com.hp.util

Class MarkPageRequest<M>

java.lang.Object

com.hp.util.PageRequest

com.hp.util.MarkPageRequest<M>

Type Parameters:

M - type of the mark.

All Implemented Interfaces:

Serializable

public class MarkPageRequest<M>
extends PageRequest

This is a mark based page request for use with NOSQL databases such as Cassandra. This page request holds a mark to start reading the page and the direction to Navigate. This page request is embedded in the MarkPage and sent back to the caller when a page is read. The mark and navigation is updated. The caller can use this request for subsequent paged read on the database

Author:

Nachiket Abhyankar

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MarkPageRequest.Navigation Page Navigation type.

Constructor Summary

Constructors

Constructor and Description
MarkPageRequest(int pageSize) Creates a request for the first page.
MarkPageRequest(M mark, MarkPageRequest.Navigation navigation, int pageSize) Creates a request for any page.

Method Summary

Methods

Modifier and Type	Method and Description
<T> MarkPageRequest<T>	convert(T convertedMark) Converts the page request to use a converted mark.
boolean	equals(Object obj)
M	getMark()
MarkPageRequest.Navigation	getNavigation()
int	hashCode()
String	toString()

Methods inherited from class com.hp.util.PageRequest

getPageIndex, getPageSize

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

MarkPageRequest

public MarkPageRequest(int pageSize)

Creates a request for the first page.

Parameters:

pageSize - page size (maximum number of data items per page).

MarkPageRequest

public MarkPageRequest(M mark,
               MarkPageRequest.Navigation navigation,
               int pageSize)

Creates a request for any page.

Parameters:

mark - the mark to use in the subsequent requests

navigation - the direction of read. It could be NEXT for next page and PREVIOUS for the previous page.

pageSize - the size of this page.

Method Detail

getMark

public M getMark()

getNavigation

public MarkPageRequest.Navigation getNavigation()

convert

public <T> MarkPageRequest<T> convert(T convertedMark)

Converts the page request to use a converted mark.

Parameters:

convertedMark - converted mark.

Returns:

a mark page request with a converted mark.

hashCode

public int hashCode()

Overrides:

hashCode in class PageRequest

equals

public boolean equals(Object obj)

Overrides:

equals in class PageRequest

toString

public String toString()

Overrides:

toString in class Object