at.mug.iqm.gui.tilecachetool

Class RingBuffer

java.lang.Object

at.mug.iqm.gui.tilecachetool.RingBuffer

public final class RingBuffer
extends Object

Title: Tile Cache Monitoring Tool

Description: Monitors and displays JAI Tile Cache activity.

Copyright: Copyright (c) 2002, 2010

All Rights Reserved

Company: Virtual Visions Software, Inc.

Version:

1.02 Circular array (fixed length)

Author:

Dennis Sigel

Field Summary

Fields

Modifier and Type	Field and Description
private float[]	array
private int	count
private boolean	filled
private int	size
private int	start
private int	write_pointer

Constructor Summary

Constructors

Constructor and Description
RingBuffer(int size) Constructor

Method Summary

Modifier and Type	Method and Description
int	getCount() Returns the current number of entries in the ring buffer, up to the ring buffer size.
int	getSize() Returns the ring buffer size.
float	read(int i) Read a data point value from the ring buffer.
void	setSize(int new_size) Changes the ring buffer array dimension
void	write(float data) Write a data point into the ring buffer

Methods inherited from class java.lang.Object

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

Field Detail

size

private int size

start

private int start

count

private int count

write_pointer

private int write_pointer

filled

private boolean filled

array

private float[] array

Constructor Detail

RingBuffer

public RingBuffer(int size)

Constructor

Parameters:

size - ring buffer array dimension

Method Detail

setSize

public void setSize(int new_size)

Changes the ring buffer array dimension

Parameters:

new_size - The new ring buffer dimension

Throws:

IllegalArgumentException - if new_size .lt. 2

Since:

TCT 1.0

getCount

public int getCount()

Returns the current number of entries in the ring buffer, up to the ring buffer size.

getSize

public int getSize()

Returns the ring buffer size.

write

public void write(float data)

Write a data point into the ring buffer

Parameters:

data - Floating point value of JVM memory usage.

read

public float read(int i)

Read a data point value from the ring buffer. Returns the value as a floating point number.

Parameters:

i - Data index offset from the starting index.