Examples of org.eclipse.core.resources.IResource

org.eclipse.core.resources.IResource
The workspace analog of file system files and directories. There are exactly four types of resource: files, folders, projects and the workspace root.
File resources are similar to files in that they hold data directly. Folder resources are analogous to directories in that they hold other resources but cannot directly hold data. Project resources group files and folders into reusable clusters. The workspace root is the top level resource under which all others reside.

Features of resources:
- IResource objects are handles to state maintained by a workspace. That is, resource objects do not actually contain data themselves but rather represent resource state and give it behavior. Programmers are free to manipulate handles for resources that do not exist in a workspace but must keep in mind that some methods and operations require that an actual resource be available.
- Resources have two different kinds of properties as detailed below. All properties are keyed by qualified names.
- Resources are identified by type and by their path, which is similar to a file system path. The name of a resource is the last segment of its path. A resource's parent is located by removing the last segment (the resource's name) from the resource's full path.
- Resources can be local or non-local. A non-local resource is one whose contents and properties have not been fetched from a repository.
- Phantom resources represent incoming additions or outgoing deletions which have yet to be reconciled with a synchronization partner.
This interface is not intended to be implemented by clients.

Resources implement the IAdaptable interface; extensions are managed by the platform's adapter manager.
@see IWorkspace @see Platform#getAdapterManager()

    case IJavaElement.PACKAGE_FRAGMENT_ROOT:
      IPackageFragmentRoot root = (IPackageFragmentRoot)element;
      IPath rootPath = root.getPath();
      containerPath = root.getKind() == IPackageFragmentRoot.K_SOURCE ? root.getParent().getPath() : rootPath;
      containerPathToString = containerPath.getDevice() == null ? containerPath.toString() : containerPath.toOSString();
      IResource rootResource = root.getResource();
      String projectPath = root.getJavaProject().getPath().toString();
      if (rootResource != null && rootResource.isAccessible()) {
        String relativePath = Util.relativePath(rootResource.getFullPath(), containerPath.segmentCount());
        add(projectPath, relativePath, containerPathToString, false/*not a package*/, null);
      } else {
        add(projectPath, "", containerPathToString, false/*not a package*/, null); //$NON-NLS-1$
      }
      break;
    case IJavaElement.PACKAGE_FRAGMENT:
      root = (IPackageFragmentRoot)element.getParent();
      projectPath = root.getJavaProject().getPath().toString();
      if (root.isArchive()) {
        String relativePath = Util.concatWith(((PackageFragment) element).names, '/');
        containerPath = root.getPath();
        containerPathToString = containerPath.getDevice() == null ? containerPath.toString() : containerPath.toOSString();
        add(projectPath, relativePath, containerPathToString, true/*package*/, null);
      } else {
        IResource resource = element.getResource();
        if (resource != null) {
          if (resource.isAccessible()) {
            containerPath = root.getKind() == IPackageFragmentRoot.K_SOURCE ? root.getParent().getPath() : root.getPath();
          } else {
            // for working copies, get resource container full path
            containerPath = resource.getParent().getFullPath();
          }
          containerPathToString = containerPath.getDevice() == null ? containerPath.toString() : containerPath.toOSString();
          String relativePath = Util.relativePath(resource.getFullPath(), containerPath.segmentCount());
          add(projectPath, relativePath, containerPathToString, true/*package*/, null);
        }
      }
      break;
    default:

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    }
    method = type.getMethod(new String(bindingSelector), parameterTypes);
  }
  if (method == null || knownMethods.addIfNotIncluded(method) == null) return;


  IResource resource = type.getResource();
  IBinaryType info = null;
  if (isBinary) {
    if (resource == null)
      resource = type.getJavaProject().getProject();
    info = locator.getBinaryInfo((org.aspectj.org.eclipse.jdt.internal.core.ClassFile)type.getClassFile(), resource);

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  // lookup - inside the container
  if (path.getDevice() == null) { // container relative paths should not contain a device 
                        // (see http://dev.eclipse.org/bugs/show_bug.cgi?id=18684)
                        // (case of a workspace rooted at d:\ )
    IResource resource = container.findMember(path);
    if (resource != null){
      if (!checkResourceExistence ||resource.exists()) return resource;
      return null;
    }
  }
  
