001/*
002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     ataillefer
016 */
017package org.nuxeo.ecm.diff.model.impl;
018
019import java.util.ArrayList;
020import java.util.HashMap;
021import java.util.List;
022import java.util.Map;
023
024import org.nuxeo.ecm.diff.model.PropertyDiff;
025import org.nuxeo.ecm.diff.model.SchemaDiff;
026
027/**
028 * Implementation of SchemaDiff using a HashMap.
029 * 
030 * @author <a href="mailto:ataillefer@nuxeo.com">Antoine Taillefer</a>
031 */
032public class SchemaDiffImpl implements SchemaDiff {
033
034    private static final long serialVersionUID = -5117078340766697371L;
035
036    /**
037     * Map holding the schema diff.
038     * <p>
039     * Keys are field names. Values represent the difference between the left doc and the right doc for the given field.
040     */
041    private Map<String, PropertyDiff> schemaDiff;
042
043    /**
044     * Instantiates a new schema diff impl.
045     */
046    public SchemaDiffImpl() {
047        schemaDiff = new HashMap<String, PropertyDiff>();
048    }
049
050    public Map<String, PropertyDiff> getSchemaDiff() {
051        return schemaDiff;
052    }
053
054    public int getFieldCount() {
055        return schemaDiff.size();
056    }
057
058    public List<String> getFieldNames() {
059        return new ArrayList<String>(schemaDiff.keySet());
060    }
061
062    public PropertyDiff getFieldDiff(String field) {
063        return schemaDiff.get(field);
064    }
065
066    public PropertyDiff putFieldDiff(String field, PropertyDiff fieldDiff) {
067        return schemaDiff.put(field, fieldDiff);
068    }
069
070}