org.ujorm.wicket.component.grid

Class OrmDataProviderCached<U extends OrmUjo>

java.lang.Object

org.apache.wicket.extensions.markup.html.repeater.util.SortableDataProvider<U,Object>

org.ujorm.wicket.component.grid.AbstractDataProvider<U>

org.ujorm.wicket.component.grid.OrmDataProvider<U>

org.ujorm.wicket.component.grid.OrmDataProviderCached<U>

All Implemented Interfaces:

Serializable, org.apache.wicket.extensions.markup.html.repeater.data.sort.ISortStateLocator<Object>, org.apache.wicket.extensions.markup.html.repeater.data.table.ISortableDataProvider<U,Object>, org.apache.wicket.markup.repeater.data.IDataProvider<U>, org.apache.wicket.model.IDetachable, org.apache.wicket.util.io.IClusterable

public class OrmDataProviderCached<U extends OrmUjo>
extends OrmDataProvider<U>

Optimized Data provider for a better performance on the paging

Author:

Pavel Ponec

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected int	maxPages Max page count

Fields inherited from class org.ujorm.wicket.component.grid.AbstractDataProvider

DEFAULT_CSS_ACTION, DEFAULT_CSS_SELECTED, DEFAULT_DATATABLE_ID, filter, highlighting, size

Constructor Summary

Constructors

Constructor and Description
OrmDataProviderCached(org.apache.wicket.model.IModel<org.ujorm.criterion.Criterion<U>> criterion) Consturctor
OrmDataProviderCached(org.apache.wicket.model.IModel<org.ujorm.criterion.Criterion<U>> criterion, org.ujorm.Key<? super U,?> defaultSort) Consturctor

Method Summary

Modifier and Type	Method and Description
void	clearCache() Clerar cache, if any
<S> org.apache.wicket.extensions.markup.html.repeater.data.table.DataTable<U,S>	createDataTable(int rowsPerPage) Create AJAX-based DataTable with a AbstractDataProvider.DEFAULT_DATATABLE_ID
<S> org.apache.wicket.extensions.markup.html.repeater.data.table.DataTable<U,S>	createDataTable(int rowsPerPage, boolean insertToolbar) Create AJAX-based DataTable
<S> org.apache.wicket.extensions.markup.html.repeater.data.table.DataTable<U,S>	createDataTable(String id, int rowsPerPage) Create AJAX-based DataTable
Duration	getDataLife() Cache duration is 2 minutes by default
protected int	getRowCountLimit() Get max row count limit
Iterator<U>	iterator(long first, long count) Get a sublist.
static <T extends OrmUjo> OrmDataProvider<T>	of(org.ujorm.criterion.Criterion<T> criterion) Factory for the class
static <T extends OrmUjo> OrmDataProvider<T>	of(org.ujorm.criterion.Criterion<T> criterion, org.ujorm.Key<? super T,?> defaultSort) Factory for the class
static <T extends OrmUjo> OrmDataProvider<T>	of(org.apache.wicket.model.IModel<org.ujorm.criterion.Criterion<T>> criterion) Factory for the class
static <T extends OrmUjo> OrmDataProvider<T>	of(org.apache.wicket.model.IModel<org.ujorm.criterion.Criterion<T>> criterion, org.ujorm.Key<? super T,?> defaultSort) Factory for the class
long	size() Method calculate the size using special SQL request.

Methods inherited from class org.ujorm.wicket.component.grid.OrmDataProvider

addHidden, createQuery, detach, fetchDatabaseColumns, getHiddenColumns, getOrmSession, isFetchDatabaseColumns, isSortingEnabled, iterator, setFetchDatabaseColumns, sortDatabaseQuery

Methods inherited from class org.ujorm.wicket.component.grid.AbstractDataProvider

add, add, add, add, add, add, add, add, createBottomToolbars, createDataTable, createKeyColumn, createTopToolbars, deleteRow, getColumns, getCssSelected, getDomainClass, getExportableColumns, getFirstTableRow, getHighlighting, getSortKey, getSortKeys, insertRow, isDefaultColumnSorting, model, setCssClass, setDefaultColumnSorting, setHighlighting, setHighlighting, setSelected, setSelected, setSort, updateRow

