DataFolder (NetBeans Loaders API) - NetBeans API Javadoc 5.0.0

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org.openide.loaders
Class DataFolder

java.lang.Object
  org.openide.loaders.DataObject
      org.openide.loaders.MultiDataObject
          org.openide.loaders.DataFolder

All Implemented Interfaces:: DataObject.Container, HelpCtx.Provider, Node.Cookie, Serializable

public class DataFolder
extends MultiDataObject
implements Serializable, DataObject.Container

A folder containing data objects. Is actually itself a data object, whose primary (and only) file object is a file folder.

Has special support for determining the sorting of the folder, or even explicit ordering of the children.

See Also:: Serialized Form

Nested Class Summary

class DataFolder.FolderNode
          Node for a folder.

static class DataFolder.Index
          Support for index cookie for folder nodes.

static class DataFolder.SortMode
          Type-safe enumeration of sort modes for data folders.

Nested classes inherited from class org.openide.loaders.MultiDataObject

MultiDataObject.Entry

Nested classes inherited from class org.openide.loaders.DataObject

DataObject.Container, DataObject.Registry

Field Summary

static String PROP_CHILDREN
          Name of property that holds children of this node.

static String PROP_ORDER
          Name of property for order of children.

static String PROP_SORT_MODE
          Name of property which decides sorting mode.

static String SET_SORTING
          Name of set with sorting options.

Fields inherited from class org.openide.loaders.DataObject

PROP_COOKIE, PROP_FILES, PROP_HELP, PROP_MODIFIED, PROP_NAME, PROP_PRIMARY_FILE, PROP_TEMPLATE, PROP_VALID

Constructor Summary

DataFolder(FileObject fo)
          Deprecated. This method should not be used in client code. If you are searching for a DataFolder for a FileObject use findFolder(org.openide.filesystems.FileObject) factory method.

protected DataFolder(FileObject fo, DataLoader loader)
          Deprecated. Since 1.13 do not use this constructor, it is for backward compatibility only.

protected DataFolder(FileObject fo, MultiFileLoader loader)
          Create a data folder from a folder file object.

Method Summary

Enumeration children()
          Get enumeration of children of this folder.

Enumeration children(boolean rec)
          Enumerate all children of this folder.

static DataFolder create(DataFolder folder, String name)
          Helper method to find or create a folder of a given path.

Children createNodeChildren(DataFilter filter)
          Support method to obtain a children object that can be added to any Node.

protected Node createNodeDelegate()
          Create node representative for this folder.

static DataObject.Container findContainer(FileObject fo)
          Finds a DataObject.Container representing given folder.

static DataFolder findFolder(FileObject fo)
          Create a folder for a specified file object.

DataObject[] getChildren()
          Get the children of this folder.

HelpCtx getHelpCtx()
          Get help context for this object.

String getName()
          Get the name of the data folder.

DataFolder.SortMode getSortMode()
          Get the sort mode of the folder.

protected DataObject handleCopy(DataFolder f)
          Copies primary and secondary files to new folder.

protected DataObject handleCreateFromTemplate(DataFolder f, String name)
          Create a new data object from template (implemented in subclasses).

protected DataShadow handleCreateShadow(DataFolder f)
          Creates shadow for this object in specified folder (overridable in subclasses).

protected void handleDelete()
          Delete this object (implemented by subclasses).

protected FileObject handleMove(DataFolder df)
          Moves primary and secondary files to a new folder.

protected FileObject handleRename(String name)
          Rename this object (implemented in subclasses).

boolean isCopyAllowed()
          Test whether the object may be copied.

boolean isDeleteAllowed()
          Test whether the object may be deleted.

boolean isMoveAllowed()
          Test whether the object may be moved.

boolean isRenameAllowed()
          Test whether the object may be renamed.

void setOrder(DataObject[] arr)
          Set the order of the children.

void setSortMode(DataFolder.SortMode mode)
          Set the sort mode for the folder.

