable to the front of this deque.
`void`	`addLast(float... elements)` Vararg-signature method for adding elements at the end of this deque.
`void`	`addLast(float e1)` Inserts the specified element at the end of this deque.
`int`	`addLast(FloatContainer container)` Inserts all elements from the given container to the end of this deque.
`int`	`addLast(java.lang.Iterable<? extends FloatCursor> iterable)` Inserts all elements from the given iterable to the end of this deque.
`int`	`bufferIndexOf(float e1)` Return the index of the first (counting from head) element equal to `e1`.
`void`	`clear()` Removes all elements from this collection.
`FloatArrayDeque`	`clone()` Clone this object.
`boolean`	`contains(float e)` Lookup a given element in the container.
`<T extends FloatPredicate> T`	`descendingForEach(T predicate)` Applies a `predicate` to container elements as long, as the predicate returns `true`.
`<T extends FloatProcedure> T`	`descendingForEach(T procedure)` Applies `procedure` to all elements of this deque, tail to head.
`java.util.Iterator<FloatCursor>`	`descendingIterator()` Returns a cursor over the values of this deque (in tail to head order).
`protected void`	`ensureBufferSpace(int expectedAdditions)` Ensures the internal buffer has enough free slots to store `expectedAdditions`.
`void`	`ensureCapacity(int expectedElements)` Ensure this container can hold at least the given number of elements without resizing its buffers.
`protected boolean`	`equalElements(FloatArrayDeque other)` Compare order-aligned elements against another `FloatDeque`.
`boolean`	`equals(java.lang.Object obj)` Returns `true` only if the other object is an instance of the same class and with the same elements.
`<T extends FloatPredicate> T`	`forEach(T predicate)` Applies a `predicate` to container elements as long, as the predicate returns `true`.
`<T extends FloatProcedure> T`	`forEach(T procedure)` Applies a `procedure` to all container elements.
`static FloatArrayDeque`	`from(float... elements)` Create a new deque by pushing a variable number of arguments to the end of it.
`float`	`getFirst()` Retrieves the first element of this deque but does not remove it.
`float`	`getLast()` Retrieves the last element of this deque but does not remove it.
`int`	`hashCode()`
`boolean`	`isEmpty()` Shortcut for `size() == 0`.
`java.util.Iterator<FloatCursor>`	`iterator()` Returns a cursor over the values of this deque (in head to tail order).
`int`	`lastBufferIndexOf(float e1)` Return the index of the last (counting from tail) element equal to `e1`.
`protected static int`	`oneLeft(int index, int modulus)` Move one index to the left, wrapping around buffer.
`protected static int`	`oneRight(int index, int modulus)` Move one index to the right, wrapping around buffer.
`void`	`release()` Release internal buffers of this deque and reallocate with the default buffer.
`int`	`removeAll(float e1)` Removes all occurrences of `e` from this collection.
`int`	`removeAll(FloatLookupContainer c)` Default implementation uses a predicate for removal.
`int`	`removeAll(FloatPredicate predicate)` Removes all elements in this collection for which the given predicate returns `true`.
`void`	`removeAtBufferIndex(int index)` Removes the element at `index` in the internal {#link `buffer` array, returning its value.
`float`	`removeFirst()` Retrieves and removes the first element of this deque.
`int`	`removeFirst(float e1)` Removes the first element that equals `e`.
`float`	`removeLast()` Retrieves and removes the last element of this deque.
`int`	`removeLast(float e1)` Removes the last element that equals `e`.
`int`	`retainAll(FloatLookupContainer c)` Default implementation uses a predicate for retaining.
`int`	`retainAll(FloatPredicate predicate)` Default implementation redirects to `FloatCollection.removeAll(FloatPredicate)` and negates the predicate.
`int`	`size()` Return the current number of elements in this container.
`float[]`	`toArray()` Default implementation of copying to an array.
`float[]`	`toArray(float[] target)` Copies elements of this deque to an array.
`java.lang.String`	`toString()` Convert the contents of this container to a human-friendly string.

