Please keep messages on the list.
Again, I would look at the tutorial
http://wotutorial.furfly.com/
and see how what you have differs from that. Following that will
lead you away from some bad habits that you are starting with.
I don't see any obvious errors in the code below.
Chuck
On Dec 12, 2007, at 3:44 AM, Theodore Petrosky wrote:
This is a test. I wanted to accomplish one thing.
(well a couple)
1. use the eomodeler to create the table with only two
rows. the identifier and a text row.
2. successfully create this table in the database.
3. get eogenerator to create the java object for my
model
4. instantiate a copy of an object in my 'main'
component.
I believe that I have created the object definintion.
Velocity Generator created the com.wotest.eo.thetable
in the correct place (Sources).
Here is my Main.java:
import com.webobjects.appserver.WOComponent;
import com.webobjects.appserver.WOContext;
import com.webobjects.eoaccess.EOUtilities;
import com.wothest.eo.thetable;
public class Main extends WOComponent {
private static final long serialVersionUID = 1L;
public thetable newtable;
public Main(WOContext context) {
super(context);
newtable = new thetable();
}
}
If I comment out //newtable = new thetable();
I get a "Hello World" page.
Here is thetable.java:
package com.wothest.eo;
import org.apache.log4j.Logger;
public class thetable extends _thetable {
private static Logger log =
Logger.getLogger(thetable.class);
}
this is _thetable.java:
// DO NOT EDIT. Make changes to thetable.java
instead.
package com.wothest.eo;
import com.webobjects.eoaccess.*;
import com.webobjects.eocontrol.*;
import com.webobjects.foundation.*;
import java.math.*;
import java.util.*;
import org.apache.log4j.Logger;
@SuppressWarnings("all")
public abstract class _thetable extends
EOGenericRecord {
public static final String ENTITY_NAME = "thetable";
// Attributes
public static final String FIRSTNAME_KEY =
"firstname";
// Relationships
private static Logger LOG =
Logger.getLogger(_thetable.class);
public thetable
localInstanceOfthetable(EOEditingContext
editingContext) {
thetable localInstance =
(thetable)EOUtilities.localInstanceOfObject(editingContext,
this);
if (localInstance == null) {
throw new IllegalStateException("You attempted
to localInstance " + this + ", which has not yet
committed.");
}
return localInstance;
}
public String firstname() {
return (String) storedValueForKey("firstname");
}
public void setFirstname(String value) {
if (_thetable.LOG.isDebugEnabled()) {
_thetable.LOG.debug( "updating firstname from " +
firstname() + " to " + value);
}
takeStoredValueForKey(value, "firstname");
}
public static thetable
createthetable(EOEditingContext editingContext, String
firstname
) {
thetable eo =
(thetable)EOUtilities.createAndInsertInstance(editingContext,
_thetable.ENTITY_NAME);
eo.setFirstname(firstname);
return eo;
}
public static NSArray<thetable>
fetchAllthetables(EOEditingContext editingContext) {
return _thetable.fetchAllthetables(editingContext,
null);
}
public static NSArray<thetable>
fetchAllthetables(EOEditingContext editingContext,
NSArray<EOSortOrdering> sortOrderings) {
return _thetable.fetchthetables(editingContext,
null, sortOrderings);
}
public static NSArray<thetable>
fetchthetables(EOEditingContext editingContext,
EOQualifier qualifier, NSArray<EOSortOrdering>
sortOrderings) {
EOFetchSpecification fetchSpec = new
EOFetchSpecification(_thetable.ENTITY_NAME, qualifier,
sortOrderings);
fetchSpec.setIsDeep(true);
NSArray<thetable> eoObjects =
(NSArray<thetable>)editingContext.objectsWithFetchSpecification
(fetchSpec);
return eoObjects;
}
public static thetable
fetchthetable(EOEditingContext editingContext, String
keyName, Object value) {
return _thetable.fetchthetable(editingContext, new
EOKeyValueQualifier(keyName,
EOQualifier.QualifierOperatorEqual, value));
}
public static thetable
fetchthetable(EOEditingContext editingContext,
EOQualifier qualifier) {
NSArray<thetable> eoObjects =
_thetable.fetchthetables(editingContext, qualifier,
null);
thetable eoObject;
int count = eoObjects.count();
if (count == 0) {
eoObject = null;
}
else if (count == 1) {
eoObject = (thetable)eoObjects.objectAtIndex(0);
}
else {
throw new IllegalStateException("There was more
than one thetable that matched the qualifier '" +
qualifier + "'.");
}
return eoObject;
}
public static thetable
fetchRequiredthetable(EOEditingContext editingContext,
String keyName, Object value) {
return
_thetable.fetchRequiredthetable(editingContext, new
EOKeyValueQualifier(keyName,
EOQualifier.QualifierOperatorEqual, value));
}
public static thetable
fetchRequiredthetable(EOEditingContext editingContext,
EOQualifier qualifier) {
thetable eoObject =
_thetable.fetchthetable(editingContext, qualifier);
if (eoObject == null) {
throw new NoSuchElementException("There was no
thetable that matched the qualifier '" + qualifier +
"'.");
}
return eoObject;
}
public static thetable
localInstanceOfthetable(EOEditingContext
editingContext, thetable eo) {
thetable localInstance = (eo == null) ? null :
(thetable)EOUtilities.localInstanceOfObject(editingContext,
eo);
if (localInstance == null && eo != null) {
throw new IllegalStateException("You attempted
to localInstance " + eo + ", which has not yet
committed.");
}
return localInstance;
}
}
Can you help with this? I don't get what I am doing
wrong.
Ted
--- Chuck Hill <[EMAIL PROTECTED]> wrote:
On Dec 11, 2007, at 7:44 PM, Theodore Petrosky
wrote:
Okay, I have a little experience with WO using
xcode
and I am trying to understand eclipse. I have what
I
consider a very simple example and I need to
understand what is going on.
Eclipse 3.3.1.1
WOlips 3.3.4742
I am trying to create a new object. I am connected
to
a postgresql backend. I created a table that has a
primary key (integer) and a single text column
called
firstname. I generated the object using the
Velocity
EOgenerator as I could never get the
javaEOGenerator
to work...
Everything appears to be okay until I try to
create a
new object. I tried:
newtable = new thetable();
That is a rather odd / poor choice of name for an
entity. May I
suggest a tutorial?
http://wotutorial.furfly.com/
It is not complete, but you may find it useful.
Eclipse complains that I need to import thetable
and I
import it.
Xcode would complain of the same thing.
So the only thing I have is a "Hello World"
web page where I am trying to create an object.
This
is my error:
Application: wotest
Error: java.lang.reflect.InvocationTargetException
exception
Reason:
java.lang.reflect.InvocationTargetException
What am I doing wrong? I need some help. I feel
like I
am about to give up on webobjects. I used to get
it
working fairly easily with xcode...
I don't see that this has _anything_ do with with
Xcode vs Eclipse.
You have an error in your code somewhere. Is there
any more to the
error message than that?
Chuck
--
Practical WebObjects - for developers who want to
increase their
overall knowledge of WebObjects or who are trying to
solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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http://www.global-village.net/products/practical_webobjects
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