uml-to-code

Generate java code from xml uml description

Based on the "Mapping UML diagram to XML" work by Jitender Singh for JNU that you can find on docs/utx_doc.pdf.
The purpose of this project is take the xml rapresentation of uml diagram and generate the relative java code that implement the CRUD access for various database pattern access.

The mapping

To map a Uml we need to descripbe the output in a settings section and map the entity in a entities section.
The setting section is composed of:

• defaultPackage : package to use in the java code jenerated
• outputType : string that select the output type to generate for (DAO, HYBERNATE, BRUTE_FORCE)
• outputPath : path where write the output code
• useSurrogatesId : boolean value indacate to use or not surrugate ids

The entities block have to collect the entity description composed with:

• _ entyty_ :
  • name attribute : the calss name in camel case (<entity name="Teatro">)
  • attribute childrens : the class attributes with :
    • name attribute : the name of the attribute
    • sqlType attribute : sql type of the attribute
    • null attribute : boolean value indicate the associated column allow null value or not
    • primaryKey attribute : boolean value indicate the associated column is primary key for the table

Pattern DAO

With this example diagram:

it's enought write the xml rappresentation:

<?xml version="1.0" encoding="utf-8"?>
<uml>
	<settings>
		<defaultPackage>it.nfantoni.dao.test</defaultPackage>
		<outputType>DAO</outputType>
		<outputPath>target/dao</outputPath>
		<useSurrogatesId>false</useSurrogatesId>
	</settings>
	<entities>
		<entity name="Teatro">
			<attribute name="Nome" sqlType="VARCHAR(255)" null="false" primaryKey="true" />
			<attribute name="Indirizzo" sqlType="VARCHAR(255)" />
			<attribute name="Capienza" sqlType="INT" />
            <association multiplicity="1" className="Spettacolo" />
		</entity>
		<entity name="Spettacolo">
			<attribute name="CodiceSpettacolo" sqlType="VARCHAR(255)" null="false" primaryKey="true" />
			<attribute name="NomeArtista" sqlType="VARCHAR(255)" />
			<attribute name="Data" sqlType="DATE" />
			<attribute name="Genere" sqlType="VARCHAR(255)" />
            <association multiplicity="*" className="Teatro" />
		</entity>
	</entities>
</uml>

and run the program to generate all java classes for crud operation based on Dao Pattern.