DefaultAttributes (NetBeans File Systems API) - NetBeans API Javadoc 5.0.0

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org.openide.filesystems
Class DefaultAttributes

java.lang.Object
  org.openide.filesystems.DefaultAttributes

All Implemented Interfaces:: AbstractFileSystem.Attr, AbstractFileSystem.List, Serializable

public class DefaultAttributes
extends Object
implements AbstractFileSystem.Attr, AbstractFileSystem.List

Implementation of AbstractFileSystem.Attr using a special file in each folder for holding attributes. It needs to hide the file from the rest of system, so it also implements AbstractFileSystem.List to exclude the file from the children list (it can then serve to filter a plain list implementation). Description of format of special file ilustrates best DTD file that is showed in next lines:

See Also:: Serialized Form

Field Summary

static String ATTR_EXT
          Deprecated. does not handle XML attributes

static String ATTR_NAME
          Deprecated. does not handle XML attributes

static String ATTR_NAME_EXT
          Deprecated. does not handle XML attributes

Constructor Summary

DefaultAttributes(AbstractFileSystem.Info info, AbstractFileSystem.Change change, AbstractFileSystem.List list)
          Constructor.

protected DefaultAttributes(AbstractFileSystem.Info info, AbstractFileSystem.Change change, AbstractFileSystem.List list, String fileName)
          Constructor.

Method Summary

Enumeration attributes(String name)
          Get all file attribute names for the file.

String[] children(String f)
          Get the children list, filtering out the special attributes file.

void deleteAttributes(String name)
          Called when a file is deleted, to also delete its attributes.

Object readAttribute(String name, String attrName)
          Get the file attribute with the specified name.

void renameAttributes(String oldName, String newName)
          Called when a file is renamed, to appropriately update its attributes.

void writeAttribute(String name, String attrName, Object value)
          Set the file attribute with the specified name.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ATTR_NAME

public static final String ATTR_NAME

Deprecated. does not handle XML attributes

File name of special file in each folder where attributes are saved.

See Also:: Constant Field Values

ATTR_EXT

public static final String ATTR_EXT

Deprecated. does not handle XML attributes

Extension of special file in each folder where attributes are saved.

See Also:: Constant Field Values

ATTR_NAME_EXT

public static final String ATTR_NAME_EXT

Deprecated. does not handle XML attributes

Name with extension of special file in each folder where attributes are saved.

See Also:: Constant Field Values

Constructor Detail

DefaultAttributes

public DefaultAttributes(AbstractFileSystem.Info info,
                         AbstractFileSystem.Change change,
                         AbstractFileSystem.List list)

Constructor.
Parameters:: info - file object information to use; change - file change hooks to use; list - list to filter (can be null, but then this object cannot work as a list)

DefaultAttributes

protected DefaultAttributes(AbstractFileSystem.Info info,
                            AbstractFileSystem.Change change,
                            AbstractFileSystem.List list,
                            String fileName)

Constructor.
Parameters:: info - file object information to use; change - file change hooks to use; list - list to filter (can be null, but then this object cannot work as a list); fileName -
Since:: 4.35

Method Detail

children

public String[] children(String f)

Get the children list, filtering out the special attributes file. You must have provided a non-null AbstractFileSystem.List in the constructor for this to work. If you did not, the rest of the class will work fine, but this method should not be called and this object should not be used as a List implementation.

Specified by:: children in interface AbstractFileSystem.List

Parameters:: f - the folder, by name; e.g. top/next/afterthat
Returns:: a list of children of the folder, as file.ext (no path)