How to use

getEAnnotations

method

in

org.eclipse.emf.ecore.EStructuralFeature

public void addIndex(EStructuralFeature eStructuralFeature) {
  for (EAnnotation eAnnotation : eStructuralFeature.getEAnnotations()) {
    if (eAnnotation.getSource().equals("singleindex")) {
      throw new RuntimeException(eStructuralFeature + " already has an index");
    }
  }
  changes.add(new AddIndexChange(this, eStructuralFeature));
  EAnnotation index = EcoreFactory.eINSTANCE.createEAnnotation();
  index.setSource("singleindex");
  eStructuralFeature.getEAnnotations().add(index);
}

@Override
protected void copyContainment(EReference eReference, EObject eObject, EObject copyEObject)
{
 // The eAnnotations and eGenericType are possible containment references. 
 // We'll move them instead of copying
 //
 if (eReference == EcorePackage.Literals.ETYPED_ELEMENT__EGENERIC_TYPE)
 {
  ((ETypedElement)copyEObject).setEGenericType(((ETypedElement)eObject).getEGenericType());
 }
 else
 {
  ((EStructuralFeature)copyEObject).getEAnnotations().addAll(((EStructuralFeature)eObject).getEAnnotations());
 }
}
@Override

@Override
protected void copyContainment(EReference eReference, EObject eObject, EObject copyEObject)
{
 // The eAnnotations and eGenericType are possible containment references. 
 // We'll move them instead of copying
 //
 if (eReference == EcorePackage.Literals.ETYPED_ELEMENT__EGENERIC_TYPE)
 {
  ((ETypedElement)copyEObject).setEGenericType(((ETypedElement)eObject).getEGenericType());
 }
 else
 {
  ((EStructuralFeature)copyEObject).getEAnnotations().addAll(((EStructuralFeature)eObject).getEAnnotations());
 }
}
@Override

/**
 * Sets or removes annotations on the given structural feature to prevent generation of accessor methods in its interface.
 * @param eStructuralFeature the structural feature
 * @param accessor the type of accessor method, one of {@link #GET}, {@link #SET}, {@link #IS_SET}, or {@link #UNSET}
 * @param suppress whether the specified accessor's visibility should be suppressed
 * @since 2.1
 */
public static void setSuppressedVisibility(EStructuralFeature eStructuralFeature, int accessor, boolean suppress)
{
 if (accessor < GET || accessor > UNSET) throw new IllegalArgumentException("Invalid accessor identifier: " + accessor);
 EAnnotation eAnnotation = eStructuralFeature.getEAnnotation(GEN_MODEL_PACKAGE_NS_URI);
 if (!suppress)
 {
  if (eAnnotation != null)
  {
   eAnnotation.getDetails().removeKey(ACCESSOR_KEYS[accessor]);
  }
 }
 else
 {
  if (eAnnotation == null)
  {
   eAnnotation = EcoreFactory.eINSTANCE.createEAnnotation();
   eAnnotation.setSource(GEN_MODEL_PACKAGE_NS_URI);
   eStructuralFeature.getEAnnotations().add(eAnnotation);
  }
  eAnnotation.getDetails().put(ACCESSOR_KEYS[accessor], TRUE);
 }
}

/**
 * Sets or removes annotations on the given structural feature to prevent generation of accessor methods in its interface.
 * @param eStructuralFeature the structural feature
 * @param accessor the type of accessor method, one of {@link #GET}, {@link #SET}, {@link #IS_SET}, or {@link #UNSET}
 * @param suppress whether the specified accessor's visibility should be suppressed
 * @since 2.1
 */
public static void setSuppressedVisibility(EStructuralFeature eStructuralFeature, int accessor, boolean suppress)
{
 if (accessor < GET || accessor > UNSET) throw new IllegalArgumentException("Invalid accessor identifier: " + accessor);
 EAnnotation eAnnotation = eStructuralFeature.getEAnnotation(GEN_MODEL_PACKAGE_NS_URI);
 if (!suppress)
 {
  if (eAnnotation != null)
  {
   eAnnotation.getDetails().removeKey(ACCESSOR_KEYS[accessor]);
  }
 }
 else
 {
  if (eAnnotation == null)
  {
   eAnnotation = EcoreFactory.eINSTANCE.createEAnnotation();
   eAnnotation.setSource(GEN_MODEL_PACKAGE_NS_URI);
   eStructuralFeature.getEAnnotations().add(eAnnotation);
  }
  eAnnotation.getDetails().put(ACCESSOR_KEYS[accessor], TRUE);
 }
}

ann = EcoreFactory.eINSTANCE.createEAnnotation();
ann.setSource(Environment.OCL_NAMESPACE_URI);
result.getEAnnotations().add(ann);