001    package org.apache.ojb.broker.query;
002    
003    /* Copyright 2002-2005 The Apache Software Foundation
004     *
005     * Licensed under the Apache License, Version 2.0 (the "License");
006     * you may not use this file except in compliance with the License.
007     * You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    
018    import java.util.Collection;
019    
020    /**
021     * SelectionCriteria for 'in (a,b,c..)'
022     * 
023     * @author <a href="mailto:jbraeuchi@gmx.ch">Jakob Braeuchi</a>
024     * @version $Id: InCriteria.java,v 1.1 2007-08-24 22:17:36 ewestfal Exp $
025     */
026    public class InCriteria extends ValueCriteria
027    {
028            InCriteria(Object anAttribute, Object aValue, String aClause, String anAlias)
029            {
030                    super(anAttribute, aValue, aClause, anAlias);
031            }
032     
033            InCriteria(Object anAttribute, Object aValue, String aClause, UserAlias anAlias)
034            {
035                    super(anAttribute, aValue, aClause, anAlias);
036            }
037     
038            /**
039             * @see org.apache.ojb.broker.query.SelectionCriteria#isBindable()
040             * BRJ: empty Collection is bindable
041             */
042            protected boolean isBindable()
043            {
044                    if (getValue() instanceof Collection)
045                    {
046                            Collection coll = (Collection)getValue();
047                            return coll.isEmpty();
048                    }       
049                    else
050                    {
051                            return true;
052                    }       
053            }
054    
055    }
056