/* 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.config;
import com.db4o.internal.*;
/**
* a simple Alias for a single Class or Type, using equals on
* the names in the resolve method.
* <br><br>See {@link Alias} for concrete examples.
*/
public class TypeAlias implements Alias {
private final String _storedType;
private final String _runtimeType;
/**
* pass the stored name as the first
* parameter and the desired runtime name as the second parameter.
*/
public TypeAlias(String storedType, String runtimeType) {
if (null == storedType || null == runtimeType) throw new IllegalArgumentException();
_storedType = storedType;
_runtimeType = runtimeType;
}
public TypeAlias(Class storedClass, Class runtimeClass){
this(ReflectPlatform.fullyQualifiedName(storedClass), ReflectPlatform.fullyQualifiedName(runtimeClass));
}
/**
* returns the stored type name if the alias was written for the passed runtime type name
*/
public String resolveRuntimeName(String runtimeTypeName) {
return _runtimeType.equals(runtimeTypeName)
? _storedType
: null;
}
/**
* returns the runtime type name if the alias was written for the passed stored type name
*/
public String resolveStoredName(String storedTypeName) {
return _storedType.equals(storedTypeName)
? _runtimeType
: null;
}
}