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Posted to users@openjpa.apache.org by "andrea.martano@litemailer.com" <an...@litemailer.com> on 2008/01/24 14:09:14 UTC
Can't get PCEnahncer to work
Hi All,
It's a couple of days I'm hitting my head against a wall!
why do I get this message when invoking PCEnhancer both from
command line and as an ant task?
Exception in thread "main"
java.lang.IllegalArgumentException:
java.lang.ClassNotFoundException: model.Visitor
at serp.util.Strings.toClass(Strings.java:164)
at serp.util.Strings.toClass(Strings.java:108)
at
org.apache.openjpa.lib.meta.ClassArgParser.parseTypes(ClassArgParser.java:164)
at
org.apache.openjpa.enhance.PCEnhancer.run(PCEnhancer.java:4328)
at
org.apache.openjpa.enhance.PCEnhancer.run(PCEnhancer.java:4291)
at
org.apache.openjpa.enhance.PCEnhancer.main(PCEnhancer.java:4263)
..... ......
>From what I can see the class model.Visitor is found, so I
can't understand what SERP complains for.
I build some other web apps using Springframework 2.5, the
Tomcat load time weaver and they work. Now I wanted to use
enhanced classes but I'm still.
Anyone can help me?
Thanks,
AM
Here follows my command line
export
CLASSPATH=./openjpa-1.0.1.jar:./lib/geronimo-jpa_3.0_spec-1.0.jar:./lib/geronimo-jta_1.1_spec-1.1.jar:./lib/geronimo-jms_1.1_spec-
1.0.1.jar:./lib/serp-1.13.1.jar:./lib/commons-collections-3.2.jar:./lib/commons-lang-2.1.jar:./lib/commons-logging-1.0.4.jar:./lib/common
s-pool-1.3.jar:$HOME/NetBeansProjects/TestApp2Model/src
java org.apache.openjpa.enhance.PCEnhancer \
-p
/home/java/NetBeansProjects/TestApp2Model/src/META-INF/persistence.xml
\
-d /home/java/NetBeansProjects/TestApp2Model/src/enhanced \
/home/java/NetBeansProjects/TestApp2Model/src/**/*.java
........................................................................
this is my ant target used inNetBeans 6.0
<target name="-pre-compile">
<property name="jpa-home"
value="${user.home}/NetBeansProjects/java-libraries/apache-openjpa-1.0.1"/>
<path id="jpa.classpath">
<pathelement path="${jpa-home}/openjpa-1.0.1.jar"/>
<fileset dir="${jpa-home}/lib">
<include name="*.jar"/>
</fileset>
</path>
<taskdef name="openjpac"
classname="org.apache.openjpa.ant.PCEnhancerTask">
<classpath refid="jpa.classpath"/>
</taskdef>
<openjpac directory="${basedir}/src/enhanced">
<config
propertiesFile="${basedir}/src/META-INF/persistence.xml"/>
<fileset dir="${basedir}/src">
<include name="model/*.java"/>
</fileset>
</openjpac>
</target>
..................................................
this is the class source
package model;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
/**
*
* @author Andrea Martano
*/
@Entity
@Table(name = "visitors")
@NamedQueries({
@NamedQuery(name = "findAllVisitors", query = "SELECT v FROM
Visitor v ORDER BY v.id")
})
public class Visitor implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@Column(name = "firstname")
private String firstname;
@Column(name = "lastname")
private String lastname;
@Column(name = "email")
private String email;
public Visitor() {}
public Visitor(String firstname, String lastname, String
email) {
setFirstname(firstname);
setLastname(lastname);
setEmail(email);
}
public void setId(Long id) {
this.id = id;
}
public Long getId() {
return id;
}
@Override
public int hashCode() {
int hash = 0;
hash += (getId() != null ? getId().hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the
case the id fields are not set
if (!(object instanceof Visitor)) {
return false;
}
Visitor other = (Visitor) object;
if ((this.getId() == null && other.getId() != null)
|| (this.getId() != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
@Override
public String toString() {
return "model.Visitor[id=" + getId() + "]";
}
public String getFirstname() {
return firstname;
}
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public String getLastname() {
return lastname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
Re: Help selecting version column
Posted by Jeff Melching <jm...@us.ibm.com>.
I have to do this for several entities, some of which have to have things
eagerly loaded. I am trying to save a little bandwidth and db processing.
I have an extremely complicated data model to deal with.
From:
"Patrick Linskey" <pl...@gmail.com>
To:
users@openjpa.apache.org
Date:
01/24/2008 10:49 AM
Subject:
Re: Help selecting version column
Hi,
Why are you trying to do this? Definitely it looks like this is a bug
in OpenJPA, but generally-speaking it's very cheap to pull back the
rest of the rows in a given record (i.e., select a frmo AnEntity a
where a.id = ?1).
-Patrick
On Jan 24, 2008 7:38 AM, Jeff Melching <jm...@us.ibm.com> wrote:
> I am trying to select only the version column of an entity to see if it
> was changed.
>
> If I run the following JPQL where verId is the version field of my
entity:
>
> select a.verId from AnEntity a where a.id = ?1;
>
> The generated sql is:
>
> SELECT FROM AN_ENTITY t0 WHERE t0.ID = ?
>
> Obviously, this is invalid sql syntax as the columns to select are
> missing. I am using a DB2 dictionary.
--
Patrick Linskey
202 669 5907
Re: Help selecting version column
Posted by Patrick Linskey <pl...@gmail.com>.
Hi,
Why are you trying to do this? Definitely it looks like this is a bug
in OpenJPA, but generally-speaking it's very cheap to pull back the
rest of the rows in a given record (i.e., select a frmo AnEntity a
where a.id = ?1).
-Patrick
On Jan 24, 2008 7:38 AM, Jeff Melching <jm...@us.ibm.com> wrote:
> I am trying to select only the version column of an entity to see if it
> was changed.
>
> If I run the following JPQL where verId is the version field of my entity:
>
> select a.verId from AnEntity a where a.id = ?1;
>
> The generated sql is:
>
> SELECT FROM AN_ENTITY t0 WHERE t0.ID = ?
>
> Obviously, this is invalid sql syntax as the columns to select are
> missing. I am using a DB2 dictionary.
--
Patrick Linskey
202 669 5907
Help selecting version column
Posted by Jeff Melching <jm...@us.ibm.com>.
I am trying to select only the version column of an entity to see if it
was changed.
If I run the following JPQL where verId is the version field of my entity:
select a.verId from AnEntity a where a.id = ?1;
The generated sql is:
SELECT FROM AN_ENTITY t0 WHERE t0.ID = ?
Obviously, this is invalid sql syntax as the columns to select are
missing. I am using a DB2 dictionary.