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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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*
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package java.beans.beancontext;
This interface is implemented by a JavaBean that does
not directly have a BeanContext(Child) associated with
it (via implementing that interface or a subinterface thereof),
but has a public BeanContext(Child) delegated from it.
For example, a subclass of java.awt.Container may have a BeanContext
associated with it that all Component children of that Container shall
be contained within.
An Object may not implement this interface and the
BeanContextChild interface
(or any subinterfaces thereof) they are mutually exclusive.
Callers of this interface shall examine the return type in order to
obtain a particular subinterface of BeanContextChild as follows:
BeanContextChild bcc = o.getBeanContextProxy();
if (bcc instanceof BeanContext) {
// ...
}
or
BeanContextChild bcc = o.getBeanContextProxy();
BeanContext bc = null;
try {
bc = (BeanContext)bcc;
} catch (ClassCastException cce) {
// cast failed, bcc is not an instanceof BeanContext
}
The return value is a constant for the lifetime of the implementing
instance
Author: Laurence P. G. Cable See Also: Since: 1.2
/**
* <p>
* This interface is implemented by a JavaBean that does
* not directly have a BeanContext(Child) associated with
* it (via implementing that interface or a subinterface thereof),
* but has a public BeanContext(Child) delegated from it.
* For example, a subclass of java.awt.Container may have a BeanContext
* associated with it that all Component children of that Container shall
* be contained within.
* </p>
* <p>
* An Object may not implement this interface and the
* BeanContextChild interface
* (or any subinterfaces thereof) they are mutually exclusive.
* </p>
* <p>
* Callers of this interface shall examine the return type in order to
* obtain a particular subinterface of BeanContextChild as follows:
* <code>
* BeanContextChild bcc = o.getBeanContextProxy();
*
* if (bcc instanceof BeanContext) {
* // ...
* }
* </code>
* or
* <code>
* BeanContextChild bcc = o.getBeanContextProxy();
* BeanContext bc = null;
*
* try {
* bc = (BeanContext)bcc;
* } catch (ClassCastException cce) {
* // cast failed, bcc is not an instanceof BeanContext
* }
* </code>
* </p>
* <p>
* The return value is a constant for the lifetime of the implementing
* instance
* </p>
* @author Laurence P. G. Cable
* @since 1.2
*
* @see java.beans.beancontext.BeanContextChild
* @see java.beans.beancontext.BeanContextChildSupport
*/
public interface BeanContextProxy {
Gets the BeanContextChild (or subinterface)
associated with this object.
Returns: the BeanContextChild (or subinterface)
associated with this object
/**
* Gets the <code>BeanContextChild</code> (or subinterface)
* associated with this object.
* @return the <code>BeanContextChild</code> (or subinterface)
* associated with this object
*/
BeanContextChild getBeanContextProxy();
}