/*
 * Copyright (C) 2004-2008  exedio GmbH (www.exedio.com)
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package com.exedio.cope;

import java.sql.Connection;

import com.exedio.dsmf.Schema;

final class PkSourceMaxImpl implements PkSourceImpl
{
	private final Type type;
	
	PkSourceMaxImpl(final Type type)
	{
		this.type = type;
	}

	private int next = PkSource.NaPK;
	private final Object lock = new Object();
	
	public void flush()
	{
		synchronized(lock)
		{
			next = PkSource.NaPK;
		}
	}

	public int next(final Connection connection)
	{
		synchronized(lock)
		{
			if(next==PkSource.NaPK)
			{
				final Table table = type.getTable();
				final Integer maxPK = table.database.maxPK(connection, table);
				next = maxPK!=null ? (maxPK.intValue()+1) : 0;
			}
			
			return next++;
		}
	}

	public void makeSchema(final Schema schema)
	{
		// empty
	}
}

/*
 * Copyright (C) 2004-2008  exedio GmbH (www.exedio.com)
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package com.exedio.cope;

import java.sql.Connection;

import com.exedio.dsmf.Schema;

final class PkSourceMaxImpl implements PkSourceImpl
{
	private final Type type;
	
	PkSourceMaxImpl(final Type type)
	{
		this.type = type;
	}

	private int next = PkSource.NaPK;
	private final Object lock = new Object();
	
	public void flush()
	{
		synchronized(lock)
		{
			next = PkSource.NaPK;
		}
	}

	public int next(final Connection connection)
	{
		synchronized(lock)
		{
			if(next==PkSource.NaPK)
			{
				final Table table = type.getTable();
				final Integer maxPK = table.database.maxPK(connection, table);
				next = maxPK!=null ? (maxPK.intValue()+1) : 0;
			}
			return next++;
		}
	}

	public void makeSchema(final Schema schema)
	{
		// empty
	}
}

format code