net.javaprog.ui.wizard
Class DataModel

java.lang.Object
  net.javaprog.ui.wizard.DataModel

public class DataModel
extends Object

Provides a data container that can be shared by steps aiming to collect data. A step can register a data source (such as a text field) with this data model enabling other steps to look up the value of that data source.

Author:

Michael Rudolf

See Also:

DataLookup

Field Summary

protected Map

data Maps identifier keys to DataLookup instances.

Constructor Summary

DataModel()
Creates a new data model.

Method Summary

Object	getData(String key) Returns the value of a previously registered data source.
void	registerDataLookup(String key, DataLookup lookup) Registers the given data lookup mechanism with this model using the key as identifier.

Methods inherited from class java.lang.Object

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

Field Detail

data

protected final Map data

Maps identifier keys to DataLookup instances.

See Also:

registerDataLookup(String, DataLookup)

Constructor Detail

DataModel

public DataModel()

Creates a new data model.

Method Detail

getData

public Object getData(String key)

Returns the value of a previously registered data source. This method forwards exceptions thrown by DataLookup.lookupData().

See Also:

registerDataLookup(String, DataLookup)

registerDataLookup

public void registerDataLookup(String key,
                               DataLookup lookup)

Registers the given data lookup mechanism with this model using the key as identifier.

See Also:

getData(String), DataLookup