/**
 * AnalyzerBeans
 * Copyright (C) 2014 Neopost - Customer Information Management
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * 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 distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.eobjects.analyzer.storage;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * StorageProvider that actually doesn't store data on disk, but only in memory.
 * This implementation is prone to out of memory errors, but is on the other
 * hand very quick for small jobs.
 * 
 * 
 */
public final class InMemoryStorageProvider implements StorageProvider {

	private final int _storedRowsThreshold;
	
	public InMemoryStorageProvider() {
		this(1000);
	}

	public InMemoryStorageProvider(int storedRowsThreshold) {
		_storedRowsThreshold = storedRowsThreshold;
	}

	@Override
	public <E> List<E> createList(Class<E> valueType) throws IllegalStateException {
		return new ArrayList<E>();
	}

	@Override
	public <K, V> Map<K, V> createMap(Class<K> keyType, Class<V> valueType) throws IllegalStateException {
		return new HashMap<K, V>();
	}

	@Override
	public <E> Set<E> createSet(Class<E> valueType) throws IllegalStateException {
		return new HashSet<E>();
	}

	@Override
	public RowAnnotationFactory createRowAnnotationFactory() {
		return new InMemoryRowAnnotationFactory(_storedRowsThreshold);
	}
}