/*
* org.openmicroscopy.shoola.util.concur.tasks.PlainAssembler
*
*------------------------------------------------------------------------------
* Copyright (C) 2006 University of Dundee. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.util.concur.tasks;
//Java imports
//Third-party libraries
//Application-internal dependencies
/**
* Collects the result of an {@link Invocation}.
* That is, the value returned by the {@link Invocation#call() call} method.
* Note that the {@link #add(Object) add} method is meant to be invoked only
* once to pass in the afore mentioned return value. Every subsequent
* invocation will override the previously set value. In other terms, the
* {@link #add(Object) add} and {@link #assemble() assemble} methods are to
* be considered, respectively, a setter and a getter.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author <br>Andrea Falconi
* <a href="mailto:a.falconi@dundee.ac.uk">
* a.falconi@dundee.ac.uk</a>
* @version 2.2
* <small>
* (<b>Internal version:</b> $Revision$ $Date$)
* </small>
* @since OME2.2
*/
public class PlainAssembler
implements ResultAssembler
{
/** The sole result. */
private Object result;
/**
* Creates a new instance.
*/
public PlainAssembler()
{
result = null;
}
/**
* Implemented as specified by interface.
* Sets the result.
* @see ResultAssembler#add(Object)
*/
public void add(Object result)
{
this.result = result;
}
/**
* Implemented as specified by interface.
* Returns the sole result.
* @return See above.
* @see ResultAssembler#assemble()
*/
public Object assemble()
{
return result;
}
}