Java Code Examples for org.eclipse.jdt.core.IField#getJavaProject()

/**
 * Compute the textual representation of a 'static' 'final' field's constant initializer value.
 *
 * @param activePart the part that triggered the computation, or <code>null</code>
 * @param selection the selection that references the field, or <code>null</code>
 * @param resolvedField the filed whose constant value will be computed
 * @param monitor the progress monitor
 *
 * @return the textual representation of the constant, or <code>null</code> if the
 *   field is not a constant field, the initializer value could not be computed, or
 *   the progress monitor was cancelled
 * @since 3.4
 */
private String computeFieldConstant(IWorkbenchPart activePart, ISelection selection, IField resolvedField, IProgressMonitor monitor) {

	if (!JavadocHover.isStaticFinal(resolvedField))
		return null;

	Object constantValue;
	IJavaProject preferenceProject;

	if (selection instanceof ITextSelection && activePart instanceof JavaEditor) {
		IEditorPart editor= (IEditorPart) activePart;
		ITypeRoot activeType= JavaUI.getEditorInputTypeRoot(editor.getEditorInput());
		preferenceProject= activeType.getJavaProject();
		constantValue= getConstantValueFromActiveEditor(activeType, resolvedField, (ITextSelection) selection, monitor);
		if (constantValue == null) // fall back - e.g. when selection is inside Javadoc of the element
			constantValue= computeFieldConstantFromTypeAST(resolvedField, monitor);
	} else {
		constantValue= computeFieldConstantFromTypeAST(resolvedField, monitor);
		preferenceProject= resolvedField.getJavaProject();
	}

	if (constantValue != null)
		return JavadocHover.getFormattedAssignmentOperator(preferenceProject) + formatCompilerConstantValue(constantValue);

	return null;
}
 

@Override
protected RenameJavaElementDescriptor createRefactoringDescriptor() {
	final IField field= getField();
	String project= null;
	IJavaProject javaProject= field.getJavaProject();
	if (javaProject != null) {
		project= javaProject.getElementName();
	}
	int flags= JavaRefactoringDescriptor.JAR_MIGRATION | JavaRefactoringDescriptor.JAR_REFACTORING | RefactoringDescriptor.STRUCTURAL_CHANGE;
	final IType declaring= field.getDeclaringType();
	try {
		if (!Flags.isPrivate(declaring.getFlags())) {
			flags|= RefactoringDescriptor.MULTI_CHANGE;
		}
		if (declaring.isAnonymous() || declaring.isLocal()) {
			flags|= JavaRefactoringDescriptor.JAR_SOURCE_ATTACHMENT;
		}
	} catch (JavaModelException exception) {
		JavaLanguageServerPlugin.log(exception);
	}
	final String description= Messages.format(RefactoringCoreMessages.RenameEnumConstProcessor_descriptor_description_short, BasicElementLabels.getJavaElementName(fField.getElementName()));
	final String header= Messages.format(RefactoringCoreMessages.RenameEnumConstProcessor_descriptor_description, new String[] { BasicElementLabels.getJavaElementName(field.getElementName()), JavaElementLabels.getElementLabel(field.getParent(), JavaElementLabels.ALL_FULLY_QUALIFIED), BasicElementLabels.getJavaElementName(getNewElementName())});
	final String comment= new JDTRefactoringDescriptorComment(project, this, header).asString();
	final RenameJavaElementDescriptor descriptor= RefactoringSignatureDescriptorFactory.createRenameJavaElementDescriptor(IJavaRefactorings.RENAME_ENUM_CONSTANT);
	descriptor.setProject(project);
	descriptor.setDescription(description);
	descriptor.setComment(comment);
	descriptor.setFlags(flags);
	descriptor.setJavaElement(field);
	descriptor.setNewName(getNewElementName());
	descriptor.setUpdateReferences(fUpdateReferences);
	descriptor.setUpdateTextualOccurrences(fUpdateTextualMatches);
	return descriptor;
}
 

