/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.query.sql.lang;
/**
* <p>This abstract class represents a predicate criteria, which involves some
* statement involving expressions and can be evaluated in the context of
* a single row of data to be either true or false.</p>
*
* <p>Predicate criteria can be composed into more sophisticated criteria
* using "OR" and "AND" logical operators.</P>
*/
public abstract class PredicateCriteria extends Criteria {
public interface Negatable {
void negate();
}
/**
* Constructs a default instance of this class.
*/
public PredicateCriteria() {
}
/**
* Deep copy of object
* @return Deep copy of object
*/
public abstract Object clone();
} // END CLASS