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()

  int type = element.getElementType();
  if (type <= IJavaElement.PACKAGE_FRAGMENT_ROOT || type > IJavaElement.COMPILATION_UNIT)
    error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
  else if (type == IJavaElement.PACKAGE_FRAGMENT && element instanceof JarPackageFragment)
    error(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, element);
  IResource resource = element.getResource();
  if (resource instanceof IFolder) {
    if (resource.isLinked()) {
      error(IJavaModelStatusConstants.INVALID_RESOURCE, element);
    }
  }
}

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        } else {
          // create binary type from file
          if (classFile.getPackageFragmentRoot().isArchive()) {
            binaryType = this.builder.createInfoFromClassFileInJar(classFile);
          } else {
            IResource file = classFile.getResource();
            binaryType = this.builder.createInfoFromClassFile(classFile, file);
          }
        }
        if (binaryType != null) {
          try {

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  protected String getMainTaskName() {
    return Messages.operation_deleteElementProgress; 
  }
  protected ISchedulingRule getSchedulingRule() {
    if (this.elementsToProcess != null && this.elementsToProcess.length == 1) {
      IResource resource = this.elementsToProcess[0].getResource();
      if (resource != null)
        return ResourcesPlugin.getWorkspace().getRuleFactory().modifyRule(resource);
    }
    return super.getSchedulingRule();
  }

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    if (length > 0) {
      IJavaProject project = getJavaProject();
      String sourceLevel = project.getOption(JavaCore.COMPILER_SOURCE, true);
      String complianceLevel = project.getOption(JavaCore.COMPILER_COMPLIANCE, true);
      for (int i = 0; i < length; i++) {
        IResource child = members[i];
        if (child.getType() != IResource.FOLDER
            && !Util.isExcluded(child, inclusionPatterns, exclusionPatterns)) {
          IJavaElement childElement;
          if (kind == IPackageFragmentRoot.K_SOURCE && Util.isValidCompilationUnitName(child.getName(), sourceLevel, complianceLevel)) {
            childElement = new CompilationUnit(this, child.getName(), DefaultWorkingCopyOwner.PRIMARY);
            vChildren.add(childElement);
          } else if (kind == IPackageFragmentRoot.K_BINARY && Util.isValidClassFileName(child.getName(), sourceLevel, complianceLevel)) {
            childElement = getClassFile(child.getName());
            vChildren.add(childElement);
          }
        }
      }
    }

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}
/**
 * @see IJavaElement#getUnderlyingResource()
 */
public IResource getUnderlyingResource() throws JavaModelException {
  IResource rootResource = this.parent.getUnderlyingResource();
  if (rootResource == null) {
    //jar package fragment root that has no associated resource
    return null;
  }
  // the underlying resource may be a folder or a project (in the case that the project folder
  // is atually the package fragment root)
  if (rootResource.getType() == IResource.FOLDER || rootResource.getType() == IResource.PROJECT) {
    IContainer folder = (IContainer) rootResource;
    String[] segs = this.names;
    for (int i = 0; i < segs.length; ++i) {
      IResource child = folder.findMember(segs[i]);
      if (child == null || child.getType() != IResource.FOLDER) {
        throw newNotPresentException();
      }
      folder = (IFolder) child;
    }
    return folder;

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      if (length > 0) {
        String sourceLevel = project.getOption(JavaCore.COMPILER_SOURCE, true);
        String complianceLevel = project.getOption(JavaCore.COMPILER_COMPLIANCE, true);
        IClasspathEntry[] classpath = project.getResolvedClasspath();
        for (int i = 0; i < length; i++) {
          IResource res = members[i];
          switch (res.getType()) {
            case IResource.FILE :
              IPath resFullPath = res.getFullPath();
              String resName = res.getName();
            
              // ignore a jar file on the classpath
              if (isClasspathResolved && org.aspectj.org.eclipse.jdt.internal.compiler.util.Util.isArchiveFileName(resName) && this.isClasspathEntryOrOutputLocation(resFullPath, classpath, projectOutput)) {
                break;
              }
              // ignore .java file if src == project
              if (srcIsProject 
                  && Util.isValidCompilationUnitName(resName, sourceLevel, complianceLevel)
                  && !Util.isExcluded(res, inclusionPatterns, exclusionPatterns)) {
                break;
              }
              // ignore .class file if bin == project
              if (binIsProject && Util.isValidClassFileName(resName, sourceLevel, complianceLevel)) {
                break;
              }
              // else add non java resource
              if (resources.length == resourcesCounter) {
                // resize
                System.arraycopy(
                    resources,
                    0,
                    (resources = new IResource[resourcesCounter * 2]),
                    0,
                    resourcesCounter);
              }
              resources[resourcesCounter++] = res;
              break;
            case IResource.FOLDER :
              resFullPath = res.getFullPath();
            
