/* *****************************************************************************
* JFire - it's hot - Free ERP System - http://jfire.org *
* Copyright (C) 2004-2005 NightLabs - http://NightLabs.org *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2.1 of the License, or (at your option) any later version. *
* *
* This library 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, *
* Boston, MA 02110-1301 USA *
* *
* Or get it online : *
* http://opensource.org/licenses/lgpl-license.php *
* *
* *
******************************************************************************/
package org.nightlabs.jfire.trade.ui.accounting;
import java.util.Collection;
import java.util.Iterator;
import org.eclipse.swt.dnd.Transfer;
import org.nightlabs.base.ui.dnd.LocalObjectTransfer;
import org.nightlabs.jfire.accounting.Account;
/**
* @author Alexander Bieber <alex[AT]nightlabs[DOT]de>
*
*/
public class AccountLocalTransfer
extends LocalObjectTransfer
{
public AccountLocalTransfer() {
super();
}
/**
* @see org.nightlabs.base.ui.dnd.LocalObjectTransfer#validate(java.lang.Object)
*/
@SuppressWarnings("unchecked")
@Override
protected boolean validate(Object object) {
if (object instanceof Account)
return true;
else if (object instanceof Collection) {
for (Iterator iter = ((Collection)object).iterator(); iter.hasNext();) {
if (! (iter.next() instanceof Account))
return false;
}
return true;
}
return false;
}
private static AccountLocalTransfer sharedAccountLocalTransfer;
public static AccountLocalTransfer sharedAccountLocalTransfer() {
if (sharedAccountLocalTransfer == null)
sharedAccountLocalTransfer = new AccountLocalTransfer();
return sharedAccountLocalTransfer;
}
public static final Transfer[] ACCOUNT_LOCAL_TRANSFERS = new Transfer[] { sharedAccountLocalTransfer()};
}