Package com.io7m.idstore.database.postgres.internal

Class IdAbstractSearch<R extends Q,Q extends IdDatabaseQueriesType,T>

java.lang.Object

com.io7m.idstore.database.postgres.internal.IdAbstractSearch<R,Q,T>

Type Parameters:

R - The (internal) type of queries

Q - The type of queries

T - The type of returned values

All Implemented Interfaces:

IdDatabasePagedQueryType<Q,T>

public abstract class IdAbstractSearch<R extends Q,Q extends IdDatabaseQueriesType,T>
extends Object
implements IdDatabasePagedQueryType<Q,T>

A convenient abstract class for performing paginated searches.

Method Summary

Modifier and Type	Method	Description
protected abstract IdPage<T>	page(R queries, com.io7m.jqpage.core.JQKeysetRandomAccessPageDefinition page)
protected final int	pageCount()
final IdPage<T>	pageCurrent(Q queries)	Get data for the current page.
final IdPage<T>	pageNext(Q queries)	Get data for the next page.
final IdPage<T>	pagePrevious(Q queries)	Get data for the previous page.

Methods inherited from class java.lang.Object

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

Method Details

pageCount

protected final int pageCount()

page

protected abstract IdPage<T> page(R queries,
 com.io7m.jqpage.core.JQKeysetRandomAccessPageDefinition page)
                           throws IdDatabaseException

Throws:

IdDatabaseException

pageCurrent

public final IdPage<T> pageCurrent(Q queries)
                            throws IdDatabaseException

Description copied from interface: IdDatabasePagedQueryType

Get data for the current page.

Specified by:

pageCurrent in interface IdDatabasePagedQueryType<R extends Q,Q extends IdDatabaseQueriesType>

Parameters:

queries - The query interface

Returns:

A page of results

Throws:

IdDatabaseException - On errors

pageNext

public final IdPage<T> pageNext(Q queries)
                         throws IdDatabaseException

Description copied from interface: IdDatabasePagedQueryType

Get data for the next page. If the current page is the last page, the function acts as IdDatabasePagedQueryType.pageCurrent(IdDatabaseQueriesType).

Specified by:

pageNext in interface IdDatabasePagedQueryType<R extends Q,Q extends IdDatabaseQueriesType>

Parameters:

queries - The query interface

Returns:

A page of results

Throws:

IdDatabaseException - On errors

pagePrevious

public final IdPage<T> pagePrevious(Q queries)
                             throws IdDatabaseException

Description copied from interface: IdDatabasePagedQueryType

Get data for the previous page. If the current page is the first page, the function acts as IdDatabasePagedQueryType.pageCurrent(IdDatabaseQueriesType).

Specified by:

pagePrevious in interface IdDatabasePagedQueryType<R extends Q,Q extends IdDatabaseQueriesType>

Parameters:

queries - The query interface

Returns:

A page of results

Throws:

IdDatabaseException - On errors