Methods inherited from class org.openide.loaders.MultiDataObject

addSecondaryEntry, files, findSecondaryEntry, getCookie, getCookieSet, getMultiFileLoader, getPrimaryEntry, registerEntry, removeSecondaryEntry, secondaryEntries, setCookieSet, takePrimaryFileLock

Methods inherited from class org.openide.loaders.DataObject

addPropertyChangeListener, addVetoableChangeListener, copy, createFromTemplate, createFromTemplate, createShadow, delete, dispose, find, firePropertyChange, fireVetoableChange, getCookie, getFolder, getLoader, getNodeDelegate, getPrimaryFile, getRegistry, isModified, isShadowAllowed, isTemplate, isValid, markFiles, move, removePropertyChangeListener, removeVetoableChangeListener, rename, setModified, setTemplate, setValid, toString, writeReplace

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openide.loaders.DataObject.Container

addPropertyChangeListener, removePropertyChangeListener

Field Detail

PROP_CHILDREN

public static final String PROP_CHILDREN

Name of property that holds children of this node.

See Also:: Constant Field Values

PROP_SORT_MODE

public static final String PROP_SORT_MODE

Name of property which decides sorting mode.

See Also:: Constant Field Values

PROP_ORDER

public static final String PROP_ORDER

Name of property for order of children.

See Also:: Constant Field Values

SET_SORTING

public static final String SET_SORTING

Name of set with sorting options.

See Also:: Constant Field Values

Constructor Detail

DataFolder

public DataFolder(FileObject fo)
           throws DataObjectExistsException,
                  IllegalArgumentException

Deprecated. This method should not be used in client code. If you are searching for a DataFolder for a FileObject use findFolder(org.openide.filesystems.FileObject) factory method.; Create a data folder from a folder file object.
Parameters:: fo - file folder to work on
Throws:: DataObjectExistsException - if there is one already; IllegalArgumentException - if fo is not folder

DataFolder

protected DataFolder(FileObject fo,
                     MultiFileLoader loader)
              throws DataObjectExistsException,
                     IllegalArgumentException

Create a data folder from a folder file object.
Parameters:: fo - file folder to work on; loader - data loader for this data object
Throws:: DataObjectExistsException - if there is one already; IllegalArgumentException - if fo is not folder

DataFolder

protected DataFolder(FileObject fo,
                     DataLoader loader)
              throws DataObjectExistsException,
                     IllegalArgumentException

Deprecated. Since 1.13 do not use this constructor, it is for backward compatibility only.; Create a data folder from a folder file object.
Parameters:: fo - file folder to work on; loader - data loader for this data object
Throws:: DataObjectExistsException - if there is one already; IllegalArgumentException - if fo is not folder

Method Detail

create

public static DataFolder create(DataFolder folder,
                                String name)
                         throws IOException

Helper method to find or create a folder of a given path. Tries to find such a subfolder, or creates it if it needs to.

Parameters:: folder - the folder to start in; name - a subfolder path (e.g. com/mycom/testfolder)
Returns:: a folder with the given name
Throws:: IOException - if the I/O fails

setSortMode

public final void setSortMode(DataFolder.SortMode mode)
                       throws IOException

Set the sort mode for the folder.

Parameters:: mode - an constant from DataFolder.SortMode
Throws:: IOException - if the mode cannot be set

getSortMode

public final DataFolder.SortMode getSortMode()

Get the sort mode of the folder.

Returns:: the sort mode

setOrder

public final void setOrder(DataObject[] arr)
                    throws IOException

Set the order of the children. The provided array defines the order of some children for the folder. Such children will be returned at the beginning of the array returned from getChildren(). If there are any other children, they will be appended to the array.

Parameters:: arr - array of data objects (children of this folder) to define the order; or null if any particular ordering should be cancelled
Throws:: IOException - if the order cannot be set

getName

public String getName()

Get the name of the data folder.

This implementation uses the name and extension of the primary file.

Overrides:: getName in class DataObject

Returns:: the name

getChildren

public DataObject[] getChildren()

Get the children of this folder.

