org.egothor.cache

Class CachedIListPage

java.lang.Object

org.egothor.cache.CachedIListPage

public class CachedIListPage
extends Object

Represent one page of an inverted list stored in a cache.

Constructor Summary

Constructors

Constructor and Description
CachedIListPage(int capacity, long id) Constructor for the CachedIListPage object.

Method Summary

Modifier and Type	Method and Description
boolean	addCachedIListItem(CachedIListItem item) Adds a new item to the page.
long	capacity() Returns the capacity of the page.
long	getId() Gets the page id.
CachedIListItem	getIListItem(int id) Gets an item on the requested position.
boolean	isFull() Checks whether the page is full.
long	maxId() Returns the ID of last stored item or -1 if the page is empty.
long	size() Returns the number of items in the page.

Methods inherited from class java.lang.Object

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

Constructor Detail

CachedIListPage

public CachedIListPage(int capacity,
                       long id)

Constructor for the CachedIListPage object.

Parameters:

capacity - capacity of the page

id - id of the page

Method Detail

addCachedIListItem

public boolean addCachedIListItem(CachedIListItem item)

Adds a new item to the page.

Parameters:

item - item to add to page.

Returns:

true, if the item was added, false otherwise

getIListItem

public CachedIListItem getIListItem(int id)

Gets an item on the requested position.

Parameters:

id - position of the requested item

Returns:

item located on the requested position

getId

public long getId()

Gets the page id.

Returns:

page id

isFull

public boolean isFull()

Checks whether the page is full.

Returns:

true if the page is full, false otherwise

size

public long size()

Returns the number of items in the page.

Returns:

number of items in the page

capacity

public long capacity()

Returns the capacity of the page.

Returns:

capacity of the page

maxId

public long maxId()

Returns the ID of last stored item or -1 if the page is empty.

Returns:

ID of last stored item or -1 if the page is empty