PrefixStore.java

/*
 *  Copyright 2012 Axel Winkler, Daniel Dunér
 * 
 *  This file is part of Daxplore Presenter.
 *
 *  Daxplore Presenter 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.
 *
 *  Daxplore Presenter 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 Daxplore Presenter.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.daxplore.presenter.server.storage;

import java.util.LinkedList;
import java.util.List;

import javax.jdo.PersistenceManager;
import javax.jdo.Query;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.PrimaryKey;

@PersistenceCapable
public class PrefixStore {
	@PrimaryKey
	private String prefix;

	public PrefixStore(String prefix) {
		this.prefix = prefix;
	}

	public String getPrefix() {
		return prefix;
	}
	
	public static LinkedList<String> getPrefixes(PersistenceManager pm) {
		LinkedList<String> prefixes = new LinkedList<>();
		Query q = pm.newQuery(PrefixStore.class);

		try {
			List<PrefixStore> results = (List<PrefixStore>) q.execute();
			for (PrefixStore prefixStore : results) {
				prefixes.add(prefixStore.getPrefix());
			}
		} finally {
			q.closeAll();
		}
		return prefixes;
	}
}