Examples of org.eclipse.jdt.core.search.SearchPattern

org.eclipse.jdt.core.search.SearchPattern
A search pattern defines how search results are found. Use SearchPattern.createPattern to create a search pattern.
Search patterns are used during the search phase to decode index entries that were added during the indexing phase (see {@link SearchDocument#addIndexEntry(char[],char[])}). When an index is queried, the index categories and keys to consider are retrieved from the search pattern using {@link #getIndexCategories()} and{@link #getIndexKey()}, as well as the match rule (see {@link #getMatchRule()}). A blank pattern is then created (see {@link #getBlankPattern()}). This blank pattern is used as a record as follows. For each index entry in the given index categories and that starts with the given key, the blank pattern is fed using {@link #decodeIndexKey(char[])}. The original pattern is then asked if it matches the decoded key using {@link #matchesDecodedKey(SearchPattern)}. If it matches, a search document is created for this index entry using {@link SearchParticipant#getDocument(String)}.
This class is intended to be sub-classed by clients. A default behavior is provided for each of the methods above, that clients can override if they wish.
@see #createPattern(org.eclipse.jdt.core.IJavaElement,int) @see #createPattern(String,int,int,int) @since 3.0

  public void compute() throws CoreException {
    this.reset();
    this.wl.addAll(this.constFields);
    while (this.wl.hasNext()) {
      final IJavaElement je = (IJavaElement) this.wl.next();
      final SearchPattern pattern = SearchPattern.createPattern(je,
          IJavaSearchConstants.ALL_OCCURRENCES,
          SearchPattern.R_EXACT_MATCH);
      final SearchRequestor requestor = new SearchRequestor() {
        public void acceptSearchMatch(SearchMatch match)
            throws CoreException {

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   *             if the search failed
   */
  private boolean isCalledFromOutside(IMethod method) throws CoreException {
    CompareTypeSearchRequestor requestor = new CompareTypeSearchRequestor(
        (IType) method.getParent());
    SearchPattern pattern = SearchPattern.createPattern(method,
        IJavaSearchConstants.REFERENCES, GENERICS_AGNOSTIC_MATCH_RULE);
    IJavaSearchScope scope = SearchEngine.createWorkspaceScope();
    SearchEngine searchEngine = new SearchEngine();
    searchEngine
        .search(pattern, new SearchParticipant[] { SearchEngine

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  @Test
  public void learning_SearchEngine() throws Exception {
    SearchEngine engine = new SearchEngine();
    IJavaSearchScope scope = SearchEngine.createWorkspaceScope();
    SearchPattern pattern = SearchPattern.createPattern("TestClass2", IJavaSearchConstants.CLASS, IJavaSearchConstants.DECLARATIONS, SearchPattern.R_FULL_MATCH);
    SearchParticipant[] participants = new SearchParticipant[] {SearchEngine.getDefaultSearchParticipant()};
    SearchRequestor requestor = new SearchRequestor(){
    
      @Override
      public void acceptSearchMatch(SearchMatch match) throws CoreException {

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    }
    return true;
  }


  private void acceptClassPattern(String patternString) {
    SearchPattern pattern = SearchPattern.createPattern(patternString, IJavaSearchConstants.TYPE, IJavaSearchConstants.DECLARATIONS, SearchPattern.R_EQUIVALENT_MATCH);
    search(pattern);
  }

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    SearchPattern pattern = SearchPattern.createPattern(patternString, IJavaSearchConstants.TYPE, IJavaSearchConstants.DECLARATIONS, SearchPattern.R_EQUIVALENT_MATCH);
    search(pattern);
  }


  private void acceptMethodPattern(String patternString) {
    SearchPattern pattern = createMethodPattern(patternString);
    search(pattern);
  }

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      JavaDocActivator.getDefault().handleSystemError(e, this);
    }
  }


  private SearchPattern createMethodPattern(String patternString) {
    SearchPattern pattern;
    patternString = patternString.replace(METHOD_PREFIX, ".");
    pattern= SearchPattern.createPattern(patternString, IJavaSearchConstants.METHOD, IJavaSearchConstants.DECLARATIONS, SearchPattern.R_ERASURE_MATCH);
    return pattern;
  }

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    return rels.values().iterator();
  }
  
  public void populate(IProgressMonitor monitor) throws CoreException {
    SearchEngine engine = new SearchEngine();
    SearchPattern pattern = SearchPattern.createPattern("Relation", IJavaSearchConstants.ANNOTATION_TYPE, IJavaSearchConstants.ANNOTATION_TYPE_REFERENCE, SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE);
    SearchParticipant[] participants = new SearchParticipant[] {SearchEngine.getDefaultSearchParticipant()};
    IJavaSearchScope scope = SearchEngine.createWorkspaceScope();
    
    engine.search(pattern, participants, scope, this, monitor);
  }

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    this.rels = rels;
  }
  
  public void populate(IProgressMonitor monitor) throws CoreException {
    SearchEngine engine = new SearchEngine();
    SearchPattern pattern = SearchPattern.createPattern("Constraint", IJavaSearchConstants.ANNOTATION_TYPE, IJavaSearchConstants.ANNOTATION_TYPE_REFERENCE, SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE);
    SearchParticipant[] participants = new SearchParticipant[] {SearchEngine.getDefaultSearchParticipant()};
    IJavaSearchScope scope = SearchEngine.createWorkspaceScope();
    
    ConstraintRequestor consReq = new ConstraintRequestor(rels);    
    engine.search(pattern, participants, scope, consReq, monitor);

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    inferRules.add(inf);
  }


  public void populate(IProgressMonitor monitor) throws CoreException {
    SearchEngine engine = new SearchEngine();
    SearchPattern pattern = SearchPattern.createPattern("Infer", IJavaSearchConstants.ANNOTATION_TYPE, IJavaSearchConstants.ANNOTATION_TYPE_REFERENCE, SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE);
    SearchParticipant[] participants = new SearchParticipant[] {SearchEngine.getDefaultSearchParticipant()};
    IJavaSearchScope scope = SearchEngine.createWorkspaceScope();
    InferRequestor requestor = new InferRequestor(rels);
    
    engine.search(pattern, participants, scope, requestor, monitor);

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   * @return A possibly empty array of IType results found.
   */
  public static IType[] findTypes(IJavaProject javaProject, String name)
    throws Exception
  {
    SearchPattern pattern =
      SearchPattern.createPattern(name,
          IJavaSearchConstants.TYPE,
          IJavaSearchConstants.DECLARATIONS,
          SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE);
    IJavaSearchScope scope =

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