Atributos file java

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This view is supported on all platforms. It provides the support to check if a file is a hidden file, a system file, an archive file, and a read-only file. It lets we manage owner, group, and [related access] permissions. UserDefinedFileAttributeView manages a set of user-defined attributes for a file. The name of an attribute is a String. The value of an attribute could be of any data type.

Load Comments. What's New. Most popular in Java. Most visited in Java Programs. We use cookies to ensure you have the best browsing experience on our website. Start Your Coding Journey Now! Login Register. This service looks up a name or group name as a string and returns a UserPrincipal object representing that string. You can obtain the user principal look-up service for the default file system by using the FileSystem. The following code snippet shows how to set the file owner by using the setOwner method:.

There is no special-purpose method in the Files class for setting a group owner. If the file attributes supported by your file system implementation aren't sufficient for your needs, you can use the UserDefinedAttributeView to create and track your own file attributes.

Most implementations impose restrictions on the size of the value, for example, ext3 limits the size to 4 kilobytes. The Xdd example shows how to get, set, and delete a user-defined attribute. You can use the FileStore class to learn information about a file store, such as how much space is available. The getFileStore Path method fetches the file store for the specified file. The following code snippet prints the space usage for the file store where a particular file resides:.

The DiskUsage example uses this API to print disk space information for all the stores in the default file system. This example uses the getFileStores method in the FileSystem class to fetch all the file stores for the file system. All rights reserved. Hide TOC. Methods Comment size Path Returns the size of the specified file in bytes. Returns true if the specified Path locates a file that is a regular file.