org.eclipse.xtext.resource.containers
Class DescriptionAddingContainer

java.lang.Object
  org.eclipse.xtext.resource.impl.AbstractCompoundSelectable
      org.eclipse.xtext.resource.impl.AbstractContainer
          org.eclipse.xtext.resource.containers.DescriptionAddingContainer

All Implemented Interfaces:

IContainer, ISelectable

public class DescriptionAddingContainer
extends AbstractContainer

A container implementation that ensures that a given resource description is part of the container. Delegates any other requests to another container.

Author:

Sebastian Zarnekow - Initial contribution and API

Nested Class Summary

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

IContainer.Manager

Field Summary

Fields inherited from interface org.eclipse.xtext.resource.IContainer

NULL_CONTAINER

Constructor Summary

DescriptionAddingContainer(IResourceDescription addMe, IContainer delegate)

Method Summary

java.lang.Iterable<IEObjectDescription>	getExportedObjects(org.eclipse.emf.ecore.EClass type, QualifiedName qualifiedName, boolean ignoreCase)
IResourceDescription	getResourceDescription(org.eclipse.emf.common.util.URI uri)
int	getResourceDescriptionCount()
java.lang.Iterable<IResourceDescription>	getResourceDescriptions()
boolean	hasResourceDescription(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.

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

getExportedObjectsByObject, getSelectables

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

getExportedObjects, getExportedObjectsByType

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.xtext.resource.ISelectable

getExportedObjects, getExportedObjectsByType

Constructor Detail

DescriptionAddingContainer

public DescriptionAddingContainer(IResourceDescription addMe,
                                  IContainer delegate)

Parameters:

addMe - the description to be merged into this container. May not be contained in the given delegate.

delegate - the backing container.

Method Detail

getResourceDescriptions

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

Returns:

the IResourceDescription contained in this container. The result is never null. The result may be a cached view on the actual content of the underlying resources.

getResourceDescriptionCount

public int getResourceDescriptionCount()

Specified by:

getResourceDescriptionCount in interface IContainer

Overrides:

getResourceDescriptionCount in class AbstractContainer

Returns:

the total number of resource descriptions returned by IContainer.getResourceDescriptions()

hasResourceDescription

public boolean hasResourceDescription(org.eclipse.emf.common.util.URI uri)

Specified by:

hasResourceDescription in interface IContainer

Overrides:

hasResourceDescription in class AbstractContainer

Returns:

true if the container can provide a resource description with the given uri.

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 AbstractCompoundSelectable

Returns:

true if the selectable does not provide any descriptions.

getExportedObjects

public java.lang.Iterable<IEObjectDescription> getExportedObjects(org.eclipse.emf.ecore.EClass type,
                                                                  QualifiedName qualifiedName,
                                                                  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.

getResourceDescription

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

Specified by:

getResourceDescription in interface IContainer

Overrides:

getResourceDescription in class AbstractContainer

Returns:

the IResourceDescription for the given URI, or null is this container does not contain such an IResourceDescription. The result may be a cached view on the actual content of the underlying resource.