org.jitsi.impl.neomedia.control

Class AbstractControls

java.lang.Object

org.jitsi.impl.neomedia.control.AbstractControls

All Implemented Interfaces:

javax.media.Controls

Direct Known Subclasses:

AbstractPullBufferStream, AbstractPushBufferStream, ControlsAdapter

public abstract class AbstractControls
extends Object
implements javax.media.Controls

Provides an abstract implementation of Controls which facilitates implementers by requiring them to only implement Controls.getControls().

Author:

Lyubomir Marinov

Constructor Summary

Constructors

Constructor and Description
AbstractControls()

Method Summary

Modifier and Type	Method and Description
static Object	getControl(javax.media.Controls controlsImpl, String controlType) Gets the control of a specific Controls implementation of a specific type if such a control is made available through Controls.getControls(); otherwise, returns null.
Object	getControl(String controlType) Implements Controls.getControl(String).
static <T> T	queryInterface(javax.media.Controls controlsImpl, Class<T> controlType) Returns an instance of a specific Class which is either a control of a specific Controls implementation or the Controls implementation itself if it is an instance of the specified Class.
static Object	queryInterface(javax.media.Controls controlsImpl, String controlType) Returns an instance of a specific Class which is either a control of a specific Controls implementation or the Controls implementation itself if it is an instance of the specified Class.

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.media.Controls

getControls

Constructor Detail

AbstractControls

public AbstractControls()

Method Detail

getControl

public Object getControl(String controlType)

Implements Controls.getControl(String). Invokes Controls.getControls() and then looks for a control of the specified type in the returned array of controls.

Specified by:

getControl in interface javax.media.Controls

Parameters:

controlType - a String value naming the type of the control of this instance to be retrieved

Returns:

an Object which represents the control of this instance with the specified type

getControl

public static Object getControl(javax.media.Controls controlsImpl,
                                String controlType)

Gets the control of a specific Controls implementation of a specific type if such a control is made available through Controls.getControls(); otherwise, returns null.

Parameters:

controlsImpl - the implementation of Controls which is to be queried for its list of controls so that the control of the specified type can be looked for

controlType - a String value which names the type of the control to be retrieved

Returns:

an Object which represents the control of controlsImpl of the specified controlType if such a control is made available through Controls#getControls(); otherwise, null

queryInterface

public static <T> T queryInterface(javax.media.Controls controlsImpl,
                                   Class<T> controlType)

Returns an instance of a specific Class which is either a control of a specific Controls implementation or the Controls implementation itself if it is an instance of the specified Class. The method is similar to getControl(Controls, String) in querying the specified Controls implementation about a control of the specified Class but is different in looking at the type hierarchy of the Controls implementation for the specified Class.

Parameters:

controlsImpl - the Controls implementation to query

controlType - the runtime type of the instance to be returned

Returns:

an instance of the specified controlType if such an instance can be found among the controls of the specified controlsImpl or controlsImpl is an instance of the specified controlType; otherwise, null

queryInterface

public static Object queryInterface(javax.media.Controls controlsImpl,
                                    String controlType)

Returns an instance of a specific Class which is either a control of a specific Controls implementation or the Controls implementation itself if it is an instance of the specified Class. The method is similar to getControl(Controls, String) in querying the specified Controls implementation about a control of the specified Class but is different in looking at the type hierarchy of the Controls implementation for the specified Class.

Parameters:

controlsImpl - the Controls implementation to query

controlType - the runtime type of the instance to be returned

Returns:

an instance of the specified controlType if such an instance can be found among the controls of the specified controlsImpl or controlsImpl is an instance of the specified controlType; otherwise, null