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.carrotsearch.hppc.FloatCollection
removeAll, retainAll, retainAll

- Field Detail
  - buffer
```
public float[] buffer
```
    Internal array for storing elements of the deque.
  - head
```
public int head
```
    The index of the element at the head of the deque or an arbitrary number equal to tail if the deque is empty.
  - tail
```
public int tail
```
    The index at which the next element would be added to the tail of the deque.
  - resizer
```
protected final ArraySizingStrategy resizer
```
    Buffer resizing strategy.
- Constructor Detail
  - FloatArrayDeque
```
public FloatArrayDeque()
```
    New instance with sane defaults.
  - FloatArrayDeque
```
public FloatArrayDeque(int expectedElements)
```
    New instance with sane defaults.
    
    Parameters:
    expectedElements - The expected number of elements guaranteed not to cause buffer expansion (inclusive).
  - FloatArrayDeque
```
public FloatArrayDeque(int expectedElements,
               ArraySizingStrategy resizer)
```
    New instance with sane defaults.
    
    Parameters:
    expectedElements - The expected number of elements guaranteed not to cause buffer expansion (inclusive).
    resizer - Underlying buffer sizing strategy.
  - FloatArrayDeque
```
public FloatArrayDeque(FloatContainer container)
```
    Creates a new deque from elements of another container, appending elements at the end of the deque in the iteration order.
- Method Detail
  - addFirst
```
public void addFirst(float e1)
```
    Inserts the specified element at the front of this deque.
    
    Specified by:
    
    addFirst in interface FloatDeque
  - addFirst
```
public final void addFirst(float... elements)
```
    Vararg-signature method for adding elements at the front of this deque.
    This method is handy, but costly if used in tight loops (anonymous array passing)
    
    Parameters:
    elements - The elements to add.
  - addFirst
```
public int addFirst(FloatContainer container)
```
    Inserts all elements from the given container to the front of this deque.
    
    Parameters:
    container - The container to iterate over.
    
    Returns:
    Returns the number of elements actually added as a result of this call.
  - addFirst
```
public int addFirst(java.lang.Iterable<? extends FloatCursor> iterable)
```
    Inserts all elements from the given iterable to the front of this deque.
    
    Parameters:
    iterable - The iterable to iterate over.
    
    Returns:
    Returns the number of elements actually added as a result of this call.
  - addLast
```
public void addLast(float e1)
```
    Inserts the specified element at the end of this deque.
    
    Specified by:
    
    addLast in interface FloatDeque
  - addLast
```
public final void addLast(float... elements)
```
    Vararg-signature method for adding elements at the end of this deque.
    This method is handy, but costly if used in tight loops (anonymous array passing)
    
    Parameters:
    elements - The elements to iterate over.
  - addLast
```
public int addLast(FloatContainer container)
```
    Inserts all elements from the given container to the end of this deque.
    
    Parameters:
    container - The container to iterate over.
    
    Returns:
    Returns the number of elements actually added as a result of this call.
  - addLast
```
public int addLast(java.lang.Iterable<? extends FloatCursor> iterable)
```
    Inserts all elements from the given iterable to the end of this deque.
    
    Parameters:
    iterable - The iterable to iterate over.
    
    Returns:
    Returns the number of elements actually added as a result of this call.
  - removeFirst
```
public float removeFirst()
```
    Retrieves and removes the first element of this deque.
    
    Specified by:
    
    removeFirst in interface FloatDeque
    
    Returns:
    the head (first) element of this deque.
  - removeLast
```
public float removeLast()
```
    Retrieves and removes the last element of this deque.
    
    Specified by:
    
    removeLast in interface FloatDeque
    
    Returns:
    the tail of this deque.
  - getFirst
```
public float getFirst()
```
    Retrieves the first element of this deque but does not remove it.
    
    Specified by:
    
    getFirst in interface FloatDeque
    
    Returns:
    the head of this deque.
  - getLast
```
public float getLast()
```
    Retrieves the last element of this deque but does not remove it.
    
    Specified by:
    
    getLast in interface FloatDeque
    
    Returns:
    the head of this deque.
  - removeFirst
```
public int removeFirst(float e1)
```
    Removes the first element that equals e.
    
    Specified by:
    
    removeFirst in interface FloatDeque
    
    Returns:
    The deleted element's index or -1 if the element was not found.
  - bufferIndexOf
```
public int bufferIndexOf(float e1)
```
    Return the index of the first (counting from head) element equal to e1. The index points to the buffer array.
    
    Parameters:
    e1 - The element to look for.
    
    Returns:
    Returns the index of the first element equal to e1 or -1 if not found.
  - removeLast
```
public int removeLast(float e1)
```
    Removes the last element that equals e.
    
