Example usage for org.eclipse.jdt.core IJavaElement exists

List of usage examples for org.eclipse.jdt.core IJavaElement exists

  1. HOME
  2. Java
  3. org.eclipse.jdt
  4. org.eclipse.jdt.core.*
  5. IJavaElement
  6. exists

Introduction

In this page you can find the example usage for org.eclipse.jdt.core IJavaElement exists.

Prototype

boolean exists();

Source Link

Document

Returns whether this Java element exists in the model.

Usage

From source file:org.eclipse.mylyn.internal.java.ui.search.AbstractJavaRelationProvider.java

License:Open Source License

@Override
protected void findRelated(final IInteractionElement node, int degreeOfSeparation) {
    if (node == null) {
        return;/*ww  w. j a  v  a2 s.co m*/
    }
    if (node.getContentType() == null) {
        StatusHandler.log(new Status(IStatus.WARNING, JavaUiBridgePlugin.ID_PLUGIN, "Null content type for: " //$NON-NLS-1$
                + node));
        return;
    }
    if (!node.getContentType().equals(JavaStructureBridge.CONTENT_TYPE)) {
        return;
    }
    IJavaElement javaElement = JavaCore.create(node.getHandleIdentifier());
    if (!acceptElement(javaElement) || !javaElement.exists() || javaElement instanceof IInitializer) {
        return;
    }

    IJavaSearchScope scope = createJavaSearchScope(javaElement, degreeOfSeparation);
    if (scope != null) {
        runJob(node, degreeOfSeparation, getId());
    }
}

From source file:org.eclipse.mylyn.internal.java.ui.search.AbstractJavaRelationProvider.java

License:Open Source License

private IJavaSearchScope createJavaSearchScope(IJavaElement element, int degreeOfSeparation) {
    Set<IInteractionElement> landmarks = ContextCore.getContextManager().getActiveLandmarks();
    List<IInteractionElement> interestingElements = ContextCore.getContextManager().getActiveContext()
            .getInteresting();//  ww w .j ava2s  .  c o  m

    Set<IJavaElement> searchElements = new HashSet<IJavaElement>();
    int includeMask = IJavaSearchScope.SOURCES;
    if (degreeOfSeparation == 1) {
        for (IInteractionElement landmark : landmarks) {
            AbstractContextStructureBridge bridge = ContextCore.getStructureBridge(landmark.getContentType());
            if (includeNodeInScope(landmark, bridge)) {
                Object o = bridge.getObjectForHandle(landmark.getHandleIdentifier());
                if (o instanceof IJavaElement) {
                    IJavaElement landmarkElement = (IJavaElement) o;
                    if (landmarkElement.exists()) {
                        if (landmarkElement instanceof IMember && !landmark.getInterest().isPropagated()) {
                            searchElements.add(((IMember) landmarkElement).getCompilationUnit());
                        } else if (landmarkElement instanceof ICompilationUnit) {
                            searchElements.add(landmarkElement);
                        }
                    }
                }
            }
        }
    } else if (degreeOfSeparation == 2) {
        for (IInteractionElement interesting : interestingElements) {
            AbstractContextStructureBridge bridge = ContextCore
                    .getStructureBridge(interesting.getContentType());
            if (includeNodeInScope(interesting, bridge)) {
                Object object = bridge.getObjectForHandle(interesting.getHandleIdentifier());
                if (object instanceof IJavaElement) {
                    IJavaElement interestingElement = (IJavaElement) object;
                    if (interestingElement.exists()) {
                        if (interestingElement instanceof IMember
                                && !interesting.getInterest().isPropagated()) {
                            searchElements.add(((IMember) interestingElement).getCompilationUnit());
                        } else if (interestingElement instanceof ICompilationUnit) {
                            searchElements.add(interestingElement);
                        }
                    }
                }
            }
        }
    } else if (degreeOfSeparation == 3 || degreeOfSeparation == 4) {
        for (IInteractionElement interesting : interestingElements) {
            AbstractContextStructureBridge bridge = ContextCore
                    .getStructureBridge(interesting.getContentType());
            if (includeNodeInScope(interesting, bridge)) {
                // TODO what to do when the element is not a java element,
                // how determine if a javaProject?
                IResource resource = ResourcesUiBridgePlugin.getDefault().getResourceForElement(interesting,
                        true);
                if (resource != null) {
                    IProject project = resource.getProject();
                    if (project != null && JavaProject.hasJavaNature(project) && project.exists()) {
                        IJavaProject javaProject = JavaCore.create(project);// ((IJavaElement)o).getJavaProject();
                        if (javaProject != null && javaProject.exists()) {
                            searchElements.add(javaProject);
                        }
                    }
                }
            }
        }
        if (degreeOfSeparation == 4) {

