/*
* This code is distributed under The GNU Lesser General Public License (LGPLv3)
* Please visit GNU site for LGPLv3 http://www.gnu.org/copyleft/lesser.html
*
* Copyright Denis Pavlov 2009
* Web: http://www.genericdtoassembler.org
* SVN: https://svn.code.sf.net/p/geda-genericdto/code/trunk/
* SVN (mirror): http://geda-genericdto.googlecode.com/svn/trunk/
*/
package com.inspiresoftware.lib.dto.geda.examples.usecases.generics;
import com.inspiresoftware.lib.dto.geda.adapter.BeanFactory;
import com.inspiresoftware.lib.dto.geda.assembler.Assembler;
import com.inspiresoftware.lib.dto.geda.assembler.DTOAssembler;
import com.inspiresoftware.lib.dto.geda.exception.GeDAException;
import java.util.*;
import static org.junit.Assert.*;
/**
* User: denispavlov
* Date: 13-04-22
* Time: 7:07 PM
*/
public class RunWithGenerics {
/**
* Example showing how to use GeDA with generics. The answer is that there is no difference
* but you do need to at least distinguish between fields, collections and maps.
*/
public void genericMapping() throws GeDAException {
final DtoGenericClass<String, Collection<DtoGenericItemClass<String>>, Map<String, DtoGenericItemClass<String>>> dto = new DtoClass();
final EntityClass entity = new EntityClass();
final Assembler assembler = DTOAssembler.newAssembler(dto.getClass(), entity.getClass());
final DtoGenericItemClass<String> item = new DtoGenericItemClass<String>();
item.setMyProp("item");
dto.setMyProp("prop");
final List<DtoGenericItemClass<String>> coll = new ArrayList<DtoGenericItemClass<String>>();
coll.add(item);
dto.setMyColl(coll);
final Map<String, DtoGenericItemClass<String>> map = new HashMap<String, DtoGenericItemClass<String>>();
map.put("m1", item);
dto.setMyMap(map);
assembler.assembleEntity(dto, entity, null, new BeanFactory() {
public Class getClazz(final String entityBeanKey) {
return null;
}
public Object get(final String entityBeanKey) {
return new EntityGenericItemClass<String>();
}
});
assertEquals("prop", entity.getMyProp());
assertNotNull(entity.getMyColl());
assertNotSame(dto.getMyColl(), entity.getMyColl());
assertEquals(1, entity.getMyColl().size());
assertEquals("item", entity.getMyColl().iterator().next().getMyProp());
assertNotNull(entity.getMyMap());
assertNotSame(dto.getMyMap(), entity.getMyMap());
assertEquals(1, entity.getMyMap().size());
assertEquals("item", entity.getMyMap().iterator().next().getMyProp());
entity.setMyProp("e1");
entity.getMyColl().iterator().next().setMyProp("ci1");
entity.getMyMap().iterator().next().setMyProp("mi1");
assembler.assembleDto(dto, entity, null, new BeanFactory() {
public Class getClazz(final String entityBeanKey) {
return null;
}
public Object get(final String entityBeanKey) {
return new DtoGenericItemClass<String>();
}
});
assertEquals("e1", dto.getMyProp());
assertNotNull(dto.getMyColl());
assertNotSame(dto.getMyColl(), entity.getMyColl());
assertEquals(1, dto.getMyColl().size());
assertEquals("ci1", dto.getMyColl().iterator().next().getMyProp());
assertNotNull(entity.getMyMap());
assertNotSame(dto.getMyMap(), entity.getMyMap());
assertEquals(1, dto.getMyMap().size());
assertTrue(dto.getMyMap().containsKey("mi1"));
assertEquals("mi1", dto.getMyMap().get("mi1").getMyProp());
}
public static void main(String[] args) {
new RunWithGenerics().genericMapping();
}
}