Re: [eclipselink-users] DynamicClass Name containing a dot

[James Sutherland <jamesssss@xxxxxxxxx>]

The issue is that the alias defaults to the simple class name.

If you use the full packaged name it will get the correct class.

ReadAllQuery query2 = new DynamicHelper(session).newReadAllQuery("p2.type"); 

or,

ReadAllQuery query2 = new DynamicHelper(session).newReadAllQuery(
                               
type2Builder.getType().getDescriptor().getJavaClass().getName()); 

or just,

ReadAllQuery query2 = new
ReadAllQuery(type2Builder.getType().getDescriptor().getJavaClass());

You should set the alias on one (or both) or your descriptors to be
different, as having two descriptors with the same alias is a bad idea.

type2Builder.getType().getDescriptor().setAlias("p2.type");



Rohit Banga-2 wrote:
> 
> Hi All
> 
> When we create a DynamicClass using 
> DynamicClassLoader.createDynamicClass(className), then how is the class 
> name expected to be interpreted if it contains a dot character.
> Lets say if the className be "p.c".
> Is "p" treated as the package and "c" as the class within the package?
> 
> The attached program throws the following exception:
> 
> Exception [EclipseLink-51000] (Eclipse Persistence Services - 
> 2.3.0.v20110324-r9156):
> org.eclipse.persistence.exceptions.DynamicException
> Exception Description: Invalid DynamicEntity[DynamicEntityType(type) - 
> RelationalDescriptor(p1.type --> [DatabaseTable(addrinfo)])] property 
> name: addrline2
>      at 
> org.eclipse.persistence.exceptions.DynamicException.invalidPropertyName(DynamicException.java:66)
>      at 
> org.eclipse.persistence.internal.dynamic.DynamicEntityImpl.get(DynamicEntityImpl.java:145)
>      at jpatest.UniqueTypeName.main(UniqueTypeName.java:79)
> 
> Ideally I would expect p1.type and p2.type to be treated as separated 
> classes. Is the above behavior expected or is it a bug in Eclipselink?
> 
> -- 
> Thanks and Regards
> Rohit Banga
> Member Technical Staff
> Oracle Server Technologies
> 
> import java.util.List;
> import java.util.Vector;
> 
> import org.eclipse.persistence.dynamic.DynamicClassLoader;
> import org.eclipse.persistence.dynamic.DynamicEntity;
> import org.eclipse.persistence.dynamic.DynamicHelper;
> import org.eclipse.persistence.dynamic.DynamicTypeBuilder;
> import org.eclipse.persistence.internal.sessions.DatabaseSessionImpl;
> import org.eclipse.persistence.jpa.dynamic.JPADynamicTypeBuilder;
> import org.eclipse.persistence.queries.ReadAllQuery;
> import org.eclipse.persistence.sessions.DatabaseLogin;
> import org.eclipse.persistence.sessions.DatabaseRecord;
> import org.eclipse.persistence.sessions.DatabaseSession;
> 
> public class UniqueTypeName
> {
> 	public static void main(String[] args)
> 	{
> 		DatabaseLogin login = new DatabaseLogin();
> 		login.setUserName("*****");
> 		login.setPassword("*****");
> 		login.setDriverURLHeader("jdbc:oracle:thin:@");
> 		login.setDriverClassName("oracle.jdbc.OracleDriver");
> 		login.setDatabaseURL("***************");
> 		DatabaseSession session = new DatabaseSessionImpl(login);
> 
> 		session.login();
> 
> 		DynamicHelper helper = new DynamicHelper(session);
> 		DynamicClassLoader dcl = helper.getDynamicClassLoader();
> 
> 		Class<?> type1 = dcl.createDynamicClass("p1.type");
> 		Class<?> type2 = dcl.createDynamicClass("p2.type");
> 
> 		DynamicTypeBuilder type1Builder = new JPADynamicTypeBuilder(type1, null,
> "addrinfo");
> 
> 		DynamicTypeBuilder type2Builder = new JPADynamicTypeBuilder(type2, null,
> "addrinfo");
> 
> 		type1Builder.setPrimaryKeyFields("addrid");
> 		type1Builder.addDirectMapping("addrid", String.class, "addrid");
> 		type1Builder.addDirectMapping("addrline1", String.class, "addr1");
> 
> 		type2Builder.setPrimaryKeyFields("addrid");
> 		type2Builder.addDirectMapping("addrid", String.class, "addrid");
> 		type2Builder.addDirectMapping("addrline1", String.class, "addr1");
> 		type2Builder.addDirectMapping("addrline2", String.class, "addr2");
> 
> 		helper.addTypes(false, true, type2Builder.getType(),
> type1Builder.getType());
> 
> 		ReadAllQuery query = new DynamicHelper(session).newReadAllQuery(
> 				type1Builder.getType().getDescriptor().getAlias());
> 		
> 		query.prepareCall(session, new DatabaseRecord());
> 		System.out.println("query: " + query.getSQLString());
> 
> 		List<DynamicEntity> emps = (List<DynamicEntity>)
> session.executeQuery(query);
> 
> 		for (DynamicEntity entity : emps)
> 		{
> 			System.out.println(entity.get("addrid"));
> 			System.out.println(entity.get("addrline1"));
> 			System.out.println();
> 		}
> 
> 		ReadAllQuery query1 = new DynamicHelper(session).newReadAllQuery(
> 				type2Builder.getType().getDescriptor().getAlias());
> 
> 		query1.prepareCall(session, new DatabaseRecord());
> 		System.out.println("query: " + query1.getSQLString());
> 
> 		emps = (List<DynamicEntity>) session.executeQuery(query1);
> 		for (DynamicEntity entity : emps)
> 		{
> 			System.out.println(entity.get("addrid"));
> 			System.out.println(entity.get("addrline1"));
> 			System.out.println(entity.get("addrline2"));
> 			System.out.println();
> 		}
> 
> 	}
> }
> 
> 


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