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com.sigmadynamics.util
Class SDArray

java.lang.Object
com.sigmadynamics.util.SDArray

Direct Known Subclasses:

SDBooleanArray, SDChoiceArray, SDDoubleArray, SDGenericObjectArray, SDIntArray, SDLongArray, SDModelArray, SDObjectArray, SDPredictionContributionsArray, SDStringArray

public abstract class SDArray

extends java.lang.Object

This abstract class serves as a base for specialized SDArrayType classes.

See Also:

Serialized Form

Field Summary

protected static int	ALLOC_UNIT
protected static int	DEFAULT_INITIAL_SIZE
protected int	size

Constructor Summary

SDArray()
Default constructor.

Method Summary

abstract int	capacity() Returns buffer capacity.
void	clear() Deletes all elements from the array.
protected abstract void	ensureCapacity(int capacity) Grows the internal buffer as needed to accomodate the specified number of elements.
boolean	isEmpty() Returns true if the array does not contain any elements, or false otherwise.
protected void	rangeCheck(int fromIndex, int toIndex) Checks if fromIndex and toIndex are in range, and throws an exception if any of them is not.
abstract void	setSize(int size) Adds or deletes elements at the end of the array.
int	size() Returns the number of elements in the array.
abstract void	trimToSize() Removes any excess buffer capacity above the actual number of elements.

Methods inherited from class java.lang.Object

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

Field Detail

ALLOC_UNIT

protected static final int ALLOC_UNIT

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Constant Field Values

DEFAULT_INITIAL_SIZE

protected static final int DEFAULT_INITIAL_SIZE

See Also:

Constant Field Values

size

protected int size

Constructor Detail

SDArray

public SDArray()

Default constructor.

Method Detail

size

public final int size()

Returns the number of elements in the array.

Returns:

the number of elements.

isEmpty

public final boolean isEmpty()

Returns true if the array does not contain any elements, or false otherwise.

Returns:

true or false depending on whether the array is empty or not.

capacity

public abstract int capacity()

Returns buffer capacity.

Returns:

buffer capacity.

setSize

public abstract void setSize(int size)

Adds or deletes elements at the end of the array.

Parameters:

size - new number or elements.

clear

public void clear()

Deletes all elements from the array.

trimToSize

public abstract void trimToSize()

Removes any excess buffer capacity above the actual number of elements.

ensureCapacity

protected abstract void ensureCapacity(int capacity)

Grows the internal buffer as needed to accomodate the specified number of elements.

Parameters:

capacity - number of elements to accomodate.

rangeCheck

protected void rangeCheck(int fromIndex,
                          int toIndex)

Checks if fromIndex and toIndex are in range, and throws an exception if any of them is not. This method is not a part of public API and should not be used by Inline Service code.

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