              // ignore non-excluded folders on the classpath or that correspond to an output location
              if ((srcIsProject && !Util.isExcluded(res, inclusionPatterns, exclusionPatterns) && Util.isValidFolderNameForPackage(res.getName(), sourceLevel, complianceLevel))
                  || (isClasspathResolved && this.isClasspathEntryOrOutputLocation(resFullPath, classpath, projectOutput))) {
                break;
              }
              // else add non java resource
              if (resources.length == resourcesCounter) {

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   */
  protected CompilationUnit getCompilationUnit() {
    return (CompilationUnit)getElementToProcess();
  }
  protected ISchedulingRule getSchedulingRule() {
    IResource resource = getElementToProcess().getResource();
    if (resource == null) return null;
    IWorkspace workspace = resource.getWorkspace();
    if (resource.exists()) {
      return workspace.getRuleFactory().modifyRule(resource);
    } else {
      return workspace.getRuleFactory().createRule(resource);
    }
  }

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      IWorkspaceRoot root = this.project.getWorkspace().getRoot();
      for (int i = 0; i < sourceEntriesNumber; i++) {
        if (this.isCancelled) return false;


        IClasspathEntry entry = sourceEntries[i];
        IResource sourceFolder = root.findMember(entry.getPath());
        if (sourceFolder != null) {
          
          // collect output locations if source is project (see http://bugs.eclipse.org/bugs/show_bug.cgi?id=32041)
          final HashSet outputs = new HashSet();
          if (sourceFolder.getType() == IResource.PROJECT) {
            // Do not create marker while getting output location (see bug 41859)
            outputs.add(javaProject.getOutputLocation());
            for (int j = 0; j < sourceEntriesNumber; j++) {
              IPath output = sourceEntries[j].getOutputLocation();
              if (output != null) {
                outputs.add(output);
              }
            }
          }
          final boolean hasOutputs = !outputs.isEmpty();
          
          final char[][] inclusionPatterns = ((ClasspathEntry) entry).fullInclusionPatternChars();
          final char[][] exclusionPatterns = ((ClasspathEntry) entry).fullExclusionPatternChars();
          if (max == 0) {
            sourceFolder.accept(
              new IResourceProxyVisitor() {
                public boolean visit(IResourceProxy proxy) {
                  if (isCancelled) return false;
                  switch(proxy.getType()) {
                    case IResource.FILE :
                      if (org.aspectj.org.eclipse.jdt.internal.core.util.Util.isJavaLikeFileName(proxy.getName())) {
                        IFile file = (IFile) proxy.requestResource();
                        if (exclusionPatterns != null || inclusionPatterns != null)
                          if (Util.isExcluded(file, inclusionPatterns, exclusionPatterns))
                            return false;
                        indexedFileNames.put(Util.relativePath(file.getFullPath(), 1/*remove project segment*/), file);
                      }
                      return false;
                    case IResource.FOLDER :
                      if (exclusionPatterns != null && inclusionPatterns == null) {
                        // if there are inclusion patterns then we must walk the children
                        if (Util.isExcluded(proxy.requestFullPath(), inclusionPatterns, exclusionPatterns, true)) 
                            return false;
                      }
                      if (hasOutputs && outputs.contains(proxy.requestFullPath()))
                        return false;
                  }
                  return true;
                }
              },
              IResource.NONE
            );
          } else {
            sourceFolder.accept(
              new IResourceProxyVisitor() {
                public boolean visit(IResourceProxy proxy) throws CoreException {
                  if (isCancelled) return false;
                  switch(proxy.getType()) {
                    case IResource.FILE :

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  char[] bindingName = fieldBinding.name;
  IField field = type.getField(new String(bindingName));
  if (knownFields.addIfNotIncluded(field) == null) return;


  IResource resource = type.getResource();
  boolean isBinary = type.isBinary();
  IBinaryType info = null;
  if (isBinary) {
    if (resource == null)
      resource = type.getJavaProject().getProject();

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}
protected void reportDeclaration(ReferenceBinding typeBinding, int maxType, MatchLocator locator, SimpleSet knownTypes) throws CoreException {
  IType type = locator.lookupType(typeBinding);
  if (type == null) return; // case of a secondary type


  IResource resource = type.getResource();
  boolean isBinary = type.isBinary();
  IBinaryType info = null;
  if (isBinary) {
    if (resource == null)
      resource = type.getJavaProject().getProject();

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