org.eclipse.xtext.scoping.impl

Class DelegatingScopeProvider

java.lang.Object

org.eclipse.xtext.scoping.impl.AbstractScopeProvider

org.eclipse.xtext.scoping.impl.DelegatingScopeProvider

All Implemented Interfaces:

IDelegatingScopeProvider, IScopeProvider

public class DelegatingScopeProvider
extends AbstractScopeProvider
implements IDelegatingScopeProvider

This implementation skips the declarative API of the AbstractDeclarativeScopeProvider while still delegating to another provider. Meant to be used as the base class for custom scope providers.

Since:

2.4

Author:

Sebastian Zarnekow - Initial contribution and API

Constructor Summary

Constructors

Constructor and Description
DelegatingScopeProvider()

Method Summary

Methods

Modifier and Type	Method and Description
protected IScope	delegateGetScope(org.eclipse.emf.ecore.EObject context, org.eclipse.emf.ecore.EReference reference)
IScopeProvider	getDelegate() Provides access to the delegate.
IScope	getScope(org.eclipse.emf.ecore.EObject context, org.eclipse.emf.ecore.EReference reference) Returns a scope for the given context.
void	setDelegate(IScopeProvider delegate)

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatingScopeProvider

public DelegatingScopeProvider()

Method Detail

getScope

public IScope getScope(org.eclipse.emf.ecore.EObject context,
              org.eclipse.emf.ecore.EReference reference)

Description copied from interface: IScopeProvider

Returns a scope for the given context. The scope provides access to the compatible visible EObjects for a given reference.

Specified by:

getScope in interface IScopeProvider

Parameters:

context - the element from which an element shall be referenced. It doesn't need to be the element containing the reference, it is just used to find the most inner scope for given EReference.

reference - the reference for which to get the scope.

Returns:

IScope representing the inner most IScope for the passed context and reference. Note for implementors: The result may not be null. Return IScope.NULLSCOPE instead.

delegateGetScope

protected IScope delegateGetScope(org.eclipse.emf.ecore.EObject context,
                      org.eclipse.emf.ecore.EReference reference)

setDelegate

public void setDelegate(IScopeProvider delegate)

getDelegate

public IScopeProvider getDelegate()

Description copied from interface: IDelegatingScopeProvider

Provides access to the delegate.

Specified by:

getDelegate in interface IDelegatingScopeProvider

Returns:

the delegate. May not be null.