            includeMask = IJavaSearchScope.SOURCES | IJavaSearchScope.APPLICATION_LIBRARIES
                    | IJavaSearchScope.SYSTEM_LIBRARIES;
        }
    } else if (degreeOfSeparation == 5) {
        return SearchEngine.createWorkspaceScope();
    }

    if (searchElements.size() == 0) {
        return null;
    } else {
        IJavaElement[] elements = new IJavaElement[searchElements.size()];
        int j = 0;
        for (IJavaElement searchElement : searchElements) {
            elements[j] = searchElement;
            j++;
        }
        return SearchEngine.createJavaSearchScope(elements, includeMask);
    }
}

From source file:org.eclipse.mylyn.internal.java.ui.search.AbstractJavaRelationProvider.java

License:Open Source License

@Override
public IActiveSearchOperation getSearchOperation(IInteractionElement node, int limitTo,
        int degreeOfSeparation) {
    IJavaElement javaElement = JavaCore.create(node.getHandleIdentifier());
    if (javaElement == null || !javaElement.exists()) {
        return null;
    }//from w ww.java2  s .c om

    IJavaSearchScope scope = createJavaSearchScope(javaElement, degreeOfSeparation);

    if (scope == null) {
        return null;
    }

    QuerySpecification specs = new ElementQuerySpecification(javaElement, limitTo, scope,
            Messages.AbstractJavaRelationProvider_Mylyn_degree_of_separation + degreeOfSeparation);

    return new JavaSearchOperation(specs);
}

From source file:org.eclipse.mylyn.internal.java.ui.search.JavaActiveSearchResultUpdater.java

License:Open Source License

private void handleRemoved(Set removedElements) {
    Object[] elements = fResult.getElements();
    for (Object element : elements) {
        if (isContainedInRemoved(removedElements, element)) {
            if (element instanceof IJavaElement) {
                IJavaElement je = (IJavaElement) element;
                if (!je.exists()) {
                    Match[] matches = fResult.getMatches(element);
                    for (Match matche : matches) {
                        fResult.removeMatch(matche);
                    }//w w  w  . j  a v  a  2s  . c o m
                    // XXX remove edge and element
                }
            } else if (element instanceof IResource) {
                IResource resource = (IResource) element;
                if (!resource.exists()) {
                    Match[] matches = fResult.getMatches(element);
                    for (Match matche : matches) {
                        fResult.removeMatch(matche);
                    }
                    // XXX remove edge and element
                }

            }
        }
    }
}

From source file:org.eclipse.mylyn.internal.pde.ui.XmlJavaRelationProvider.java

License:Open Source License

@Override
protected void findRelated(final IInteractionElement node, int degreeOfSeparation) {
    if (!node.getContentType().equals("java")) { //$NON-NLS-1$
        return;//from   w ww .  j  a va  2  s. co m
    }
    IJavaElement javaElement = JavaCore.create(node.getHandleIdentifier());
    if (javaElement == null || javaElement instanceof ICompilationUnit || !javaElement.exists()) {
        return;
    }
    if (!acceptElement(javaElement)) {
        return;
    }

    TextSearchScope scope = createTextSearchScope(degreeOfSeparation);
    if (scope != null) {
        runJob(node, javaElement, degreeOfSeparation, getId());
    }
}