Specified by:: getChildren in interface DataObject.Container

Returns:: array of children

children

public Enumeration children()

Get enumeration of children of this folder.

Returns:: enumeration of DataObjects

children

public Enumeration children(boolean rec)

Enumerate all children of this folder. If the children should be enumerated recursively, first all direct children are listed; then children of direct subfolders; and so on.

Parameters:: rec - whether to enumerate recursively
Returns:: enumeration of type DataObject

createNodeDelegate

protected Node createNodeDelegate()

Create node representative for this folder.

Overrides:: createNodeDelegate in class MultiDataObject

Returns:: the node representation
See Also:: DataNode

createNodeChildren

public Children createNodeChildren(DataFilter filter)

Support method to obtain a children object that can be added to any Node. The provided filter can be used to exclude some objects from the list.

Overriding this method is deprecated!

Parameters:: filter - filter of data objects
Returns:: children object representing content of this folder

isDeleteAllowed

public boolean isDeleteAllowed()

Description copied from class: DataObject

Test whether the object may be deleted.

Overrides:: isDeleteAllowed in class MultiDataObject

isCopyAllowed

public boolean isCopyAllowed()

Description copied from class: DataObject

Test whether the object may be copied.

Overrides:: isCopyAllowed in class MultiDataObject

isMoveAllowed

public boolean isMoveAllowed()

Description copied from class: DataObject

Test whether the object may be moved.

Overrides:: isMoveAllowed in class MultiDataObject

isRenameAllowed

public boolean isRenameAllowed()

Description copied from class: DataObject

Test whether the object may be renamed.

Overrides:: isRenameAllowed in class MultiDataObject

getHelpCtx

public HelpCtx getHelpCtx()

Description copied from class: DataObject

Get help context for this object.

Specified by:: getHelpCtx in interface HelpCtx.Provider
Overrides:: getHelpCtx in class MultiDataObject

findFolder

public static DataFolder findFolder(FileObject fo)

Create a folder for a specified file object.

Parameters:: fo - file object
Returns:: folder for the file object
Throws:: IllegalArgumentException - if the file object is not folder

findContainer

public static DataObject.Container findContainer(FileObject fo)

Finds a DataObject.Container representing given folder.

Parameters:: fo - file object (must be folder)
Returns:: the container for the file object
Throws:: IllegalArgumentException - if the file object is not folder
Since:: 1.11

handleCopy

protected DataObject handleCopy(DataFolder f)
                         throws IOException

Description copied from class: MultiDataObject

Copies primary and secondary files to new folder. May ask for user confirmation before overwriting.

Overrides:: handleCopy in class MultiDataObject

Parameters:: f - the new folder
Returns:: data object for the new primary
Throws:: IOException - if there was a problem copying

handleDelete

protected void handleDelete()
                     throws IOException

Description copied from class: DataObject

Delete this object (implemented by subclasses).

Overrides:: handleDelete in class MultiDataObject

Throws:: IOException

handleRename

protected FileObject handleRename(String name)
                           throws IOException

Description copied from class: DataObject

Rename this object (implemented in subclasses).

Overrides:: handleRename in class MultiDataObject

Throws:: IOException

handleMove

protected FileObject handleMove(DataFolder df)
                         throws IOException

Description copied from class: MultiDataObject

Moves primary and secondary files to a new folder. May ask for user confirmation before overwriting.

Overrides:: handleMove in class MultiDataObject

Parameters:: df - the new folder
Returns:: the moved primary file object
Throws:: IOException - if there was a problem moving

handleCreateFromTemplate

protected DataObject handleCreateFromTemplate(DataFolder f,
                                              String name)
                                       throws IOException

Description copied from class: DataObject

Create a new data object from template (implemented in subclasses). This method should copy the content of the template to the destination folder and assign a new name to the new object.

Overrides:: handleCreateFromTemplate in class MultiDataObject

Throws:: IOException

handleCreateShadow

protected DataShadow handleCreateShadow(DataFolder f)
                                 throws IOException

Creates shadow for this object in specified folder (overridable in subclasses).

