Package org.eclipse.xtext.resource
Class DefaultFragmentProvider
- java.lang.Object
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- org.eclipse.xtext.resource.DefaultFragmentProvider
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- All Implemented Interfaces:
IFragmentProvider
public class DefaultFragmentProvider extends java.lang.Object implements IFragmentProvider
TODO: think about an efficient way to compute fragments.
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Nested Class Summary
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Nested classes/interfaces inherited from interface org.eclipse.xtext.resource.IFragmentProvider
IFragmentProvider.Fallback
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Constructor Summary
Constructors Constructor Description DefaultFragmentProvider()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description 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.
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Method Detail
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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 interfaceIFragmentProvider
- 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 ofResource.getURIFragment(EObject)
.- Returns:
- the fragment, which can be an arbitrary string but must be unique
within a resource. May not return
null
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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 interfaceIFragmentProvider
- 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 ofResource.getEObject(String)
.- Returns:
- the resolved object or
null
if the fragment could not be resolved to an object.
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