  // if path is relative, it cannot be an external path

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  SimpleLookupTable dirTable = (SimpleLookupTable) directoryCache.get(qualifiedPackageName);
  if (dirTable == missingPackageHolder) return null; // package exists in another classpath directory or jar
  if (dirTable != null) return dirTable;


  try {
    IResource container = sourceFolder.findMember(qualifiedPackageName); // this is a case-sensitive check
    if (container instanceof IContainer) {
      IResource[] members = ((IContainer) container).members();
      dirTable = new SimpleLookupTable();
      for (int i = 0, l = members.length; i < l; i++) {
        IResource m = members[i];
        String name;
        if (m.getType() == IResource.FILE) {
          int index = Util.indexOfJavaLikeExtension(name = m.getName());
          if (index >= 0) {
            String fullPath = m.getFullPath().toString();
            if (!org.aspectj.org.eclipse.jdt.internal.compiler.util.Util.isExcluded(fullPath.toCharArray(), this.fulInclusionPatternChars, this.fullExclusionPatternChars, false/*not a folder path*/)) {
              dirTable.put(name.substring(0, index), m);
            }
          }
        }

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   * Note that projects being deleted are checked in deleting(IProject).
   * In all cases, add the project's dependents to the list of projects to update
   * so that the classpath related markers can be updated.
   */
  private void checkProjectsBeingAddedOrRemoved(IResourceDelta delta) {
    IResource resource = delta.getResource();
    IResourceDelta[] children = null;
  
    switch (resource.getType()) {
      case IResource.ROOT :
        // workaround for bug 15168 circular errors not reported 
        this.state.getOldJavaProjecNames(); // force list to be computed
        children = delta.getAffectedChildren();
        break;

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        // element is moved
        addToParentInfo(element);
        close(element);
      
        IPath movedFromPath = delta.getMovedFromPath();
        IResource res = delta.getResource();
        IResource movedFromRes;
        if (res instanceof IFile) {
          movedFromRes = res.getWorkspace().getRoot().getFile(movedFromPath);
        } else {
          movedFromRes = res.getWorkspace().getRoot().getFolder(movedFromPath);
        }

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    } else {
      // element is moved
      close(element);
      removeFromParentInfo(element);
      IPath movedToPath = delta.getMovedToPath();
      IResource res = delta.getResource();
      IResource movedToRes;
      switch (res.getType()) {
        case IResource.PROJECT:
          movedToRes = res.getWorkspace().getRoot().getProject(movedToPath.lastSegment());
          break;
        case IResource.FOLDER:

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    while (this.currentElement != null) {
      IPath currentElementPath = null;
      if (this.currentElement instanceof IPackageFragmentRoot) {
        currentElementPath = ((IPackageFragmentRoot)this.currentElement).getPath();
      } else {
        IResource currentElementResource = this.currentElement.getResource();
        if (currentElementResource != null) {
          currentElementPath = currentElementResource.getFullPath();
        }
      }
      if (currentElementPath != null) {
        if (this.currentElement instanceof IPackageFragment 
          && ((IPackageFragment) this.currentElement).isDefaultPackage()

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      // get the workspace delta, and start processing there.
      IResourceDelta[] deltas = changes.getAffectedChildren();
      for (int i = 0; i < deltas.length; i++) {
        IResourceDelta delta = deltas[i];
        IResource res = delta.getResource();
        
        // find out the element type
        RootInfo rootInfo = null;
        int elementType;
        IProject proj = (IProject)res;
        boolean wasJavaProject = this.state.findJavaProject(proj.getName()) != null;
        boolean isJavaProject = JavaProject.hasJavaNature(proj);
        if (!wasJavaProject && !isJavaProject) {
          elementType = NON_JAVA_RESOURCE;
        } else {
          rootInfo = this.enclosingRootInfo(res.getFullPath(), delta.getKind());
          if (rootInfo != null && rootInfo.isRootOfProject(res.getFullPath())) {
            elementType = IJavaElement.PACKAGE_FRAGMENT_ROOT;
          } else {
            elementType = IJavaElement.JAVA_PROJECT; 
          }
        }

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   * @see IResource 
   */
  public void resourceChanged(IResourceChangeEvent event) {


    int eventType = this.overridenEventType == -1 ? event.getType() : this.overridenEventType;
    IResource resource = event.getResource();
    IResourceDelta delta = event.getDelta();
    
    switch(eventType){
      case IResourceChangeEvent.PRE_DELETE :
        try {
          if(resource.getType() == IResource.PROJECT 
            && ((IProject) resource).hasNature(JavaCore.NATURE_ID)) {
              
            deleting((IProject)resource);
          }
        } catch(CoreException e){

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