Example usage for org.eclipse.jdt.core IJavaElementDelta getAnnotationDeltas

Introduction

In this page you can find the example usage for org.eclipse.jdt.core IJavaElementDelta getAnnotationDeltas.

Prototype

public IJavaElementDelta[] getAnnotationDeltas();

Source Link

Document

Returns deltas for affected annotations (added, removed, or changed).

Usage

From source file:org.jboss.tools.ws.jaxrs.core.internal.metamodel.builder.JavaElementChangedListener.java

License:Open Source License

private void logDelta(final IJavaElementDelta delta, final int eventType) {
    final IJavaElement element = delta.getElement();
    // skip as the project is closed
    final int deltaKind = retrieveDeltaKind(delta);
    final Flags flags = new Flags(delta.getFlags());
    final CompilationUnit compilationUnitAST = null;
    final JavaElementChangedEvent event = new JavaElementChangedEvent(element, deltaKind, eventType,
            compilationUnitAST, flags);//from   w ww .  j  a v  a  2 s. c om
    Logger.trace("Event {}", event);
    // carry on with children elements.
    for (IJavaElementDelta affectedChild : delta.getAffectedChildren()) {
        logDelta(affectedChild, eventType);
    }
    for (IJavaElementDelta annotation : delta.getAnnotationDeltas()) {
        logDelta(annotation, eventType);
    }
}

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From source file:org.jboss.tools.ws.jaxrs.core.internal.metamodel.builder.JavaElementDeltaScanner.java

License:Open Source License

/**
 * Recursively analyse the given Java Element Delta.
 * /*w  w  w.j  a  va  2 s.c  o  m*/
 * @param delta
 * @param eventType
 * @throws CoreException
 * @see https://bugs.eclipse.org/bugs/show_bug.cgi?id=100267
 */
private List<JavaElementChangedEvent> scanDelta(final IJavaElementDelta delta, final int eventType)
        throws CoreException {
    final List<JavaElementChangedEvent> events = new ArrayList<JavaElementChangedEvent>();
    final IJavaElement element = delta.getElement();
    // skip as the project is closed
    if (element == null) {
        Logger.debug("** skipping this build because the delta element is null **");
        return Collections.emptyList();
    } else if (element.getElementType() == IJavaElement.JAVA_PROJECT
            && !element.getJavaProject().getProject().isOpen() && delta.getFlags() != F_OPENED) {
        Logger.debug("** skipping this build because the java project is closed. **");
        return Collections.emptyList();
    } else if ((element.getElementType() == IJavaElement.PACKAGE_FRAGMENT_ROOT)) {
        final IPackageFragmentRoot packageFragmentRoot = (IPackageFragmentRoot) element;
        if (!packageFragmentRoot.isExternal()
                && (packageFragmentRoot.getResource() == null || !packageFragmentRoot.getResource().exists())) {
            return Collections.emptyList();
        }
    } else if (element.getResource() == null || !element.getResource().exists()) {
        return Collections.emptyList();
    }
    final int elementKind = element.getElementType();
    final int deltaKind = retrieveDeltaKind(delta);
    final Flags flags = new Flags(delta.getFlags());
    if (elementKind == JAVA_PROJECT) {
        final JavaElementChangedEvent event = new JavaElementChangedEvent(element, delta.getKind(), eventType,
                null, new Flags(delta.getFlags()));
        if (javaElementChangedEventFilter.apply(event)) {
            events.add(event);
            // skip anything below
            return events;
        }
    }
    final CompilationUnit compilationUnitAST = getCompilationUnitAST(delta);
    if (elementKind == COMPILATION_UNIT) {
        final ICompilationUnit compilationUnit = (ICompilationUnit) element;
        // compilationUnitAST is null when the given compilation unit'w
        // working copy is being commited (ie, Java Editor is being closed
        // for the given compilation unit, etc.)
        if (compilationUnit.exists() // see https://issues.jboss.org/browse/JBIDE-12760: compilationUnit may not exist
                && compilationUnit.isWorkingCopy() && compilationUnitAST != null) {
            // assuming possible changes in the method signatures (return type,
            // param types and param annotations). Other changes in methods
            // (renaming, adding/removing params) result in add+remove
            // events on the given method itself.
            if (requiresDiffsComputation(flags)) {
                for (IType type : compilationUnit.getAllTypes()) {
                    for (IMethod javaMethod : type.getMethods()) {
                        final JavaElementChangedEvent event = new JavaElementChangedEvent(javaMethod, CHANGED,
                                eventType, compilationUnitAST, new Flags(F_SIGNATURE));
                        if (javaElementChangedEventFilter.apply(event)) {
                            events.add(event);
                        }
                    }
                }
            }
        }
    }
    // element is part of the compilation unit
    else if (compilationUnitAST != null) {
        final JavaElementChangedEvent event = new JavaElementChangedEvent(element, deltaKind, eventType,
                compilationUnitAST, flags);
        if (javaElementChangedEventFilter.apply(event)) {
            events.add(event);
        }
    }
    // continue with children elements, both on annotations and other java
    // elements.
    for (IJavaElementDelta affectedChild : delta.getAffectedChildren()) {
        events.addAll(scanDelta(affectedChild, eventType));
    }
    for (IJavaElementDelta annotation : delta.getAnnotationDeltas()) {
        events.addAll(scanDelta(annotation, eventType));
    }
    return events;
}

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