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High-Availability JDBC

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/*
 * HA-JDBC: High-Availability JDBC
 * Copyright (C) 2013  Paul Ferraro
 *
 * This program 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 3 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see .
 */
package net.sf.hajdbc.sql;

import java.util.SortedMap;

import net.sf.hajdbc.Database;
import net.sf.hajdbc.invocation.Invoker;

/**
 * 
 * @author Paul Ferraro
 */
public class ProxyInvocationResultFactory, P, R, E extends Exception> implements InvocationResultFactory
{
	private final ProxyFactoryFactory factory;
	private final P parentProxy;
	private final ProxyFactory parent;
	private final Invoker invoker;

	public ProxyInvocationResultFactory(ProxyFactoryFactory factory, P parentProxy, ProxyFactory parent, Invoker invoker)
	{
		this.factory = factory;
		this.parentProxy = parentProxy;
		this.parent = parent;
		this.invoker = invoker;
	}
	
	@Override
	public boolean differs(R primaryResult, R backupResult)
	{
		return ((primaryResult != null) && (backupResult == null)) || ((primaryResult == null) && (backupResult != null));
	}

	@Override
	public R createResult(SortedMap results)
	{
		return this.factory.createProxyFactory(this.parentProxy, this.parent, this.invoker, results).createProxy();
	}
}