| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.psi; |
| |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Represents a file system directory and allows to access its contents. |
| */ |
| public interface PsiDirectory extends PsiFileSystemItem { |
| /** |
| * The empty array of PSI directories which can be reused to avoid unnecessary allocations. |
| */ |
| PsiDirectory[] EMPTY_ARRAY = new PsiDirectory[0]; |
| |
| /** |
| * Returns the virtual file represented by the PSI directory. |
| * |
| * @return the virtual file instance. |
| */ |
| @Override |
| @NotNull |
| VirtualFile getVirtualFile(); |
| |
| @Override |
| @NotNull |
| String getName(); |
| |
| @Override |
| @NotNull |
| PsiElement setName(@NotNull String name) throws IncorrectOperationException; |
| |
| /** |
| * Returns the parent directory of the directory. |
| * |
| * @return the parent directory, or null if the directory has no parent. |
| */ |
| @Nullable |
| PsiDirectory getParentDirectory(); |
| |
| @Override |
| @Nullable |
| PsiDirectory getParent(); |
| |
| /** |
| * Returns the list of subdirectories of this directory. |
| * |
| * @return the array of subdirectories. |
| */ |
| @NotNull |
| PsiDirectory[] getSubdirectories(); |
| |
| /** |
| * Returns the list of files in the directory. |
| * |
| * @return the array of files. |
| */ |
| @NotNull |
| PsiFile[] getFiles(); |
| |
| /** |
| * Finds the subdirectory of this directory with the specified name. |
| * |
| * @param name the name of the subdirectory to find. |
| * @return the subdirectory instance, or null if no subdirectory with such a name is found. |
| */ |
| @Nullable |
| PsiDirectory findSubdirectory(@NotNull String name); |
| |
| /** |
| * Finds a file with the specified name in this directory. |
| * |
| * @param name the name of the file to find. |
| * @return the file instance, or null if no file with such a name is found. |
| */ |
| @Nullable |
| PsiFile findFile(@NotNull @NonNls String name); |
| |
| /** |
| * Creates a subdirectory with the specified name in the directory. |
| * |
| * @param name the name of the subdirectory to create. |
| * @return the created directory instance. |
| * @throws IncorrectOperationException if the operation failed for some reason. |
| */ |
| @NotNull PsiDirectory createSubdirectory(@NotNull String name) throws IncorrectOperationException; |
| |
| /** |
| * Checks if it's possible to create a subdirectory with the specified name in the directory, |
| * and throws an exception if the creation is not possible. Does not actually modify |
| * anything. |
| * |
| * @param name the name of the subdirectory to check creation possibility. |
| * @throws IncorrectOperationException if the creation is not possible. |
| */ |
| void checkCreateSubdirectory(@NotNull String name) throws IncorrectOperationException; |
| |
| /** |
| * Creates a file with the specified name in the directory. |
| * |
| * @param name the name of the file to create. |
| * @return the created file instance. |
| * @throws IncorrectOperationException if the operation failed for some reason. |
| */ |
| @NotNull PsiFile createFile(@NotNull @NonNls String name) throws IncorrectOperationException; |
| |
| @NotNull PsiFile copyFileFrom(@NotNull String newName, @NotNull PsiFile originalFile) throws IncorrectOperationException; |
| |
| /** |
| * Checks if it's possible to create a file with the specified name in the directory, |
| * and throws an exception if the creation is not possible. Does not actually modify |
| * anything. |
| * |
| * @param name the name of the file to check creation possibility. |
| * @throws IncorrectOperationException if the creation is not possible. |
| */ |
| void checkCreateFile(@NotNull String name) throws IncorrectOperationException; |
| } |