Methods inherited from class org.apache.wicket.extensions.markup.html.repeater.util.SortableDataProvider

getSort, getSortState, setSort, setSort

Methods inherited from class java.lang.Object

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

Field Detail

maxPages

protected final int maxPages

Max page count

See Also:

Constant Field Values

Constructor Detail

OrmDataProviderCached

public OrmDataProviderCached(@Nonnull
                             org.apache.wicket.model.IModel<org.ujorm.criterion.Criterion<U>> criterion)

Consturctor

OrmDataProviderCached

public OrmDataProviderCached(@Nonnull
                             org.apache.wicket.model.IModel<org.ujorm.criterion.Criterion<U>> criterion,
                             @Nonnull
                             org.ujorm.Key<? super U,?> defaultSort)

Consturctor

Method Detail

size

public long size()

Method calculate the size using special SQL request. Overwrite the method for an optimization.
Original documentation: Method calculate the size using special SQL request. Overwrite the method for an optimization.
Original documentation: Method calculate the size using special SQL request. Overwrite the method for an optimization.
Original documentation:

Specified by:

size in interface org.apache.wicket.markup.repeater.data.IDataProvider<U extends OrmUjo>

Overrides:

size in class OrmDataProvider<U extends OrmUjo>

iterator

@Nonnull
public Iterator<U> iterator(long first,
                                     long count)

Get a sublist.

Specified by:

iterator in interface org.apache.wicket.markup.repeater.data.IDataProvider<U extends OrmUjo>

Overrides:

iterator in class OrmDataProvider<U extends OrmUjo>

createDataTable

public <S> org.apache.wicket.extensions.markup.html.repeater.data.table.DataTable<U,S> createDataTable(int rowsPerPage)

Create AJAX-based DataTable with a AbstractDataProvider.DEFAULT_DATATABLE_ID

Overrides:

createDataTable in class AbstractDataProvider<U extends OrmUjo>

createDataTable

public final <S> org.apache.wicket.extensions.markup.html.repeater.data.table.DataTable<U,S> createDataTable(String id,
                                                                                                             int rowsPerPage)

Create AJAX-based DataTable

Overrides:

createDataTable in class AbstractDataProvider<U extends OrmUjo>

createDataTable

public final <S> org.apache.wicket.extensions.markup.html.repeater.data.table.DataTable<U,S> createDataTable(int rowsPerPage,
                                                                                                             boolean insertToolbar)

Create AJAX-based DataTable

Overrides:

createDataTable in class AbstractDataProvider<U extends OrmUjo>

getDataLife

@Nonnull
public Duration getDataLife()

Cache duration is 2 minutes by default

getRowCountLimit

protected int getRowCountLimit()

Get max row count limit

clearCache

public void clearCache()

Clerar cache, if any

Overrides:

clearCache in class OrmDataProvider<U extends OrmUjo>

of

public static <T extends OrmUjo> OrmDataProvider<T> of(@Nonnull
                                                       org.apache.wicket.model.IModel<org.ujorm.criterion.Criterion<T>> criterion,
                                                       org.ujorm.Key<? super T,?> defaultSort)

Factory for the class

of

public static <T extends OrmUjo> OrmDataProvider<T> of(@Nonnull
                                                       org.apache.wicket.model.IModel<org.ujorm.criterion.Criterion<T>> criterion)

Factory for the class

of

public static <T extends OrmUjo> OrmDataProvider<T> of(@Nonnull
                                                       org.ujorm.criterion.Criterion<T> criterion,
                                                       org.ujorm.Key<? super T,?> defaultSort)

Factory for the class

of

public static <T extends OrmUjo> OrmDataProvider<T> of(org.ujorm.criterion.Criterion<T> criterion)

Factory for the class