Package net.ssehub.easy.dslCore

Class TopLevelModelAccessor

java.lang.Object

net.ssehub.easy.dslCore.TopLevelModelAccessor

public class TopLevelModelAccessor
extends java.lang.Object

Defines the generic access to the top-level model. This class is needed as some models and their editors shall be optional.

Author:

Holger Eichelberger

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	TopLevelModelAccessor.AbstractDefaultModelAccessor<M extends IModel>	Implements the register methods empty.
static class	TopLevelModelAccessor.AbstractModelAccessor<M extends IModel>	Basic implementation of TopLevelModelAccessor.IModelAccessor performing model loader registration and location registration.
static interface	TopLevelModelAccessor.IModelAccessor<M extends IModel>	Defines the interface for the model accessor.

Field Summary

Fields

Modifier and Type	Field	Description
private static java.util.Map<java.lang.String,TopLevelModelAccessor.IModelAccessor<?>>	ACCESSORS

Constructor Summary

Constructors

Modifier	Constructor	Description
private	TopLevelModelAccessor()	Prevents external instantiation.

Method Summary

Modifier and Type	Method	Description
void	addLocation(java.io.File location, ProgressObserver observer, boolean failOnFirst)	Called to add a model location (optional).
static TopLevelModelAccessor.IModelAccessor<?>	getAccessor(java.lang.String extension)	Returns the registered accessor for extension.
static int	getRegisteredCount()	Returns the number of registered accessors.
static ModelInfo<?>	getTopLevelModel(java.lang.String extension, java.lang.String projectName, java.lang.Object project)	Returns the top-level model info through a registered accessor for extension.
static void	register(java.lang.String extension, TopLevelModelAccessor.IModelAccessor<?> accessor)	Registers an accessor via the model file extension / id.
static java.lang.Iterable<TopLevelModelAccessor.IModelAccessor<?>>	registered()	Returns the registered accessors.
static void	registerLoader(ProgressObserver observer, boolean failOnFirst)	Called to register the model loader (optional).
void	removeLocation(java.io.File location, ProgressObserver observer, boolean failOnFirst)	Called to remove a model location (optional).
static void	unregister(java.lang.String extension)	Removes a registered accessor.
void	unregisterLoader(ProgressObserver observer, boolean failOnFirst)	Called to unregister the model loader (optional).

Methods inherited from class java.lang.Object

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

Field Detail

ACCESSORS

private static final java.util.Map<java.lang.String,TopLevelModelAccessor.IModelAccessor<?>> ACCESSORS

Constructor Detail

TopLevelModelAccessor

private TopLevelModelAccessor()

Prevents external instantiation.

Method Detail

register

public static void register(java.lang.String extension,
                            TopLevelModelAccessor.IModelAccessor<?> accessor)

Registers an accessor via the model file extension / id.

Parameters:

extension - the model extension

accessor - the model accessor

unregister

public static void unregister(java.lang.String extension)

Removes a registered accessor.

Parameters:

extension - the model extension / id

registered

public static java.lang.Iterable<TopLevelModelAccessor.IModelAccessor<?>> registered()

Returns the registered accessors.

Returns:

the registered accessors

getRegisteredCount

public static int getRegisteredCount()

Returns the number of registered accessors.

Returns:

the number of registered accessors

getAccessor

public static TopLevelModelAccessor.IModelAccessor<?> getAccessor(java.lang.String extension)

Returns the registered accessor for extension.

Parameters:

extension - the model extension / id

Returns:

the registered accessor (may be null if none was registered)

getTopLevelModel

public static ModelInfo<?> getTopLevelModel(java.lang.String extension,
                                            java.lang.String projectName,
                                            java.lang.Object project)

Returns the top-level model info through a registered accessor for extension.

Parameters:

extension - the model extension / id

project - an optional instance to access the top level model from some EASy instance

projectName - the name of the containing project (EASy convention)

Returns:

the registered accessor (may be null if none was registered)

registerLoader

public static void registerLoader(ProgressObserver observer,
                                  boolean failOnFirst)
                           throws ModelManagementException

Called to register the model loader (optional). Bulk operation on all registered accessors.s

Parameters:

observer - the progress observer

failOnFirst - if true, bulk stops on first exception thrown and that exception is also thrown by this method, if false try all bulk operations and throw only the first exception occurred

Throws:

ModelManagementException - in case of failures

unregisterLoader

public void unregisterLoader(ProgressObserver observer,
                             boolean failOnFirst)
                      throws ModelManagementException

Called to unregister the model loader (optional). Bulk operation on all registered accessors.

Parameters:

observer - the progress observer

failOnFirst - if true, bulk stops on first exception thrown and that exception is also thrown by this method, if false try all bulk operations and throw only the first exception occurred

Throws:

ModelManagementException - in case of failures

addLocation

public void addLocation(java.io.File location,
                        ProgressObserver observer,
                        boolean failOnFirst)
                 throws ModelManagementException

Called to add a model location (optional). Bulk operation on all registered accessors.

Parameters:

location - the location

observer - the progress observer

failOnFirst - if true, bulk stops on first exception thrown and that exception is also thrown by this method, if false try all bulk operations and throw only the first exception occurred

Throws:

ModelManagementException - in case of failures

removeLocation

public void removeLocation(java.io.File location,
                           ProgressObserver observer,
                           boolean failOnFirst)
                    throws ModelManagementException

Called to remove a model location (optional). Bulk operation on all registered accessors.

Parameters:

location - the location

observer - the progress observer

failOnFirst - if true, bulk stops on first exception thrown and that exception is also thrown by this method, if false try all bulk operations and throw only the first exception occurred

Throws:

ModelManagementException - in case of failures