org.eclipse.xtext.resource.impl
Class LiveShadowedResourceDescriptions

java.lang.Object
  org.eclipse.xtext.resource.impl.AbstractCompoundSelectable
      org.eclipse.xtext.resource.impl.ResourceSetBasedResourceDescriptions
          org.eclipse.xtext.resource.impl.LiveShadowedResourceDescriptions

All Implemented Interfaces:

IResourceDescriptions, IResourceDescriptions.IContextAware, ISelectable

public class LiveShadowedResourceDescriptions
extends ResourceSetBasedResourceDescriptions

Since:

2.1

Author:

Jan Koehnlein - Initial contribution and API, Sebastian Zarnekow - Applied implementation pattern from DirtyStateAwareResourceDescriptions, Knut Wannheden - Fixed performance issue caused by the inheritance from ResourceSetBasedResourceDescriptions

The implementation now manages local resources using an injected ResourceSetBasedResourceDescriptions field. The class only inherits from ResourceSetBasedResourceDescriptions to remain backwards compatible with the initial 2.1 release.

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.xtext.resource.IResourceDescriptions

IResourceDescriptions.IContextAware, IResourceDescriptions.NullImpl

Constructor Summary

LiveShadowedResourceDescriptions()

Method Summary

java.lang.Iterable<IResourceDescription>	getAllResourceDescriptions()
java.lang.Iterable<IEObjectDescription>	getExportedObjects()
java.lang.Iterable<IEObjectDescription>	getExportedObjects(org.eclipse.emf.ecore.EClass type, QualifiedName name, boolean ignoreCase)
java.lang.Iterable<IEObjectDescription>	getExportedObjectsByObject(org.eclipse.emf.ecore.EObject object)
java.lang.Iterable<IEObjectDescription>	getExportedObjectsByType(org.eclipse.emf.ecore.EClass type)
IResourceDescription	getResourceDescription(org.eclipse.emf.common.util.URI uri) Returns the resource descriptions for the given URI.
org.eclipse.emf.ecore.resource.ResourceSet	getResourceSet()
protected boolean	hasDescription(org.eclipse.emf.common.util.URI uri)
boolean	isEmpty() Clients may want to check the selectable to skip its processing in case it is empty.
protected boolean	isExistingOrRenamedResourceURI(org.eclipse.emf.common.util.URI uri)
protected java.lang.Iterable<IEObjectDescription>	joinIterables(java.lang.Iterable<IEObjectDescription> liveDescriptions, java.lang.Iterable<IEObjectDescription> persistentDescriptions)
void	setContext(org.eclipse.emf.common.notify.Notifier ctx)

Methods inherited from class org.eclipse.xtext.resource.impl.ResourceSetBasedResourceDescriptions

getSelectables, setRegistry, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

LiveShadowedResourceDescriptions

public LiveShadowedResourceDescriptions()

Method Detail

setContext

public void setContext(org.eclipse.emf.common.notify.Notifier ctx)

Specified by:

setContext in interface IResourceDescriptions.IContextAware

Overrides:

setContext in class ResourceSetBasedResourceDescriptions

getResourceDescription

public IResourceDescription getResourceDescription(org.eclipse.emf.common.util.URI uri)

Description copied from interface: IResourceDescriptions

Returns the resource descriptions for the given URI. It's the client's responsibility to normalize the URI.

Specified by:

getResourceDescription in interface IResourceDescriptions

Overrides:

getResourceDescription in class ResourceSetBasedResourceDescriptions

getAllResourceDescriptions

public java.lang.Iterable<IResourceDescription> getAllResourceDescriptions()

Specified by:

getAllResourceDescriptions in interface IResourceDescriptions

Overrides:

getAllResourceDescriptions in class ResourceSetBasedResourceDescriptions

isEmpty

public boolean isEmpty()

Description copied from interface: ISelectable

Clients may want to check the selectable to skip its processing in case it is empty. Implementations should be fast and not require expensive precalculation. Selectable may return false if it is too expensive to compute the actual result.

Specified by:

isEmpty in interface ISelectable

Overrides:

isEmpty in class ResourceSetBasedResourceDescriptions

Returns:

true if the selectable does not provide any descriptions.

getResourceSet

public org.eclipse.emf.ecore.resource.ResourceSet getResourceSet()

Overrides:

getResourceSet in class ResourceSetBasedResourceDescriptions

hasDescription

protected boolean hasDescription(org.eclipse.emf.common.util.URI uri)

Overrides:

hasDescription in class ResourceSetBasedResourceDescriptions

isExistingOrRenamedResourceURI

protected boolean isExistingOrRenamedResourceURI(org.eclipse.emf.common.util.URI uri)

getExportedObjects

public java.lang.Iterable<IEObjectDescription> getExportedObjects()

Specified by:

getExportedObjects in interface ISelectable

Overrides:

getExportedObjects in class AbstractCompoundSelectable

Returns:

all exported elements. May not be null.

getExportedObjects

public java.lang.Iterable<IEObjectDescription> getExportedObjects(org.eclipse.emf.ecore.EClass type,
                                                                  QualifiedName name,
                                                                  boolean ignoreCase)

Specified by:

getExportedObjects in interface ISelectable

Overrides:

getExportedObjects in class AbstractCompoundSelectable

Returns:

all elements which match the given qualified name and type. May not be null.

joinIterables

protected java.lang.Iterable<IEObjectDescription> joinIterables(java.lang.Iterable<IEObjectDescription> liveDescriptions,
                                                                java.lang.Iterable<IEObjectDescription> persistentDescriptions)

getExportedObjectsByType

public java.lang.Iterable<IEObjectDescription> getExportedObjectsByType(org.eclipse.emf.ecore.EClass type)

Specified by:

getExportedObjectsByType in interface ISelectable

Overrides:

getExportedObjectsByType in class AbstractCompoundSelectable

Returns:

all elements which match the given type. May not be null.

getExportedObjectsByObject

public java.lang.Iterable<IEObjectDescription> getExportedObjectsByObject(org.eclipse.emf.ecore.EObject object)

Specified by:

getExportedObjectsByObject in interface ISelectable

Overrides:

getExportedObjectsByObject in class AbstractCompoundSelectable

Returns:

all elements which match the given instance. May not be null.