Help on create a list with dataview
This is the code:
public class ListProductPage extends WebPage {
public ListProductPage() {
add(new Link(createLink) {
/**
* Go to the Edit page when the link is clicked, passing an
empty
* Product details
*/
public void onClick() {
//setResponsePage(new EditProductPage(getPage(), 0));
}
});
IColumn[] columns = new IColumn[3];
/*
* This is a composite column, created by extending
* FilteredAbstractColumn. This column adds a UserActionsPanel as
its
* cell contents. It also provides the go-and-clear filter control
* panel.
*/
columns[0] = new FilteredAbstractColumn(new Model(Actions)) {
// add the UserActionsPanel to the cell item
public void populateItem(Item cellItem, String componentId,
IModel model) {
Product product = (Product) cellItem.getModelObject();
cellItem.add(new UserActionsPanel(componentId, product));
}
// return the go-and-clear filter for the filter toolbar
public Component getFilter(String componentId, FilterForm form)
{
return new GoAndClearFilter(componentId, form);
}
};
// creates a column with a text filter
columns[1] = new TextFilteredPropertyColumn(new
Model(Description),
description, description);
columns[2] = new TextFilteredPropertyColumn(new Model(Price),
price);
// set up data provider
ProductDataProvider dataProvider = new ProductDataProvider(.);
// create the data table
DefaultDataTable products = new DefaultDataTable(products,
Arrays.asList(columns), dataProvider, 10);
//products.addTopToolbar(new FilterToolbar(products, dataProvider));
add(products);
}
public class ProductDataProvider extends SortableDataProvider implements
IFilterStateLocator {
/** dao that will be used to retrieve the list of Products */
private ProductDao dao;
/** reuse the Product entity to store filter information */
private Product filter = new Product();
public Object getFilterState() {
return filter;
}
public void setFilterState(Object state) {
filter = (Product) state;
}
public ProductDataProvider(ProductDao dao) {
this.dao = dao;
// set the default sort
setSort(description, true);
}
/**
* Gets an iterator for the subset of Products.
*
* @param first
*offset for the first row of data to retrieve
* @param count
*number of rows to retrieve
* @return iterator capable of iterating over {first, first+count}
Products
*/
public Iterator iterator(int first, int count) {
QueryParam qp = null;
SortParam sp = getSort();
qp = new QueryParam(first, count, sp.getProperty(),
sp.isAscending());
return dao.find(qp, filter);
}
/**
* Gets total number of items in the collection.
*
* @return total item count
*/
public int size() {
return dao.count(filter);
}
/**
* Converts the object in the collection to its model representation. A
good
* place to wrap the object in a detachable model.
*
* @param object
*The object that needs to be wrapped
* @return The model representation of the object
*/
public IModel model(Object object) {
return new DetachableModelProduct((Product) object, dao);
}
}
public class DetachableModelProduct extends LoadableDetachableModel {
//make it transient, so that it will not get serialized.
private transient Product product;
private final ProductDao dao;
private final Integer id;
@Override
public Object getObject() {
return this.product;
}
public DetachableModelProduct(Product product, ProductDao dao) {
this(product.getId(), dao);
this.product = product;
}
public DetachableModelProduct(Integer id, ProductDao dao) {
if (id == 0) {
throw new IllegalArgumentException();
}
this.id = id;
this.dao = dao;
}
/**
* Returns null to indicate there is no nested model.
* @return Null
*/
public IModel getNestedModel() {
return null;
}
/**
* Uses the DAO to load the required product when the model is attatched
to the request.
*/
protected void onAttach() {
product = dao.load(id);
}
/**
* Clear the reference to the product when the model is detatched.
*/
protected void onDetach() {
product = null;
}
/**
* Called after attatch to return the detatchable object.
* @param component The component asking for the
Re: Help on create a list with dataview
are you using wicket 1.2???
-igor
On Wed, Aug 6, 2008 at 7:33 AM, alex2008 [EMAIL PROTECTED] wrote:
This is the code:
public class ListProductPage extends WebPage {
public ListProductPage() {
add(new Link(createLink) {
/**
* Go to the Edit page when the link is clicked, passing an
empty
* Product details
*/
public void onClick() {
//setResponsePage(new EditProductPage(getPage(), 0));
}
});
IColumn[] columns = new IColumn[3];
/*
* This is a composite column, created by extending
* FilteredAbstractColumn. This column adds a UserActionsPanel as
its
* cell contents. It also provides the go-and-clear filter control
* panel.
