Package ej.bon

Class ResourceArray

java.lang.Object

ej.bon.ResourceArray

public class ResourceArray
extends Object

A resource array is an element of ResourceBuffer. It holds a set of data.

The data size in bytes is the same for all elements (aligned on bigger encoded element). Each element data is aligned in memory on element size: 4 bytes for 32-bits values and 2 bytes for 16-bits values. The ResourceBuffer encoder ensures the array is aligned too (using the same rule).

Constructor Summary

Constructors

Constructor	Description
ResourceArray()

Method Summary

Modifier and Type	Method	Description
int	elementAt(int index)	Reads the element at given index.
int[]	elements()	Reads all array elements.
ResourceBuffer	getBuffer()	Returns the ResourceBuffer used to create the ResourceArray.
int	length()	Gets the number of elements contained in the array (not the size in bytes).
ResourceBuffer	seekToElementPointer(int index)	Modify the position of the ResourceBuffer used to create this ResourceArray.

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceArray

public ResourceArray()

Method Detail

getBuffer

public ResourceBuffer getBuffer()

Returns the ResourceBuffer used to create the ResourceArray.

Returns:

the ResourceBuffer

length

public int length()

Gets the number of elements contained in the array (not the size in bytes).

Returns:

the available number of elements

elementAt

public int elementAt(int index)
              throws IOException

Reads the element at given index.

Parameters:

index - the element index

Returns:

the element read

Throws:

IOException - if an I/O error occurs.

IndexOutOfBoundsException - when the index is negative or higher or equal than length().

elements

public int[] elements()
               throws IOException

Reads all array elements.

Returns:

the elements read.

Throws:

IOException - if an I/O error occurs.

seekToElementPointer

public ResourceBuffer seekToElementPointer(int index)
                                    throws IOException

Modify the position of the ResourceBuffer used to create this ResourceArray. Updates its position to point on the element defined at the given index.

Parameters:

index - the ResourceBuffer offset pointer

Returns:

the ResourceBuffer used to create the ResourceArray.

Throws:

IOException - if an I/O error occurs.

IndexOutOfBoundsException - when the index is negative or higher or equal than length().