Object Array Data Provider

See Also

This TableDataProvider implementation wraps access to an array of JavaBeans objects. Depending on whether the class in the array is a simple Java Object or a JavaBeans object, the data provider's field keys correspond either to the properties of the JavaBeans object or to the public member fields of the Java Object in the list. If the class in the list is not a JavaBeans object, you must set the includeFields property to make the class's public instance variables accessible as fields.

A common use of this data provider is to wrap an array and then bind the Table component to it, as you can do with a database table.

This data provider determines which fields are available by examining the underlying component data type of the array. If you pass in an array that is of type Object[], with initialization code like the following code, the fields of your actual object type will not be available.:

   Map map = ...;
   return new ObjectArrayDataProvider(map.values().toArray());


If you know that your data is all of type Foo, use code simlar to the following code:
   Map map = ...;
   return new ObjectArrayDataProvider
     ((Foo[]) map.values().toArray(new Foo[0]));

This data provider is one of several TableDataProvider implementations that have the notion of a cursor that can be positioned at a particular row in the underlying data. TableDataProvider provides both random access, where you specify both a FieldKey and a RowKey, and cursor-based access, where you specify a FieldKey and the RowKey is determined by the current setting for the cursor.

See Also
Object Array Data Provider Properties Window
About Components and Data
About Binding Components to Data
About Components

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