/**
* Creates a JavaNode for a CU. It represents the root of a JavaNode tree, so its parent is null.
*
* @param document the document which contains the Java element
*/
public JavaNode(IDocument document) {
super(
CU,
JavaCompareUtilities.buildID(CU, "root"),
document,
0,
document.getLength()); // $NON-NLS-1$
}
/**
* Creates a JavaNode under the given parent.
*
* @param parent the parent node
* @param type the Java elements type. Legal values are from the range CU to METHOD of this class.
* @param name the name of the Java element
* @param start the starting position of the java element in the underlying document
* @param length the number of characters of the java element in the underlying document
*/
public JavaNode(JavaNode parent, int type, String name, int start, int length) {
super(
parent,
type,
JavaCompareUtilities.buildID(type, name),
parent.getDocument(),
start,
length);
parent.addChild(this);
}
/**
* Creates a place holder ASTNode for the given element.
*
* @param rewriter
* @param element
* @param delimiter the line delimiter
* @param project
* @return a ASTNode or null
* @throws CoreException
*/
private ASTNode createASTNode(
ASTRewrite rewriter, ITypedElement element, String delimiter, IJavaProject project)
throws CoreException {
if (element instanceof IStreamContentAccessor) {
String content = JavaCompareUtilities.readString((IStreamContentAccessor) element);
if (content != null) {
content = trimTextBlock(content, delimiter, project);
if (content != null) {
int type = getPlaceHolderType(element);
if (type != -1) return rewriter.createStringPlaceholder(content, type);
}
}
}
return null;
}
/**
* Returns a shared image for this Java element.
*
* <p>see ITypedInput.getImage
*/
public Image getImage() {
ImageDescriptor id = null;
switch (getTypeCode()) {
case CU:
id = JavaCompareUtilities.getImageDescriptor(IJavaElement.COMPILATION_UNIT);
break;
case PACKAGE:
id = JavaCompareUtilities.getImageDescriptor(IJavaElement.PACKAGE_DECLARATION);
break;
case IMPORT:
id = JavaCompareUtilities.getImageDescriptor(IJavaElement.IMPORT_DECLARATION);
break;
case IMPORT_CONTAINER:
id = JavaCompareUtilities.getImageDescriptor(IJavaElement.IMPORT_CONTAINER);
break;
case CLASS:
id = JavaCompareUtilities.getTypeImageDescriptor(true);
break;
case INTERFACE:
id = JavaCompareUtilities.getTypeImageDescriptor(false);
break;
case INIT:
id = JavaCompareUtilities.getImageDescriptor(IJavaElement.INITIALIZER);
break;
case CONSTRUCTOR:
case METHOD:
id = JavaCompareUtilities.getImageDescriptor(IJavaElement.METHOD);
break;
case FIELD:
id = JavaCompareUtilities.getImageDescriptor(IJavaElement.FIELD);
break;
case ENUM:
id = JavaCompareUtilities.getEnumImageDescriptor();
break;
case ANNOTATION:
id = JavaCompareUtilities.getAnnotationImageDescriptor();
break;
}
return JavaPlugin.getImageDescriptorRegistry().get(id);
}
