Package ch.tocco.nice2.model.form.impl.datanavigation

Class NullNavigationNavigator

java.lang.Object

ch.tocco.nice2.model.form.impl.datanavigation.NullNavigationNavigator

All Implemented Interfaces:

DataPathNavigator

public class NullNavigationNavigator
extends Object
implements DataPathNavigator

Hack to have fields in entity forms that are not related to an entity field.

Constructor Summary

Constructors

Constructor	Description
NullNavigationNavigator()

Method Summary

Modifier and Type	Method	Description
@Nullable String	asSchemaNavigation(String pathAsString, Class<?> cls)	Q: I really don't know how this thing can be used on queries or scripts...
boolean	useNullDataSource()

Methods inherited from class java.lang.Object

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

Constructor Details

NullNavigationNavigator

public NullNavigationNavigator()

Method Details

asSchemaNavigation

@Nullable
public @Nullable String asSchemaNavigation(String pathAsString,
 Class<?> cls)

Description copied from interface: DataPathNavigator

Q: I really don't know how this thing can be used on queries or scripts... A (roman): Can only be used in stuff like relation-names/field-names. Maybe i can be used on queries, but then it only returns the target type or something.

The idea is that the system can navigate on a schema (like relation, fields, java-bean-properties etc) without having the actual data yet.

Specified by:

asSchemaNavigation in interface DataPathNavigator

Parameters:

pathAsString - the path we want to navigate on

cls - a class which represents the schema-type. For example if its an 'EntityModel' the navigation is on the data-base-schema.

Returns:

null if the navigation isn't supportet for this type. Otherwhise it returns the path.

useNullDataSource

public boolean useNullDataSource()

Specified by:

useNullDataSource in interface DataPathNavigator