/* This file is part of the db4o object database http://www.db4o.com
Copyright (C) 2004 - 2011 Versant Corporation http://www.versant.com
db4o is free software; you can redistribute it and/or modify it under
the terms of version 3 of the GNU General Public License as published
by the Free Software Foundation.
db4o 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, see http://www.gnu.org/licenses/. */
package com.db4o.foundation;
/**
* @exclude
*/
public class KeySpec {
public interface Deferred {
Object evaluate();
}
private Object _defaultValue;
public KeySpec(byte defaultValue) {
_defaultValue = new Byte(defaultValue);
}
public KeySpec(int defaultValue) {
_defaultValue = new Integer(defaultValue);
}
public KeySpec(boolean defaultValue) {
_defaultValue = new Boolean(defaultValue);
}
public KeySpec(Object defaultValue) {
_defaultValue = defaultValue;
}
public Object defaultValue() {
if (_defaultValue instanceof Deferred) {
return ((Deferred)_defaultValue).evaluate();
}
return _defaultValue;
}
}