org.eclipse.xtext.resource
Class DefaultFragmentProvider
java.lang.Object
org.eclipse.xtext.resource.DefaultFragmentProvider
- All Implemented Interfaces:
- IFragmentProvider
public class DefaultFragmentProvider
- extends java.lang.Object
- implements IFragmentProvider
TODO: think about an efficient way to compute fragments.
- Author:
- Sven Efftinge - Initial contribution and API, Peter Friese, Sebastian Zarnekow
Method Summary |
org.eclipse.emf.ecore.EObject |
getEObject(org.eclipse.emf.ecore.resource.Resource resource,
java.lang.String fragment,
IFragmentProvider.Fallback fallback)
Locates an EObject in a resource by its fragment. |
java.lang.String |
getFragment(org.eclipse.emf.ecore.EObject obj,
IFragmentProvider.Fallback fallback)
Computes the URI fragment (local ID) of the given object. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
DefaultFragmentProvider
public DefaultFragmentProvider()
getFragment
public java.lang.String getFragment(org.eclipse.emf.ecore.EObject obj,
IFragmentProvider.Fallback fallback)
- Description copied from interface:
IFragmentProvider
- Computes the URI fragment (local ID) of the given object.
- Specified by:
getFragment
in interface IFragmentProvider
- Parameters:
obj
- the EObject to compute the fragment for.fallback
- if the default behavior should be used, delegate the
computation of the fragment to the default implementation of
Resource.getURIFragment(EObject)
.
- Returns:
- the fragment, which can be an arbitrary string but must be unique
within a resource. May not return
null
.
getEObject
public org.eclipse.emf.ecore.EObject getEObject(org.eclipse.emf.ecore.resource.Resource resource,
java.lang.String fragment,
IFragmentProvider.Fallback fallback)
- Description copied from interface:
IFragmentProvider
- Locates an EObject in a resource by its fragment.
- Specified by:
getEObject
in interface IFragmentProvider
- Parameters:
resource
- the resource serves as context instance.fragment
- the fragment of the object.fallback
- if the fragment was not created by this provider, delegate the
resolution to the default implementation of
Resource.getEObject(String)
.
- Returns:
- the resolved object or
null
if the fragment could not be resolved to an object.