/**
 * This file is part of xss-jpa.
 *
 * Copyright 2012 Sebastian Schmelzer
 * http://xss.nu/
 *
 * 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 library. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package nu.xss.jpa.query.filter;

import java.util.HashSet;
import java.util.Set;

import javax.persistence.criteria.Predicate;

/**
 * The Class AbstractFilter.
 * 
 * @param <E>
 *            the element type
 */
public abstract class AbstractFilter<E> implements Filter {

	/** The predicates. */
	private Set<Predicate> predicates = new HashSet<Predicate>();

	/**
	 * Adds the predicate.
	 * 
	 * @param predicate
	 *            the predicate
	 */
	protected void addPredicate(final Predicate predicate) {
		predicates.add(predicate);
	}

	/* (non-Javadoc)
	 * @see nu.xss.jpa.query.filter.Filter#getPredicates()
	 */
	@Override
	public Set<Predicate> getPredicates() {
		return predicates;
	}

}