Module org.refcodes.filesystem

Package org.refcodes.filesystem

Interface FileHandle

All Superinterfaces:

org.refcodes.mixin.CreatedDateAccessor, FileSizeAccessor, org.refcodes.mixin.ModifiedDateAccessor, org.refcodes.mixin.NameAccessor, org.refcodes.mixin.PathAccessor

All Known Subinterfaces:

FileHandle.MutableFileHandle

All Known Implementing Classes:

FileHandleImpl, FileHandleImpl.MutableFileHandleImpl

public interface FileHandle
extends org.refcodes.mixin.PathAccessor, org.refcodes.mixin.NameAccessor, FileSizeAccessor, org.refcodes.mixin.CreatedDateAccessor, org.refcodes.mixin.ModifiedDateAccessor

A file (handle) (descriptor) describes a file in a file system.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	FileHandle.MutableFileHandle	The mutable FileHandle allows the modification of (fiddling around with) attributes. ------------------------------------------------------------------------- ATTENTION: Usually fiddling around with attributes is not necessary, as the FileSystem itself provides the sufficient functionality to work with files.

Nested classes/interfaces inherited from interface org.refcodes.mixin.CreatedDateAccessor

org.refcodes.mixin.CreatedDateAccessor.CreatedDateMutator, org.refcodes.mixin.CreatedDateAccessor.CreatedDateProperty

Nested classes/interfaces inherited from interface org.refcodes.filesystem.FileSizeAccessor

FileSizeAccessor.FileSizeBuilder<B extends FileSizeAccessor.FileSizeBuilder<B>>, FileSizeAccessor.FileSizeMutator, FileSizeAccessor.FileSizeProperty

Nested classes/interfaces inherited from interface org.refcodes.mixin.ModifiedDateAccessor

org.refcodes.mixin.ModifiedDateAccessor.ModifiedDateMutator, org.refcodes.mixin.ModifiedDateAccessor.ModifiedDateProperty

Nested classes/interfaces inherited from interface org.refcodes.mixin.NameAccessor

org.refcodes.mixin.NameAccessor.NameBuilder<B extends org.refcodes.mixin.NameAccessor.NameBuilder<B>>, org.refcodes.mixin.NameAccessor.NameMutator, org.refcodes.mixin.NameAccessor.NameProperty

Nested classes/interfaces inherited from interface org.refcodes.mixin.PathAccessor

org.refcodes.mixin.PathAccessor.PathBuilder<B extends org.refcodes.mixin.PathAccessor.PathBuilder<?>>, org.refcodes.mixin.PathAccessor.PathMutator, org.refcodes.mixin.PathAccessor.PathProperty

Method Summary

Modifier and Type	Method	Description
Date	getCreatedDate()	The date when the file was created.
long	getFileSize()	The size of the content of the file.
Date	getModifiedDate()	The date when the file was modified.
String	getName()	The name is the part of the key without the path.
String	getPath()	The path is the part of the key without the name.
String	toKey()	The key is the fully qualified name to identify the file.
FileHandle.MutableFileHandle	toMutableFileHandle()	Converts the give FileHandle to a FileHandle.MutableFileHandle.

Method Details

getPath

String getPath()

The path is the part of the key without the name. The path separator is not implementation specific and should be retrieved from the file system's FileSystem.PATH_DELIMITER attribute.

Specified by:

getPath in interface org.refcodes.mixin.PathAccessor

Returns:

The path of the file's key without the name.

getName

String getName()

The name is the part of the key without the path. The path separator is not implementation specific and should be retrieved from the file system's FileSystem.PATH_DELIMITER attribute.

Specified by:

getName in interface org.refcodes.mixin.NameAccessor

Returns:

The name of the file's key without the path.

toKey

String toKey()

The key is the fully qualified name to identify the file. The key usually is physically (directory path and filename) or virtually composed of the path and the name.

Returns:

The fully qualified key of the file.

getFileSize

long getFileSize()

The size of the content of the file.

Specified by:

getFileSize in interface FileSizeAccessor

Returns:

The content size of the file.

getCreatedDate

Date getCreatedDate()

The date when the file was created.

Specified by:

getCreatedDate in interface org.refcodes.mixin.CreatedDateAccessor

Returns:

The creation date.

getModifiedDate

Date getModifiedDate()

The date when the file was modified.

Specified by:

getModifiedDate in interface org.refcodes.mixin.ModifiedDateAccessor

Returns:

The modification date.

toMutableFileHandle

FileHandle.MutableFileHandle toMutableFileHandle()

Converts the give FileHandle to a FileHandle.MutableFileHandle. The mutable FileHandle allows the modification of (fiddling around with) attributes. ------------------------------------------------------------------------- ATTENTION: Usually fiddling around with attributes is not necessary, as the FileSystem itself provides the sufficient functionality to work with files. In some cases though this might be necessary: This method is being provided to allow modification of file attributes while making sure that the FileHandle itself creates a copy so that any additional attributes provided by extensions of this interface of whom the developer does not know (yet) are preserved. So extensions of the FileHandle know how to create a FileHandle.MutableFileHandle without information loss, the business logic does not require to take care of any yet unknown extensions. ------------------------------------------------------------------------- CAUTION: Working with modified FileHandles on the FileSystem can aCause unexpected (severe) behavior (data loss), so we assume that you know what you do when using the FileHandle.MutableFileHandle! ------------------------------------------------------------------------- Use FileHandle.MutableFileHandle.toFileHandle() to get back to a FileHandle to avoid hassle with collections, the Object.hashCode() and the Object.equals(Object) operations.

Returns:

the mutable file handle