oracle.ucp.util

Class RingBuffer<T>

java.lang.Object

oracle.ucp.util.RingBuffer<T>

public class RingBuffer<T>
extends Object

Ring buffer class that handles an array of elements of type. Never gets overloaded, a newest added element overwrites an oldest one.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_CAPACITY

Constructor Summary

Constructors

Constructor and Description
RingBuffer()
RingBuffer(int capacity)

Method Summary

Modifier and Type	Method and Description
void	addItem(T item) add new item in the ring buffer
void	clear() Clears the RingBuffer by resetting the variable pointer and nUpdates to its initial value.
List<T>	getAsList() Get all current ring's contents
int	getCapacity() Get buffer's capacity
int	getNumberOfUpdates() Get number of buffer updates (returned Long.MAX_VALUE means that it was updated more than Long.MAX_VALUE times)
String	toString() string representation of ring buffer
String	toString(int nItems) string representation of the part of a ring buffer

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_CAPACITY

public static final int DEFAULT_CAPACITY

See Also:

Constant Field Values

Constructor Detail

RingBuffer

public RingBuffer()

RingBuffer

public RingBuffer(int capacity)

Method Detail

addItem

public final void addItem(T item)

add new item in the ring buffer

Parameters:

item - to add

getCapacity

public final int getCapacity()

Get buffer's capacity

Returns:

buffer's capacity

getNumberOfUpdates

public final int getNumberOfUpdates()

Get number of buffer updates (returned Long.MAX_VALUE means that it was updated more than Long.MAX_VALUE times)

getAsList

public final List<T> getAsList()

Get all current ring's contents

toString

public String toString()

string representation of ring buffer

Overrides:

toString in class Object

Returns:

string data

toString

public String toString(int nItems)

string representation of the part of a ring buffer

Parameters:

how - many items of a ring buffer to represent

Returns:

string data

clear

public final void clear()

Clears the RingBuffer by resetting the variable pointer and nUpdates to its initial value.