    Specified by:
    
    removeLast in interface FloatDeque
    
    Returns:
    The deleted element's index or -1 if the element was not found.
  - lastBufferIndexOf
```
public int lastBufferIndexOf(float e1)
```
    Return the index of the last (counting from tail) element equal to e1. The index points to the buffer array.
    
    Parameters:
    e1 - The element to look for.
    
    Returns:
    Returns the index of the first element equal to e1 or -1 if not found.
  - removeAll
```
public int removeAll(float e1)
```
    Removes all occurrences of e from this collection.
    
    Specified by:
    
    removeAll in interface FloatCollection
    
    Parameters:
    e1 - Element to be removed from this collection, if present.
    
    Returns:
    The number of removed elements as a result of this call.
  - removeAtBufferIndex
```
public void removeAtBufferIndex(int index)
```
    Removes the element at index in the internal {#link buffer array, returning its value.
    
    Parameters:
    index - Index of the element to remove. The index must be located between head and tail in modulo buffer arithmetic.
  - isEmpty
```
public boolean isEmpty()
```
    Shortcut for size() == 0.
    
    Specified by:
    
    isEmpty in interface FloatContainer
  - size
```
public int size()
```
    Return the current number of elements in this container. The time for calculating the container's size may take O(n) time, although implementing classes should try to maintain the current size and return in constant time.
    
    Specified by:
    
    size in interface FloatContainer
  - clear
```
public void clear()
```
    Removes all elements from this collection.
    The internal array buffers are not released as a result of this call.
    
    Specified by:
    
    clear in interface FloatCollection
    
    See Also:
    release()
  - release
```
public void release()
```
    Release internal buffers of this deque and reallocate with the default buffer.
    
    Specified by:
    
    release in interface FloatCollection
    
    See Also:
    FloatCollection.clear()
  - ensureCapacity
```
public void ensureCapacity(int expectedElements)
```
    Ensure this container can hold at least the given number of elements without resizing its buffers.
    
    Specified by:
    
    ensureCapacity in interface Preallocable
    
    Parameters:
    expectedElements - The total number of elements, inclusive.
  - ensureBufferSpace
```
protected void ensureBufferSpace(int expectedAdditions)
```
    Ensures the internal buffer has enough free slots to store expectedAdditions. Increases internal buffer size if needed.
  - toArray
```
public float[] toArray()
```
    Default implementation of copying to an array.
    
    Specified by:
    
    toArray in interface FloatContainer
  - toArray
```
public float[] toArray(float[] target)
```
    Copies elements of this deque to an array. The content of the target array is filled from index 0 (head of the queue) to index size() - 1 (tail of the queue).
    
    Parameters:
    target - The target array must be large enough to hold all elements.
    
    Returns:
    Returns the target argument for chaining.
  - clone
```
public FloatArrayDeque clone()
```
    Clone this object. The returned clone will reuse the same hash function and array resizing strategy.
    
    Overrides:
    
    clone in class java.lang.Object
  - oneLeft
```
protected static int oneLeft(int index,
          int modulus)
```
    Move one index to the left, wrapping around buffer.
  - oneRight
```
protected static int oneRight(int index,
           int modulus)
```
    Move one index to the right, wrapping around buffer.
  - iterator
```
public java.util.Iterator<FloatCursor> iterator()
```
    Returns a cursor over the values of this deque (in head to tail order). The iterator is implemented as a cursor and it returns the same cursor instance on every call to Iterator.next() (to avoid boxing of primitive types). To read the current value (or index in the deque's buffer) use the cursor's public fields. An example is shown below.
```
 for (IntValueCursor c : intDeque) {
   System.out.println("buffer index=" + c.index + " value=" + c.value);
 }
 
```
    Specified by:
    
    iterator in interface FloatContainer
    
    Specified by:
    
    iterator in interface java.lang.Iterable<FloatCursor>
  - descendingIterator
```
public java.util.Iterator<FloatCursor> descendingIterator()
```
    Returns a cursor over the values of this deque (in tail to head order). The iterator is implemented as a cursor and it returns the same cursor instance on every call to Iterator.next() (to avoid boxing of primitive types). To read the current value (or index in the deque's buffer) use the cursor's public fields. An example is shown below.
```
 for (Iterator<IntCursor> i = intDeque.descendingIterator(); i.hasNext();) {
   final IntCursor c = i.next();
   System.out.println("buffer index=" + c.index + " value=" + c.value);
 }
 
