Examples of org.eclipse.jdt.core.dom.VariableDeclarationFragment

org.eclipse.jdt.core.dom.VariableDeclarationFragment
Variable declaration fragment AST node type, used in field declarations, local variable declarations, ForStatement initializers, and LambdaExpression parameters. In contrast to SingleVariableDeclaration, fragments are missing the modifiers and the type; these are either located in the fragment's parent node, or inferred (for lambda parameters).
```
 VariableDeclarationFragment: Identifier { Dimension } [ = Expression ] 
```
@since 2.0 @noinstantiate This class is not intended to be instantiated by clients.

   * @return the created {@link VariableDeclarationStatement}
   */
  protected VariableDeclarationStatement createNewVariableDeclarationStatement(
      VariableBindingManager manager, AST ast) {
    // create an empty variable declaration fragment
    VariableDeclarationFragment fragment = ast
        .newVariableDeclarationFragment();


    // set the initilizer
    fragment.setInitializer((Expression) ASTNode.copySubtree(ast, manager
        .getInitializer()));


    // set the name
    fragment.setName((SimpleName) ASTNode.copySubtree(ast, manager
        .getVariableDeclarationFragment().getName()));


    // create a statement for the fragment
    VariableDeclarationStatement statement = ast
        .newVariableDeclarationStatement(fragment);

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        checkForNull(type, "type declaration");
        checkForNull(fieldName, "field name");


        for (FieldDeclaration field : type.getFields()) {
            for (Object fragObj : field.fragments()) {
                VariableDeclarationFragment fragment = (VariableDeclarationFragment) fragObj;
                if (fieldName.equals(fragment.getName().getIdentifier())) {
                    return field;
                }
            }
        }

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   * 
   * @see net.sourceforge.earticleast.app.AbstractManipulator#deleteOldVariableDeclaration(net.sourceforge.earticleast.app.VariableBindingManager)
   */
  @Override
  protected void deleteOldVariableDeclaration(VariableBindingManager manager) {
    VariableDeclarationFragment fragment = manager
        .getVariableDeclarationFragment();
    VariableDeclarationStatement statement = (VariableDeclarationStatement) fragment
        .getParent();
    fragment.delete();
    if (statement.fragments().size() == 0) {
      statement.delete();
    }
  }

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   *         reference
   */
  @Override
  public boolean visit(VariableDeclarationStatement node) {
    for (Iterator iter = node.fragments().iterator(); iter.hasNext();) {
      VariableDeclarationFragment fragment = (VariableDeclarationFragment) iter
          .next();


      // VariableDeclarationFragment: is the plain variable declaration
      // part. Example:
      // "int x=0, y=0;" contains two VariableDeclarationFragments, "x=0"
      // and "y=0"


      IVariableBinding binding = fragment.resolveBinding();
      VariableBindingManager manager = new VariableBindingManager(
          fragment); // create the manager fro the fragment
      localVariableManagers.put(binding, manager);
      manager.variableInitialized(fragment.getInitializer());
      // first assignment is the initalizer
    }
    return false; // prevent that SimpleName is interpreted as
    // reference
  }

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   * 
   * @see net.sourceforge.earticleast.app.AbstractManipulator#addNewVariableDeclaration(net.sourceforge.earticleast.app.VariableBindingManager)
   */
  @Override
  protected void addNewVariableDeclaration(VariableBindingManager manager) {
    VariableDeclarationFragment fragment = manager
        .getVariableDeclarationFragment();
    VariableDeclarationStatement statement = (VariableDeclarationStatement) fragment
        .getParent();
    // add a remove command to the protocol
    rewrite.remove(fragment, null);
    ListRewrite fragmentsListRewrite = rewrite.getListRewrite(statement,
        VariableDeclarationStatement.FRAGMENTS_PROPERTY);

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   * @return the created {@link VariableDeclarationStatement}
   */
  protected VariableDeclarationStatement createNewVariableDeclarationStatement(
      VariableBindingManager manager, AST ast) {
    // create an empty variable declaration fragment
    VariableDeclarationFragment fragment = ast
        .newVariableDeclarationFragment();


    // set the initilizer
    fragment.setInitializer((Expression) ASTNode.copySubtree(ast, manager
        .getInitializer()));


    // set the name
    fragment.setName((SimpleName) ASTNode.copySubtree(ast, manager
        .getVariableDeclarationFragment().getName()));


    // create a statement for the fragment
    VariableDeclarationStatement statement = ast
        .newVariableDeclarationStatement(fragment);

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        });
      } else if (oldFieldState && !newFieldState) {
        ExecutionUtils.run(javaInfoRoot, new RunnableEx() {
          public void run() throws Exception {
            for (FieldDeclaration field : rootNode.getFields()) {
              VariableDeclarationFragment fragment = DomGenerics.fragments(field).get(0);
              if (fragment.getName().getIdentifier().equals(oldVariable)) {
                javaInfoRoot.getEditor().removeBodyDeclaration(field);
                return;
              }
            }
            Assert.fail("Undefine binding field: " + oldVariable);
          }
        });
      } else if (oldFieldState && newFieldState) {
        ExecutionUtils.run(javaInfoRoot, new RunnableEx() {
          public void run() throws Exception {
            for (FieldDeclaration field : rootNode.getFields()) {
              VariableDeclarationFragment fragment = DomGenerics.fragments(field).get(0);
              if (fragment.getName().getIdentifier().equals(oldVariable)) {
                javaInfoRoot.getEditor().setIdentifier(fragment.getName(), newVariable);
                return;
              }
            }
            Assert.fail("Undefine binding field: " + oldVariable);
          }

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      String result = null;
      for (Object f : field.fragments())
      {
         if (f instanceof VariableDeclarationFragment)
         {
            VariableDeclarationFragment frag = (VariableDeclarationFragment) f;
            result = frag.getName().getFullyQualifiedName();
            break;
         }
      }
      return result;
   }

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   {
      for (Object f : field.fragments())
      {
         if (f instanceof VariableDeclarationFragment)
         {
            VariableDeclarationFragment frag = (VariableDeclarationFragment) f;
            frag.setName(ast.newSimpleName(name));
            break;
         }
      }
      return this;
   }

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      String result = null;
      for (Object f : field.fragments())
      {
         if (f instanceof VariableDeclarationFragment)
         {
            VariableDeclarationFragment frag = (VariableDeclarationFragment) f;
            result = frag.getInitializer().toString();
            break;
         }
      }
      return result;
   }

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