src/main/site/content/docs/3.0/new-system.html

---
#  Licensed to the Apache Software Foundation (ASF) under one
#  or more contributor license agreements.  See the NOTICE file
#  distributed with this work for additional information
#  regarding copyright ownership.  The ASF licenses this file
#  to you under the Apache License, Version 2.0 (the
#  "License"); you may not use this file except in compliance
#  with the License.  You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing,
#  software distributed under the License is distributed on an
#  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
#  KIND, either express or implied.  See the License for the
#  specific language governing permissions and limitations
#  under the License.

title: New System
url: /docs/3.0/new-system.html
layout: docs_legacy
---

	
<H3><A name="NewSystem-NewSystem"></A>New System</H3>

<P>For the tasks that do not use neither an existing Java layer, nor an existing database schema, Cayenne mapping project can serve as a starting point for both. User would start a new Cayenne project, create a DataMap with DbEntities corresponding to the desired schema, and then create a set of ObjEntities on top of that. After this is done, both Java and database layer can be generated from the mapping. </P>

<P>See the following topics explaining individual tasks involved:</P>

<UL>
	<LI><A href="create-new-project.html" title="Create New Project">Create New Project</A></LI>
	<LI><A href="generate-database-schema.html" title="Generate Database Schema">Generate Database Schema</A></LI>
	<LI><A href="generate-java-classes.html" title="Generate Java Classes">Generate Java Classes</A></LI>
</UL>