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Apache Commons VFS is a Virtual File System library.
There is a newer version: 2.9.0
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.commons.vfs2;

/**
 * An enumerated type that represents a file's type.
 */
public enum FileType {

    /**
     * A folder. May contain other files, and have attributes, but does not have any data content.
     */
    FOLDER("folder", true, false, true),

    /**
     * A regular file. May have data content and attributes, but cannot contain other files.
     */
    FILE("file", false, true, true),

    /**
     * A file or folder. May have data content and attributes, and can contain other files.
     */
    FILE_OR_FOLDER("fileOrFolder", true, true, true),

    /**
     * A file that does not exist. May not have data content, attributes, or contain other files.
     */
    IMAGINARY("imaginary", false, false, false);

    /** The name of the FileType */
    private final String name;

    /** true if the FileType can have children */
    private final boolean hasChildren;

    /** true if the FileType can have content */
    private final boolean hasContent;

    /** true if the FileType has attributes */
    private final boolean hasAttrs;

    private FileType(final String name, final boolean hasChildren, final boolean hasContent, final boolean hasAttrs) {
        this.name = name;
        this.hasChildren = hasChildren;
        this.hasContent = hasContent;
        this.hasAttrs = hasAttrs;
    }

    /**
     * Returns the name of this type.
     *
     * @return The name of this type.
     */
    @Override
    public String toString() {
        return name;
    }

    /**
     * Returns the name of this type.
     *
     * @return The name of the type.
     */
    public String getName() {
        return name;
    }

    /**
     * Returns true if files of this type may contain other files.
     *
     * @return true if files can contain other files.
     */
    public boolean hasChildren() {
        return hasChildren;
    }

    /**
     * Returns true if files of this type may have data content.
     *
     * @return true if files can have content.
     */
    public boolean hasContent() {
        return hasContent;
    }

    /**
     * Returns true if files of this type may have attributes.
     *
     * @return true if files can have attributes
     */
    public boolean hasAttributes() {
        return hasAttrs;
    }
}