com.sosnoski.util.array
Class DoubleArray

java.lang.Object
  |
  +--com.sosnoski.util.GrowableBase
        |
        +--com.sosnoski.util.array.ArrayBase
              |
              +--com.sosnoski.util.array.DoubleArray

public class DoubleArray

extends ArrayBase

Growable double array with type specific access methods. This implementation is unsynchronized in order to provide the best possible performance for typical usage scenarios, so explicit synchronization must be implemented by a wrapper class or directly by the application in cases where instances are modified in a multithreaded environment. See the base classes for other details of the implementation.

Version:

1.0

Author:

Dennis M. Sosnoski

Field Summary

protected double[]

m_baseArray The underlying array used for storing the data.

Fields inherited from class com.sosnoski.util.array.ArrayBase

m_countPresent

Fields inherited from class com.sosnoski.util.GrowableBase

DEFAULT_SIZE, m_countLimit, m_maximumGrowth

Constructor Summary

DoubleArray()
Default constructor.

DoubleArray(DoubleArray base)
Copy (clone) constructor.

DoubleArray(int size)
Constructor with initial size specified.

DoubleArray(int size, int growth)
Constructor with full specification.

Method Summary

int	add(double value) Add a value to the array, appending it after the current values.
void	add(int index, double value) Add a value at a specified index in the array.
java.lang.Object	clone() Duplicates the object with the generic call.
double	get(int index) Retrieve the value present at an index position in the array.
protected java.lang.Object	getArray() Get the backing array.
void	set(int index, double value) Set the value at an index position in the array.
protected void	setArray(java.lang.Object array) Set the backing array.
double[]	toArray() Constructs and returns a simple array containing the same data as held in this growable array.
double[]	toArray(int offset, int length) Constructs and returns a simple array containing the same data as held in a portion of this growable array.

Methods inherited from class com.sosnoski.util.array.ArrayBase

buildArray, clear, getAddIndex, getArray, makeInsertSpace, remove, remove, setSize, size

Methods inherited from class com.sosnoski.util.GrowableBase

discardValues, ensureCapacity, growArray, resizeCopy

Methods inherited from class java.lang.Object

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

Field Detail

m_baseArray

protected double[] m_baseArray

The underlying array used for storing the data.

Constructor Detail

DoubleArray

public DoubleArray(int size,
                   int growth)

Constructor with full specification.

Parameters:

size - number of double values initially allowed in array

growth - maximum size increment for growing array

DoubleArray

public DoubleArray(int size)

Constructor with initial size specified.

Parameters:

size - number of double values initially allowed in array

DoubleArray

public DoubleArray()

Default constructor.

DoubleArray

public DoubleArray(DoubleArray base)

Copy (clone) constructor.

Parameters:

base - instance being copied

Method Detail

getArray

protected final java.lang.Object getArray()

Get the backing array. This method is used by the type-agnostic base class code to access the array used for type-specific storage.

Overrides:

getArray in class GrowableBase

Returns:

backing array object

setArray

protected final void setArray(java.lang.Object array)

Set the backing array. This method is used by the type-agnostic base class code to set the array used for type-specific storage.

Overrides:

setArray in class GrowableBase

Parameters:

backing - array object

add

public final int add(double value)

Add a value to the array, appending it after the current values.

Parameters:

value - value to be added

Returns:

index number of added element

add

public void add(int index,
                double value)

Add a value at a specified index in the array.

Parameters:

index - index position at which to insert element

value - value to be inserted into array

get

public final double get(int index)

Retrieve the value present at an index position in the array.

Parameters:

index - index position for value to be retrieved

Returns:

value from position in the array

set

public final void set(int index,
                      double value)

Set the value at an index position in the array.

Parameters:

index - index position to be set

value - value to be set

toArray

public double[] toArray()

Constructs and returns a simple array containing the same data as held in this growable array.

Returns:

array containing a copy of the data

toArray

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

Constructs and returns a simple array containing the same data as held in a portion of this growable array.

Parameters:

offset - start offset in array

length - number of doubles to use

Returns:

array containing a copy of the data

clone

public java.lang.Object clone()

Duplicates the object with the generic call.

Overrides:

clone in class java.lang.Object

Returns:

a copy of the object