Examples of org.eclipse.jdt.core.IJavaProject

org.eclipse.jdt.core.IJavaProject
A Java project represents a view of a project resource in terms of Java elements such as package fragments, types, methods and fields. A project may contain several package roots, which contain package fragments. A package root corresponds to an underlying folder or JAR.
Each Java project has a classpath, defining which folders contain source code and where required libraries are located. Each Java project also has an output location, defining where the builder writes .class files. A project that references packages in another project can access the packages by including the required project in a classpath entry. The Java model will present the source elements in the required project; when building, the compiler will use the corresponding generated class files from the required project's output location(s)). The classpath format is a sequence of classpath entries describing the location and contents of package fragment roots.
Java project elements need to be opened before they can be navigated or manipulated. The children of a Java project are the package fragment roots that are defined by the classpath and contained in this project (in other words, it does not include package fragment roots for other projects). The children (i.e. the package fragment roots) appear in the order they are defined by the classpath.

An instance of one of these handles can be created via JavaCore.create(project).
@see JavaCore#create(org.eclipse.core.resources.IProject) @see IClasspathEntry @noimplement This interface is not intended to be implemented by clients.

            typePageLinkActivated();
        }
    }


    private void typePageLinkActivated() {
        IJavaProject project = getJavaProject();
        if (project != null) {
            PreferenceDialog dialog = PreferencesUtil.createPropertyDialogOn(getShell(), project.getProject(), CodeTemplatePreferencePage.PROP_ID, null, null);
            dialog.open();
        } else {
            String title = NewWizardMessages.NewTypeWizardPage_configure_templates_title;
            String message = NewWizardMessages.NewTypeWizardPage_configure_templates_message;
            MessageDialog.openInformation(getShell(), title, message);

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        IPackageFragmentRoot root = getPackageFragmentRoot();
        if (root == null) {
            return status;
        }


        IJavaProject project = root.getJavaProject();


        if ((fTypeKind == ANNOTATION_TYPE || fTypeKind == ENUM_TYPE) && !status.matches(IStatus.ERROR)) {
            if (!JavaModelUtil.is50OrHigher(project)) {
                // error as createType will fail otherwise (bug 96928)
                return new StatusInfo(IStatus.ERROR, Messages.format(NewWizardMessages.NewTypeWizardPage_warning_NotJDKCompliant, BasicElementLabels.getJavaElementName(project.getElementName())));
            }
            if (fTypeKind == ENUM_TYPE) {
                try {
                    // if findType(...) == null then Enum is unavailable
                    if (findType(project, "java.lang.Enum") == null) //$NON-NLS-1$

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    protected IStatus packageChanged() {
        StatusInfo status = new StatusInfo();
        IPackageFragmentRoot root = getPackageFragmentRoot();
        fPackageDialogField.enableButton(root != null);


        IJavaProject project = root != null ? root.getJavaProject() : null;


        String packName = getPackageText();
        if (packName.length() > 0) {
            IStatus val = validatePackageName(packName, project);
            if (val.getSeverity() == IStatus.ERROR) {
                status.setError(Messages.format(NewWizardMessages.NewTypeWizardPage_error_InvalidPackageName, val.getMessage()));
                return status;
            } else if (val.getSeverity() == IStatus.WARNING) {
                status.setWarning(Messages.format(NewWizardMessages.NewTypeWizardPage_warning_DiscouragedPackageName, val.getMessage()));
                // continue
            }
        } else {
            status.setWarning(NewWizardMessages.NewTypeWizardPage_warning_DefaultPackageDiscouraged);
        }


        if (project != null) {
            assert (root != null);
            if (project.exists() && packName.length() > 0) {
                try {
                    IPath rootPath = root.getPath();
                    IPath outputPath = project.getOutputLocation();
                    if (rootPath.isPrefixOf(outputPath) && !rootPath.equals(outputPath)) {
                        // if the bin folder is inside of our root, don't allow to name a package
                        // like the bin folder
                        IPath packagePath = rootPath.append(packName.replace('.', '/'));
                        if (outputPath.isPrefixOf(packagePath)) {

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        if (typeName.indexOf('.') != -1) {
            status.setError(NewWizardMessages.NewTypeWizardPage_error_QualifiedName);
            return status;
        }


        IJavaProject project = getJavaProject();
        IStatus val = validateJavaTypeName(typeName, project);
        if (val.getSeverity() == IStatus.ERROR) {
            status.setError(Messages.format(NewWizardMessages.NewTypeWizardPage_error_InvalidTypeName, val.getMessage()));
            return status;
        } else if (val.getSeverity() == IStatus.WARNING) {

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     *         Clients can override this method if they want to offer a different dialog.
     *         </p>
     * @since 3.2
     */
    protected IType chooseSuperClass() {
        IJavaProject project = getJavaProject();
        if (project == null) {
            return null;
        }


        IJavaElement[] elements = new IJavaElement[] {

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     * </p>
     * 
     * @since 3.2
     */
    protected void chooseSuperInterfaces() {
        IJavaProject project = getJavaProject();
        if (project == null) {
            return;
        }


        SuperInterfaceSelectionDialog dialog = new SuperInterfaceSelectionDialog(getShell(), getWizard().getContainer(), this, project);

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        IFormPage page = (IFormPage) getManagedForm().getContainer();
        IWorkbenchWindow window = page.getEditorSite().getWorkbenchWindow();


        // Prepare the package lister from the Java project
        IProject project = ResourceUtil.getResource(page.getEditorInput()).getProject();
        IJavaProject javaProject = JavaCore.create(project);


        IJavaSearchScope searchScope = SearchEngine.createJavaSearchScope(new IJavaElement[] {
            javaProject
        });
        JavaSearchScopePackageLister packageLister = new JavaSearchScopePackageLister(searchScope, window);

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        toolbar.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false));


    }


    void doOpenSource(String name) {
        IJavaProject javaProj = getJavaProject();
        if (javaProj != null) {
            try {
                IType type = javaProj.findType(name);
                if (type != null)
                    JavaUI.openInEditor(type, true, true);
            } catch (PartInitException e) {
                e.printStackTrace();
            } catch (JavaModelException e) {

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        };
        IFormPage page = (IFormPage) getManagedForm().getContainer();
        IWorkbenchWindow window = page.getEditorSite().getWorkbenchWindow();


        // Prepare the package lister from the Java project
        IJavaProject javaProject = getJavaProject();
        if (javaProject == null) {
            MessageDialog.openError(getSection().getShell(), "Error", "Cannot add test cases: unable to find a Java project associated with the editor input.");
            return;
        }

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            @Override
            public void linkActivated(HyperlinkEvent ev) {
                String activatorClassName = txtActivator.getText();
                if (activatorClassName != null && activatorClassName.length() > 0) {
                    try {
                        IJavaProject javaProject = getJavaProject();
                        if (javaProject == null)
                            return;


                        IType activatorType = javaProject.findType(activatorClassName);
                        if (activatorType != null) {
                            JavaUI.openInEditor(activatorType, true, true);
                        }
                    } catch (PartInitException e) {
                        ErrorDialog.openError(getManagedForm().getForm().getShell(), "Error", null,

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