```
    Specified by:
    
    descendingIterator in interface FloatDeque
    
    Returns:
    An iterator over elements in this deque in tail-to-head order.
  - forEach
```
public <T extends FloatProcedure> T forEach(T procedure)
```
    Applies a procedure to all container elements. Returns the argument (any subclass of FloatProcedure. This lets the caller to call methods of the argument by chaining the call (even if the argument is an anonymous type) to retrieve computed values, for example (IntContainer):
```
 int count = container.forEach(new IntProcedure() {
   int count; // this is a field declaration in an anonymous class.
 
   public void apply(int value) {
     count++;
   }
 }).count;
 
```
    Specified by:
    
    forEach in interface FloatContainer
  - forEach
```
public <T extends FloatPredicate> T forEach(T predicate)
```
    Applies a predicate to container elements as long, as the predicate returns true. The iteration is interrupted otherwise.
    
    Specified by:
    
    forEach in interface FloatContainer
  - descendingForEach
```
public <T extends FloatProcedure> T descendingForEach(T procedure)
```
    Applies procedure to all elements of this deque, tail to head.
    
    Specified by:
    
    descendingForEach in interface FloatDeque
  - descendingForEach
```
public <T extends FloatPredicate> T descendingForEach(T predicate)
```
    Applies a predicate to container elements as long, as the predicate returns true. The iteration is interrupted otherwise.
    
    Specified by:
    
    descendingForEach in interface FloatDeque
  - removeAll
```
public int removeAll(FloatPredicate predicate)
```
    Removes all elements in this collection for which the given predicate returns true.
    
    Specified by:
    
    removeAll in interface FloatCollection
    
    Returns:
    Returns the number of removed elements.
  - contains
```
public boolean contains(float e)
```
    Lookup a given element in the container. This operation has no speed guarantees (may be linear with respect to the size of this container).
    
    Specified by:
    
    contains in interface FloatContainer
    
    Returns:
    Returns true if this container has an element equal to e.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Returns true only if the other object is an instance of the same class and with the same elements.
    
    Overrides:
    
    equals in class java.lang.Object
  - equalElements
```
protected boolean equalElements(FloatArrayDeque other)
```
    Compare order-aligned elements against another FloatDeque.
  - from
```
public static FloatArrayDeque from(float... elements)
```
    Create a new deque by pushing a variable number of arguments to the end of it.
  - removeAll
```
public int removeAll(FloatLookupContainer c)
```
    Default implementation uses a predicate for removal.
    
    Specified by:
    
    removeAll in interface FloatCollection
    
    Returns:
    Returns the number of removed elements.
  - retainAll
```
public int retainAll(FloatLookupContainer c)
```
    Default implementation uses a predicate for retaining.
    
    Specified by:
    
    retainAll in interface FloatCollection
    
    Returns:
    Returns the number of removed elements.
  - retainAll
```
public int retainAll(FloatPredicate predicate)
```
    Default implementation redirects to FloatCollection.removeAll(FloatPredicate) and negates the predicate.
    
    Specified by:
    
    retainAll in interface FloatCollection
    
    Returns:
    Returns the number of removed elements.
  - toString
```
public java.lang.String toString()
```
    Convert the contents of this container to a human-friendly string.
    
    Overrides:
    
    toString in class java.lang.Object

Class FloatArrayDeque

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface com.carrotsearch.hppc.FloatCollection

Field Detail

buffer

head

tail

resizer

Constructor Detail

FloatArrayDeque

FloatArrayDeque

FloatArrayDeque

FloatArrayDeque

Method Detail

addFirst

addFirst

addFirst

addFirst

addLast

addLast

addLast

addLast

removeFirst

removeLast

getFirst

getLast

removeFirst

bufferIndexOf

removeLast

lastBufferIndexOf

removeAll

removeAtBufferIndex

isEmpty

size

clear

release

ensureCapacity

ensureBufferSpace

toArray

toArray

clone

oneLeft

oneRight

iterator

descendingIterator

forEach

forEach

descendingForEach

descendingForEach

removeAll

contains

hashCode

equals

equalElements

from

removeAll

retainAll

retainAll

toString