Source Code Cross Referenced for IDatabaseObject.java in  » J2EE » hgcommons » biz » hammurapi » sql » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » hgcommons » biz.hammurapi.sql 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * hgcommons 7
003:         * Hammurapi Group Common Library 
004:         * Copyright (C) 2003  Hammurapi Group
005:         *
006:         * This program is free software; you can redistribute it and/or
007:         * modify it under the terms of the GNU Lesser General Public
008:         * License as published by the Free Software Foundation; either
009:         * version 2 of the License, or (at your option) any later version.
010:         *
011:         * This program is distributed in the hope that it will be useful,
012:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         * Lesser General Public License for more details.
015:         *
016:         * You should have received a copy of the GNU Lesser General Public
017:         * License along with this library; if not, write to the Free Software
018:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
019:         *
020:         * URL: http://www.hammurapi.biz/hammurapi-biz/ef/xmenu/hammurapi-group/products/products/hgcommons/index.html
021:         * e-Mail: support@hammurapi.biz
022:         */
023:        package biz.hammurapi.sql;
024:
025:        import java.sql.SQLException;
026:        import java.util.Properties;
027:
028:        import org.w3c.dom.Element;
029:
030:        import biz.hammurapi.config.ConfigurationException;
031:
032:        /**
033:         * Interface of DatabaseObject. This interface is used for creating dynamic proxies backed
034:         * up with database obects.
035:         * @author Pavel Vlasov
036:         * @revision $Revision$
037:         */
038:        public interface IDatabaseObject {
039:
040:            /**
041:             * Updates row in a table by primary key
042:             * @param processor SQLProcessor
043:             * @param tableName Target table
044:             * @return Number of updates
045:             * @throws SQLException
046:             */
047:            public abstract int update(SQLProcessor processor, String tableName)
048:                    throws SQLException;
049:
050:            /**
051:             * Deletes row in a table by primary key.
052:             * @param processor SQLProcessor
053:             * @param tableName Target table
054:             * @return Number of updates
055:             * @throws SQLException
056:             */
057:            public abstract int delete(SQLProcessor processor, String tableName)
058:                    throws SQLException;
059:
060:            public abstract int insert(SQLProcessor processor, String tableName)
061:                    throws SQLException;
062:
063:            /**
064:             * Loads columns from XML element
065:             * @param holder
066:             * @throws ConfigurationException If loading fails
067:             */
068:            public abstract void fromDom(Element holder)
069:                    throws ConfigurationException;
070:
071:            public abstract void fromDom(Element holder, Properties nameMap)
072:                    throws ConfigurationException;
073:
074:            /**
075:             * Serializes to DOM.
076:             * @param holder Holder element
077:             * @param nameMap Name map
078:             * @param originals Output original values if any.
079:             */
080:            public abstract void toDom(Element holder, Properties nameMap,
081:                    boolean originals);
082:
083:            /**
084:             * Sets current values as original values in primary key columns.
085:             */
086:            public abstract void setOriginal();
087:
088:            /**
089:             * @return true if object was modified since last database operation.
090:             */
091:            public abstract boolean isModified();
092:
093:            /**
094:             * isDeleted flag is cleared when primary key columns are modified
095:             * @return true if delete() method was executed.
096:             */
097:            public abstract boolean isDeleted();
098:
099:            /**
100:             * Sets all columns to default values and clears 
101:             * modified and deleted flags.
102:             *
103:             */
104:            public abstract void clear();
105:
106:            /**
107:             * Copies values from source object to this object
108:             * @param source
109:             */
110:            public abstract void copy(DatabaseObject source);
111:
112:            public abstract void setColumnAttribute(String columnName,
113:                    Object key, Object value);
114:
115:            public abstract Object getColumnAttribute(String columnName,
116:                    Object key);
117:
118:            public abstract Object removeColumnAttribute(String columnName,
119:                    Object key);
120:
121:        }
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