org.openide.cookies
Interface InstanceCookie.Of

All Superinterfaces:

InstanceCookie, Node.Cookie

All Known Implementing Classes:

InstanceSupport, InstanceSupport.Instance, InstanceDataObject

Enclosing class:

InstanceCookie

public static interface InstanceCookie.Of

extends InstanceCookie

Enhanced cookie that can answer queries about the type of the instance it creates. It does not bring any additional value, but should improve performance, because it is not necessary to load the actual class of the object into memory.

Since:

1.4

Inner classes inherited from class org.openide.cookies.InstanceCookie

InstanceCookie.Of, InstanceCookie.Origin

Method Summary

boolean

instanceOf(Class type) Query to found out if the object created by this cookie is instance of given type.

Methods inherited from interface org.openide.cookies.InstanceCookie

instanceClass, instanceCreate, instanceName

Method Detail

instanceOf

public boolean instanceOf(Class type)

Query to found out if the object created by this cookie is instance of given type. The same code as:

    Class actualClass = instanceClass ();
    result = type.isAsignableFrom (actualClass);
 

But this can prevent the class actualClass to be loaded into the Java VM.

Parameters:

type - the class type we want to check

Returns:

true if this cookie can produce object of given type