Class ExtensionUtils

java.lang.Object

ca.phon.extensions.ExtensionUtils

public class ExtensionUtils
extends Object

Utility methods for working with extensions.

Constructor Summary

Constructors

Constructor	Description
ExtensionUtils()

Method Summary

Modifier and Type	Method	Description
static <T> T	getExtension(Object obj, Class<T> ext)	Get the specified extension if it exists
static boolean	hasExtension(Object obj, Class<?> ext)	Check if the given object has the given extension.
static boolean	isExtendable(Object obj)	Checks if the given object implements IExtendable
static <T> T	putExtension(Object obj, Class<T> ext, T impl)	Put the specified extention in the given object.

Methods inherited from class java.lang.Object

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

Constructor Details

ExtensionUtils

public ExtensionUtils()

Method Details

isExtendable

public static boolean isExtendable(Object obj)

Checks if the given object implements IExtendable

Returns:

true if the object implements IExtendable, false otherwise

hasExtension

public static boolean hasExtension(Object obj,
 Class<?> ext)

Check if the given object has the given extension.

Parameters:

obj -

ext -

Returns:

true if the extension exists, false otherwise

getExtension

public static <T> T getExtension(Object obj,
 Class<T> ext)

Get the specified extension if it exists

Parameters:

obj -

ext -

Returns:

the specified extension or null if the extension is not available or the object is not extendable

putExtension

public static <T> T putExtension(Object obj,
 Class<T> ext,
 T impl)

Put the specified extention in the given object.

Parameters:

obj -

ext -

extObj -

Returns:

the previous value of the ext or null if not found