The default implementation creates a reference data shadow and pastes it into the specified folder.

Overrides:: handleCreateShadow in class DataObject

Parameters:: f - the folder to create a shortcut in
Returns:: the shadow
Throws:: IOException

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Nested Class Summary
`class`	`DataFolder.FolderNode` Node for a folder.
`static class`	`DataFolder.Index` Support for index cookie for folder nodes.
`static class`	`DataFolder.SortMode` Type-safe enumeration of sort modes for data folders.

Field Summary
`static String`	`PROP_CHILDREN` Name of property that holds children of this node.
`static String`	`PROP_ORDER` Name of property for order of children.
`static String`	`PROP_SORT_MODE` Name of property which decides sorting mode.
`static String`	`SET_SORTING` Name of set with sorting options.

Constructor Summary
	`DataFolder(FileObject fo)` Deprecated. This method should not be used in client code. If you are searching for a `DataFolder` for a FileObject use `findFolder(org.openide.filesystems.FileObject)` factory method.
`protected`	`DataFolder(FileObject fo, DataLoader loader)` Deprecated. Since 1.13 do not use this constructor, it is for backward compatibility only.
`protected`	`DataFolder(FileObject fo, MultiFileLoader loader)` Create a data folder from a folder file object.

Method Summary
`Enumeration`	`children()` Get enumeration of children of this folder.
`Enumeration`	`children(boolean rec)` Enumerate all children of this folder.
`static DataFolder`	`create(DataFolder folder, String name)` Helper method to find or create a folder of a given path.
`Children`	`createNodeChildren(DataFilter filter)` Support method to obtain a children object that can be added to any `Node`.
`protected Node`	`createNodeDelegate()` Create node representative for this folder.
`static DataObject.Container`	`findContainer(FileObject fo)` Finds a DataObject.Container representing given folder.
`static DataFolder`	`findFolder(FileObject fo)` Create a folder for a specified file object.
`DataObject[]`	`getChildren()` Get the children of this folder.
`HelpCtx`	`getHelpCtx()` Get help context for this object.
`String`	`getName()` Get the name of the data folder.
`DataFolder.SortMode`	`getSortMode()` Get the sort mode of the folder.
`protected DataObject`	`handleCopy(DataFolder f)` Copies primary and secondary files to new folder.
`protected DataObject`	`handleCreateFromTemplate(DataFolder f, String name)` Create a new data object from template (implemented in subclasses).
`protected DataShadow`	`handleCreateShadow(DataFolder f)` Creates shadow for this object in specified folder (overridable in subclasses).
`protected void`	`handleDelete()` Delete this object (implemented by subclasses).
`protected FileObject`	`handleMove(DataFolder df)` Moves primary and secondary files to a new folder.
`protected FileObject`	`handleRename(String name)` Rename this object (implemented in subclasses).
`boolean`	`isCopyAllowed()` Test whether the object may be copied.
`boolean`	`isDeleteAllowed()` Test whether the object may be deleted.
`boolean`	`isMoveAllowed()` Test whether the object may be moved.
`boolean`	`isRenameAllowed()` Test whether the object may be renamed.
`void`	`setOrder(DataObject[] arr)` Set the order of the children.
`void`	`setSortMode(DataFolder.SortMode mode)` Set the sort mode for the folder.

DataFolder (NetBeans Loaders API) - NetBeans API Javadoc 5.0.0

org.openide.loaders Class DataFolder

PROP_CHILDREN

PROP_SORT_MODE

PROP_ORDER

SET_SORTING

DataFolder

DataFolder

DataFolder

create

setSortMode

getSortMode

setOrder

getName

getChildren

children

children

createNodeDelegate

createNodeChildren

isDeleteAllowed

isCopyAllowed

isMoveAllowed

isRenameAllowed

getHelpCtx

findFolder

findContainer

handleCopy

handleDelete

handleRename

handleMove

handleCreateFromTemplate

handleCreateShadow

org.openide.loaders
Class DataFolder