*/
columns[0] = new FilteredAbstractColumn(new Model(Actions)) {
// add the UserActionsPanel to the cell item
public void populateItem(Item cellItem, String componentId,
IModel model) {
Product product = (Product) cellItem.getModelObject();
cellItem.add(new UserActionsPanel(componentId, product));
}
// return the go-and-clear filter for the filter toolbar
public Component getFilter(String componentId, FilterForm form)
{
return new GoAndClearFilter(componentId, form);
}
};
// creates a column with a text filter
columns[1] = new TextFilteredPropertyColumn(new
Model(Description),
description, description);
columns[2] = new TextFilteredPropertyColumn(new Model(Price),
price);
// set up data provider
ProductDataProvider dataProvider = new ProductDataProvider(.);
// create the data table
DefaultDataTable products = new DefaultDataTable(products,
Arrays.asList(columns), dataProvider, 10);
//products.addTopToolbar(new FilterToolbar(products, dataProvider));
add(products);
}
public class ProductDataProvider extends SortableDataProvider implements
IFilterStateLocator {
/** dao that will be used to retrieve the list of Products */
private ProductDao dao;
/** reuse the Product entity to store filter information */
private Product filter = new Product();
public Object getFilterState() {
return filter;
}
public void setFilterState(Object state) {
filter = (Product) state;
}
public ProductDataProvider(ProductDao dao) {
this.dao = dao;
// set the default sort
setSort(description, true);
}
/**
* Gets an iterator for the subset of Products.
*
* @param first
*offset for the first row of data to retrieve
* @param count
*number of rows to retrieve
* @return iterator capable of iterating over {first, first+count}
Products
*/
public Iterator iterator(int first, int count) {
QueryParam qp = null;
SortParam sp = getSort();
qp = new QueryParam(first, count, sp.getProperty(),
sp.isAscending());
return dao.find(qp, filter);
}
/**
* Gets total number of items in the collection.
*
* @return total item count
*/
public int size() {
return dao.count(filter);
}
/**
* Converts the object in the collection to its model representation. A
good
* place to wrap the object in a detachable model.
*
* @param object
*The object that needs to be wrapped
* @return The model representation of the object
*/
public IModel model(Object object) {
return new DetachableModelProduct((Product) object, dao);
}
}
public class DetachableModelProduct extends LoadableDetachableModel {
//make it transient, so that it will not get serialized.
private transient Product product;
private final ProductDao dao;
private final Integer id;
@Override
public Object getObject() {
return this.product;
}
public DetachableModelProduct(Product product, ProductDao dao) {
this(product.getId(), dao);
this.product = product;
}
public DetachableModelProduct(Integer id, ProductDao dao) {
if (id == 0) {
throw new IllegalArgumentException();
}
this.id = id;
this.dao = dao;
}
/**
* Returns null to indicate there is no nested model.
* @return Null
*/
public IModel getNestedModel() {
return null;
}
/**
* Uses the DAO to load the required product when the model is attatched
to the request.
*/
protected void onAttach() {
product = dao.load(id);
}
/**
* Clear the reference to the product when the model is detatched.
*/
protected void onDetach() {
product = null;
}
/**
* Called after attatch
Re: Help on create a list with dataview
No i'm using wicket 1.3.4. If there is a system to have a more simple code ... are you using wicket 1.2??? -igor -- View this message in context: http://www.nabble.com/Help-on-create-a-list-with-dataview-tp18852545p18853703.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Help on create a list with dataview
i guess i am wondering where this code came from? looks like code from 1.2...
/**
* Returns null to indicate there is no nested model.
* @return Null
*/
public IModel getNestedModel() {
return null;
}
-igor
On Wed, Aug 6, 2008 at 8:29 AM, alex2008 [EMAIL PROTECTED] wrote:
No i'm using wicket 1.3.4.
If there is a system to have a more simple code ...
are you using wicket 1.2???
-igor
--
View this message in context:
http://www.nabble.com/Help-on-create-a-list-with-dataview-tp18852545p18853703.html
Sent from the Wicket - User mailing list archive at Nabble.com.
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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Help on create a list with dataview
I'm trying to customize an example but without success if there is a better way to get the same result with the 1.3.4 so much the better. Which part of the code would be modify? i guess i am wondering where this code came from? looks like code from 1.2... -- View this message in context: http://www.nabble.com/Help-on-create-a-list-with-dataview-tp18852545p18856946.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
