public class ScalarTableContentProvider extends ELPropertyContentProvider implements ITableContentProvider
ITableContentProvider implementation for an object that doesn't really have rows.
Used internally by table and tree UI controls when bound to a scalar object
class Item {
public int getId();
public String getName();
};
Item item = new Item("1", "First Item");
IUpdateableContentProvider provider = new ScalarTableContentProvider(item);
for (int i = 0; i < provider.getRowCount(); i++) { // only one iteration
provider.setRowIndex(i);
if (provider.isRowAvailable()) {
Integer itemId = (Integer)provider.getValue("id"); // 1
String itemName = (String)provider.getValue("name"); // returns "First Item"
provider.setValue("name", "item name" + i); // updates item name
}
};
| Modifier and Type | Field and Description |
|---|---|
protected int |
m_index |
protected String |
m_var |
m_ofExpireWithPageFlow| Constructor and Description |
|---|
ScalarTableContentProvider(Object scalar) |
| Modifier and Type | Method and Description |
|---|---|
Object |
getCurrentRow()
Returns wrapped current row object.
|
int |
getRowCount()
Always returns 1
|
int |
getRowIndex()
Return the zero-relative index of the currently selected row.
|
String |
getRowVariable()
Returns row variable name.
|
boolean |
isRowAvailable()
Returns true if current index is zero
|
void |
setRowIndex(int rowIndex)
Sets new row index.
|
void |
setRowVariable(String var)
Sets row variable name to use for accessing row specific data.
|
getObject, getPropertyKeys, getType, getValue, hasProperty, isReadOnly, setObject, setValue, toStringgetExpireWithPageFlow, setExpireWithPageFlowclone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitgetPropertyKeys, getType, getValue, hasProperty, toStringprotected int m_index
protected String m_var
public ScalarTableContentProvider(Object scalar)
public int getRowCount()
getRowCount in interface ITableContentProviderDataModel.getRowCount()public int getRowIndex()
ITableContentProviderIf we are not currently positioned on a row, or no wrappedData is available, return -1.
getRowIndex in interface ITableContentProviderDataModel.getRowIndex()public void setRowIndex(int rowIndex)
setRowIndex in interface ITableContentProviderrowIndex - can be -1 or 0DataModel.getRowIndex()public boolean isRowAvailable()
isRowAvailable in interface ITableContentProviderDataModel.isRowAvailable()public String getRowVariable()
ITableContentProviderReturns row variable name.
If specified row variable can be used to access current row data for the provider internal needs, like sorting or addressing.
getRowVariable in interface ITableContentProviderITableContentProvider.setRowVariable(String)public void setRowVariable(String var)
ITableContentProvider
Sets row variable name to use for accessing row specific data. For
example, if the provider wrapps an array of a data objects with
id property and the variable name is item, then
the provider implementation can access id property of each
record as item.id.
This property should set only once at the provider initialization time
setRowVariable in interface ITableContentProviderpublic Object getCurrentRow()
ITableContentProvider
Returns wrapped current row object. Can be null if not data
is available
getCurrentRow in interface ITableContentProviderITableContentProvider.isRowAvailable()