@Override
protected RenameJavaElementDescriptor createRefactoringDescriptor() {
	final IField field= getField();
	String project= null;
	IJavaProject javaProject= field.getJavaProject();
	if (javaProject != null)
		project= javaProject.getElementName();
	int flags= JavaRefactoringDescriptor.JAR_MIGRATION | JavaRefactoringDescriptor.JAR_REFACTORING | RefactoringDescriptor.STRUCTURAL_CHANGE;
	final IType declaring= field.getDeclaringType();
	try {
		if (!Flags.isPrivate(declaring.getFlags()))
			flags|= RefactoringDescriptor.MULTI_CHANGE;
		if (declaring.isAnonymous() || declaring.isLocal())
			flags|= JavaRefactoringDescriptor.JAR_SOURCE_ATTACHMENT;
	} catch (JavaModelException exception) {
		JavaPlugin.log(exception);
	}
	final String description= Messages.format(RefactoringCoreMessages.RenameEnumConstProcessor_descriptor_description_short, BasicElementLabels.getJavaElementName(fField.getElementName()));
	final String header= Messages.format(RefactoringCoreMessages.RenameEnumConstProcessor_descriptor_description, new String[] { BasicElementLabels.getJavaElementName(field.getElementName()), JavaElementLabels.getElementLabel(field.getParent(), JavaElementLabels.ALL_FULLY_QUALIFIED), BasicElementLabels.getJavaElementName(getNewElementName())});
	final String comment= new JDTRefactoringDescriptorComment(project, this, header).asString();
	final RenameJavaElementDescriptor descriptor= RefactoringSignatureDescriptorFactory.createRenameJavaElementDescriptor(IJavaRefactorings.RENAME_ENUM_CONSTANT);
	descriptor.setProject(project);
	descriptor.setDescription(description);
	descriptor.setComment(comment);
	descriptor.setFlags(flags);
	descriptor.setJavaElement(field);
	descriptor.setNewName(getNewElementName());
	descriptor.setUpdateReferences(fUpdateReferences);
	descriptor.setUpdateTextualOccurrences(fUpdateTextualMatches);
	return descriptor;
}
 

/**
 * Create a stub for a getter of the given field using getter/setter templates. The resulting code
 * has to be formatted and indented.
 * @param field The field to create a getter for
 * @param setterName The chosen name for the setter
 * @param addComments If <code>true</code>, comments will be added.
 * @param flags The flags signaling visibility, if static, synchronized or final
 * @return Returns the generated stub.
 * @throws CoreException when stub creation failed
 */
public static String getSetterStub(IField field, String setterName, boolean addComments, int flags) throws CoreException {

	String fieldName= field.getElementName();
	IType parentType= field.getDeclaringType();

	String returnSig= field.getTypeSignature();
	String typeName= Signature.toString(returnSig);

	IJavaProject project= field.getJavaProject();

	String accessorName= StubUtility.getBaseName(field);
	String argname= StubUtility.suggestArgumentName(project, accessorName, EMPTY);

	boolean isStatic= Flags.isStatic(flags);
	boolean isSync= Flags.isSynchronized(flags);
	boolean isFinal= Flags.isFinal(flags);

	String lineDelim= "\n"; // Use default line delimiter, as generated stub has to be formatted anyway //$NON-NLS-1$
	StringBuffer buf= new StringBuffer();
	if (addComments) {
		String comment= CodeGeneration.getSetterComment(field.getCompilationUnit(), parentType.getTypeQualifiedName('.'), setterName, field.getElementName(), typeName, argname, accessorName, lineDelim);
		if (comment != null) {
			buf.append(comment);
			buf.append(lineDelim);
		}
	}
	buf.append(JdtFlags.getVisibilityString(flags));
	buf.append(' ');
	if (isStatic)
		buf.append("static "); //$NON-NLS-1$
	if (isSync)
		buf.append("synchronized "); //$NON-NLS-1$
	if (isFinal)
		buf.append("final "); //$NON-NLS-1$

	buf.append("void "); //$NON-NLS-1$
	buf.append(setterName);
	buf.append('(');
	buf.append(typeName);
	buf.append(' ');
	buf.append(argname);
	buf.append(") {"); //$NON-NLS-1$
	buf.append(lineDelim);

	boolean useThis= StubUtility.useThisForFieldAccess(project);
	if (argname.equals(fieldName) || (useThis && !isStatic)) {
		if (isStatic)
			fieldName= parentType.getElementName() + '.' + fieldName;
		else
			fieldName= "this." + fieldName; //$NON-NLS-1$
	}
	String body= CodeGeneration.getSetterMethodBodyContent(field.getCompilationUnit(), parentType.getTypeQualifiedName('.'), setterName, fieldName, argname, lineDelim);
	if (body != null) {
		buf.append(body);
	}
	buf.append("}"); //$NON-NLS-1$
	buf.append(lineDelim);
	return buf.toString();
}