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Class CommandMap

java.lang.Object  |  +--javax.activation.CommandMap

Direct Known Subclasses:: MailcapCommandMap

public abstract classCommandMap
extends java.lang.Object

The CommandMap class provides an interface to a registry of command objects available in the system. Developers are expected to either use the CommandMap implementation included with this package (MailcapCommandMap) or develop their own. Note that some of the methods in this class are abstract.


`CommandMap()`


	`createDataContentHandler(java.lang.String mimeType)` Locate a DataContentHandler that corresponds to the MIME type.
	`getAllCommands(java.lang.String mimeType)` Get all the available commands for this type.
	`getCommand(java.lang.String mimeType, java.lang.String cmdName)` Get the default command corresponding to the MIME type.
	`getDefaultCommandMap()` Get the default CommandMap.
	`getPreferredCommands(java.lang.String mimeType)` Get the preferred command list from a MIME Type.
	`setDefaultCommandMap(CommandMap commandMap)` Set the default CommandMap.

Methods inherited from class java.lang.Object

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

CommandMap

publicCommandMap()

getDefaultCommandMap

public staticCommandMapgetDefaultCommandMap()

Get the default CommandMap.

In cases where a CommandMap instance has been previously set to some value (viasetDefaultCommandMap) return the CommandMap.
In cases where no CommandMap has been set, the CommandMap creates an instance ofMailcapCommandMap and set that to the default, returning its value.

Returns:: the CommandMap

setDefaultCommandMap

public static voidsetDefaultCommandMap(CommandMap commandMap)

Set the default CommandMap. Reset the CommandMap to the default by calling this method withnull.

Parameters:: commandMap - The new default CommandMap.
Throws:: java.lang.SecurityException - if the caller doesn't have permissionto change the default

getPreferredCommands

public abstractCommandInfo[]getPreferredCommands(java.lang.String mimeType)

Get the preferred command list from a MIME Type. The actual semantics are determined by the implementation of the CommandMap.

Parameters:: mimeType - the MIME type
Returns:: the CommandInfo classes that represent the command Beans.

getAllCommands

public abstractCommandInfo[]getAllCommands(java.lang.String mimeType)

Get all the available commands for this type. This method should return all the possible commands for this MIME type.

Parameters:: mimeType - the MIME type
Returns:: the CommandInfo objects representing all the commands.

getCommand

public abstractCommandInfogetCommand(java.lang.String mimeType,                                       java.lang.String cmdName)

Get the default command corresponding to the MIME type.

Parameters:: mimeType - the MIME type; cmdName - the command name
Returns:: the CommandInfo corresponding to the command.

createDataContentHandler

public abstractDataContentHandlercreateDataContentHandler(java.lang.String mimeType)

Locate a DataContentHandler that corresponds to the MIME type. The mechanism and semantics for determining this are determined by the implementation of the particular CommandMap.

Parameters:: mimeType - the MIME type
Returns:: the DataContentHandler for the MIME type

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