org.ObjectLayout

Class PrimitiveFloatArray

java.lang.Object

org.ObjectLayout.AbstractPrimitiveArray

org.ObjectLayout.PrimitiveFloatArray

public class PrimitiveFloatArray
extends AbstractPrimitiveArray

A subclassable array of floats. PrimitiveFloatArray is designed with semantics specifically chosen and restricted such that a "flat" memory layout of the implemented data structure would be possible on optimizing JVMs. While fully functional on all JVM implementation (of Java SE 6 and above), the semantics are such that a JVM may transparently optimise the implementation to provide a compact contiguous layout that facilitates dead-reckoning (as opposed to de-referenced) access to elements

Constructor Summary

Constructors

Constructor and Description
PrimitiveFloatArray() Default constructor
PrimitiveFloatArray(PrimitiveFloatArray sourceArray) Copying constructor

Method Summary

Modifier and Type	Method and Description
float[]	asArray() Get a reference to a float[] that represents the contents of this array.
static <A extends PrimitiveFloatArray> A	copyInstance(A source) Create a new <A extends PrimitiveFloatArray> instance, using a copy constructor to replicate the contents of the given source array
static <A extends PrimitiveFloatArray> A	copyInstance(java.lang.invoke.MethodHandles.Lookup lookup, A source) Create a new <A extends PrimitiveFloatArray> instance, using a copy constructor to replicate the contents of the given source array
float	get(int index) Get the value of an element in the array.
float	get(long index) Get the value of an element in the array.
long	getLength() Get the length of the array
static <A extends PrimitiveFloatArray> A	newInstance(java.lang.Class<A> arrayClass, long length) Create a new instance of <A extends PrimitiveFloatArray> with a given length.
static <A extends PrimitiveFloatArray> A	newInstance(CtorAndArgs<A> arrayCtorAndArgs, long length) Create a new instance of <A extends PrimitiveFloatArray> with a given length, array constructor, and array constructor arguments.
static PrimitiveFloatArray	newInstance(long length) Create a new instance of PrimitiveFloatArray with a given length.
static <A extends PrimitiveFloatArray> A	newInstance(long length, java.lang.reflect.Constructor<A> arrayConstructor, java.lang.Object... arrayConstructorArgs) Create a new instance of <A extends PrimitiveFloatArray> with a given length, array constructor, and array constructor arguments.
static <A extends PrimitiveFloatArray> A	newInstance(java.lang.invoke.MethodHandles.Lookup lookup, java.lang.Class<A> arrayClass, long length) Create a new instance of <A extends PrimitiveFloatArray> with a given length.
void	set(int index, float value) set the value of an element in the array.
void	set(long index, float value) set the value of an element in the array.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PrimitiveFloatArray

public PrimitiveFloatArray()

Default constructor

PrimitiveFloatArray

public PrimitiveFloatArray(PrimitiveFloatArray sourceArray)

Copying constructor

Parameters:

sourceArray - the array to copy

Method Detail

asArray

public float[] asArray()
                throws java.lang.IllegalStateException

Get a reference to a float[] that represents the contents of this array. Will throw an exception if array is too long to represent as a float[].

Returns:

a reference to a float[] that represents the contents of this array

Throws:

java.lang.IllegalStateException - if array is too long to represent as a float[]

getLength

public long getLength()

Get the length of the array

Returns:

the length of the array

get

public float get(int index)

Get the value of an element in the array.

Parameters:

index - the index of the element

Returns:

the value of the element at the given index

get

public float get(long index)

Get the value of an element in the array.

Parameters:

index - the index of the element

Returns:

the value of the element at the given index

set

public void set(int index,
                float value)

set the value of an element in the array.

Parameters:

index - the index of the element to set

value - the value to assign to the element

set

public void set(long index,
                float value)

set the value of an element in the array.

Parameters:

index - the index of the element to set

value - the value to assign to the element

newInstance

public static PrimitiveFloatArray newInstance(long length)

Create a new instance of PrimitiveFloatArray with a given length.

Parameters:

length - the length of the array.

Returns:

a new instance of PrimitiveFloatArray with the given length

newInstance

public static <A extends PrimitiveFloatArray> A newInstance(java.lang.Class<A> arrayClass,
                                                            long length)

Create a new instance of <A extends PrimitiveFloatArray> with a given length.

Type Parameters:

A - The class of the array to be created (extends PrimitiveFloatArray)

Parameters:

arrayClass - The class of the array to be created (extends PrimitiveFloatArray)

length - the length of the array.

Returns:

a new instance of <A extends PrimitiveFloatArray> with a given length

newInstance

public static <A extends PrimitiveFloatArray> A newInstance(java.lang.invoke.MethodHandles.Lookup lookup,
                                                            java.lang.Class<A> arrayClass,
                                                            long length)

Create a new instance of <A extends PrimitiveFloatArray> with a given length.

Type Parameters:

A - The class of the array to be created (extends PrimitiveFloatArray)

Parameters:

lookup - The lookup object to use for accessing the array's constructor

arrayClass - The class of the array to be created (extends PrimitiveFloatArray)

length - the length of the array.

Returns:

a new instance of <A extends PrimitiveFloatArray> with a given length

newInstance

public static <A extends PrimitiveFloatArray> A newInstance(CtorAndArgs<A> arrayCtorAndArgs,
                                                            long length)

Create a new instance of <A extends PrimitiveFloatArray> with a given length, array constructor, and array constructor arguments.

Type Parameters:

A - The class of the array to be created (extends PrimitiveFloatArray)

Parameters:

length - The length of the array.

arrayCtorAndArgs - for creating the array

Returns:

a new instance of <A extends PrimitiveFloatArray>

newInstance

public static <A extends PrimitiveFloatArray> A newInstance(long length,
                                                            java.lang.reflect.Constructor<A> arrayConstructor,
                                                            java.lang.Object... arrayConstructorArgs)

Create a new instance of <A extends PrimitiveFloatArray> with a given length, array constructor, and array constructor arguments.

Type Parameters:

A - The class of the array to be created (extends PrimitiveFloatArray)

Parameters:

length - The length of the array.

arrayConstructor - The array constructor to use

arrayConstructorArgs - The arguments to pass to the array constructor

Returns:

a new instance of <A extends PrimitiveFloatArray>

copyInstance

public static <A extends PrimitiveFloatArray> A copyInstance(A source)
                                                      throws java.lang.NoSuchMethodException

Create a new <A extends PrimitiveFloatArray> instance, using a copy constructor to replicate the contents of the given source array

Type Parameters:

A - The class of the array to be created (extends PrimitiveFloatArray)

Parameters:

source - The array to replicate

Returns:

a new instance of <A extends PrimitiveFloatArray> copied from the source array

Throws:

java.lang.NoSuchMethodException - if <A> does not have a copy constructor

copyInstance

public static <A extends PrimitiveFloatArray> A copyInstance(java.lang.invoke.MethodHandles.Lookup lookup,
                                                             A source)
                                                      throws java.lang.NoSuchMethodException

Create a new <A extends PrimitiveFloatArray> instance, using a copy constructor to replicate the contents of the given source array

Type Parameters:

A - The class of the array to be created (extends PrimitiveFloatArray)

Parameters:

lookup - The lookup object to use for accessing the array's constructor

source - The array to replicate

Returns:

a new instance of <A extends PrimitiveFloatArray> copied from the source array

Throws:

java.lang.NoSuchMethodException - if <A> does not have a copy constructor