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/* ====================================================================
 *
 * The ObjectStyle Group Software License, version 1.1
 * ObjectStyle Group - http://objectstyle.org/
 * 
 * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
 * of the software. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
 * 3. The end-user documentation included with the redistribution, if any,
 *    must include the following acknowlegement:
 *    "This product includes software developed by independent contributors
 *    and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 * 
 * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse
 *    or promote products derived from this software without prior written
 *    permission. For written permission, email
 *    "andrus at objectstyle dot org".
 * 
 * 5. Products derived from this software may not be called "ObjectStyle"
 *    or "Cayenne", nor may "ObjectStyle" or "Cayenne" appear in their
 *    names without prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 * 
 * This software consists of voluntary contributions made by many
 * individuals and hosted on ObjectStyle Group web site.  For more
 * information on the ObjectStyle Group, please see
 * .
 */

package org.objectstyle.cayenne.access.util;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.objectstyle.cayenne.access.DataNode;
import org.objectstyle.cayenne.map.ObjEntity;
import org.objectstyle.cayenne.query.Query;

/**
 * @deprecated Unused since 1.2.
 * @author Andrei Adamchik
 */
public class DataNodeCommitHelper {
    public static final int INSERT = 1;
    public static final int UPDATE = 2;
    public static final int DELETE = 3;

    protected DataNode node;
    protected List objEntitiesForInsert = new ArrayList();
    protected List objEntitiesForDelete = new ArrayList();
    protected List objEntitiesForUpdate = new ArrayList();
    protected Map flattenedInsertQueries = new HashMap();
    protected Map flattenedDeleteQueries = new HashMap();
    protected List queries = new ArrayList();

    /**
     * Finds an existing helper for DataNode, creates a new one if no matching
     * helper is found.
     */
    public static DataNodeCommitHelper getHelperForNode(
        List helpers,
        DataNode node) {

        DataNodeCommitHelper helper = null;
        Iterator it = helpers.iterator();
        while (it.hasNext()) {
            DataNodeCommitHelper itHelper = (DataNodeCommitHelper) it.next();
            if (itHelper.getNode() == node) {
                helper = itHelper;
                break;
            }
        }

        if (helper == null) {
            helper = new DataNodeCommitHelper(node);
            helpers.add(helper);
        }

        return helper;
    }

    public DataNodeCommitHelper(DataNode node) {
        this.node = node;
    }
    

    public void addToEntityList(ObjEntity ent, int listType) {
        switch (listType) {
            case 1 :
                objEntitiesForInsert.add(ent);
                break;
            case 2 :
                objEntitiesForUpdate.add(ent);
                break;
            case 3 :
                objEntitiesForDelete.add(ent);
                break;
        }
    }
    
    public void addToQueries(Query q) {
    	queries.add(q);
    }

    /**
     * Returns the node.
     */
    public DataNode getNode() {
        return node;
    }

    /**
     * Returns the queries.
     */
    public List getQueries() {
        return queries;
    }
    /**
     * Returns the objEntitiesForDelete.
     * @return List
     */
    public List getObjEntitiesForDelete() {
        return objEntitiesForDelete;
    }

    /**
     * Returns the objEntitiesForInsert.
     * @return List
     */
    public List getObjEntitiesForInsert() {
        return objEntitiesForInsert;
    }

    /**
     * Returns the objEntitiesForUpdate.
     * @return List
     */
    public List getObjEntitiesForUpdate() {
        return objEntitiesForUpdate;
    }
    
    public Map getFlattenedDeleteQueries() {
        return flattenedDeleteQueries;
    }

    public Map getFlattenedInsertQueries() {
        return flattenedInsertQueries;
    }
}