From source file:org.eclipse.mylyn.internal.sandbox.bridge.bugs.BugzillaReferencesProvider.java

License:Open Source License

protected boolean acceptElement(IJavaElement javaElement) {
    return javaElement != null && (javaElement instanceof IMember || javaElement instanceof IType)
            && javaElement.exists();
}

From source file:org.eclipse.mylyn.internal.sandbox.ui.JavaContextLabelProvider.java

License:Open Source License

private String getTextForElement(IJavaElement element) {
    if (DelegatingContextLabelProvider.isQualifyNamesMode()) {
        if (element instanceof IMember && !(element instanceof IType)) {
            String parentName = ((IMember) element).getParent().getElementName();
            if (parentName != null && parentName != "") {
                return parentName + '.' + super.getText(element);
            }/* ww  w. j  a v  a 2s  .c  om*/
        }
    }
    if (element.exists()) {
        return super.getText(element);
    } else {
        return LABEL_ELEMENT_MISSING;
    }
}

From source file:org.eclipse.mylyn.internal.sandbox.ui.views.ContextHierarchyView.java

License:Open Source License

/**
 * Public for testing./*from  ww  w.j  av a2 s.  c  om*/
 */
public void refreshHierarchy(boolean asyncRefreshMode) {
    try {
        if (root != null && root.getChildren().length > 0) {
            root.removeAllChildren();
        }
        nodeMap.clear();
        Set<IInteractionElement> landmarks = ContextCore.getContextManager().getActiveLandmarks();
        for (IInteractionElement node : landmarks) {
            IJavaElement element = null;
            if (node.getContentType().equals(JavaStructureBridge.CONTENT_TYPE)) {
                element = JavaCore.create(node.getHandleIdentifier());
            }
            if (element != null && element instanceof IType && element.exists()) {
                IType type = (IType) element;
                ITypeHierarchy hierarchy = type.newSupertypeHierarchy(null);
                if (hierarchy != null) {
                    IType[] supertypes = hierarchy.getAllSuperclasses(type);
                    List<IType> hierarchyTypes = new ArrayList<IType>(Arrays.asList(supertypes));
                    Collections.reverse(hierarchyTypes);
                    hierarchyTypes.add(type);
                    addHierarchy(root, hierarchyTypes);
                }
            }
        }

        if (!asyncRefreshMode) { // for testing
            refreshViewer();
        } else {
            PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
                public void run() {
                    refreshViewer();
                }
            });
        }
    } catch (Throwable t) {
        StatusHandler
                .log(new Status(IStatus.ERROR, JavaUiBridgePlugin.ID_PLUGIN, "Could not update viewer", t));
    }
}

From source file:org.eclipse.objectteams.otdt.internal.core.ext.ResourceMarkable.java

License:Open Source License

public boolean exists() {
    if (!this.fResource.exists())
        return false;
    IJavaElement javaElement = getJavaElement();
    do {//from  www. j ava 2  s. c o m
        if (!javaElement.exists())
            return false;
        javaElement = javaElement.getParent();
    } while (javaElement.getElementType() != IJavaElement.PACKAGE_FRAGMENT_ROOT);
    return true;
}

From source file:org.eclipse.objectteams.otdt.internal.core.MethodMapping.java

License:Open Source License

public boolean exists() {
    IJavaElement myParent = getParent();
    if (!myParent.exists())
        return false;
    try {//ww  w .  j ava2 s .com
        for (IJavaElement child : ((IType) myParent).getChildren())
            if (this.equals(child)) {
                // side-effect: fetch source range:
                if (this != child && this.declarationSourceStart == 0) {
                    MethodMapping other = (MethodMapping) child;
                    this.declarationSourceStart = other.declarationSourceStart;
                    this.declarationSourceEnd = other.declarationSourceEnd;
                    this.sourceStart = other.sourceStart;
                    this.sourceEnd = other.sourceEnd;
                }
                return true;
            }
    } catch (JavaModelException e) {
        /* nop, will return false */ }
    return false;
}