问题
Edit: According to the Derby community the Eclipse plug-in won't be maintained nor built automatically along the Derby project.
But is there anybody still using this plug-in? Because if so, is there a place he/she publishes the actual builds - which (hopefully) would run under Eclipse Juno?
Or, if this is a real dead end, what are the alternatives?
The original problem
Using
- jdk1.7.0_03
- Eclipse IDE for Java EE Developers (Win32) version Juno (build from 2012/06/14)
- derby-core-plugin 10.8.2 and -ui-plugin 1.1.3 (as there is no eclipse plugin for the latest version 10.9.1.0)
Problem
When trying to add a new derby nature (right-click on the java project -> "Apache Derby" -> "Add Apache Derby nature") I only get the following message:
Apache Derby Ui Plug-in
Error adding Derby jars to the project:
org.eclipse.ui.internal.WorkbenchWindow cannot be cast to
org.eclipse.jface.window.ApplicationWindow
Any ideas?
回答1:
Apache Derby db-derby-10.9.1.0-src / Eclipse 4.2.1 (Juno) / Java 7
Some kind of fix. Needs more research but this will work.
References:
db-derby-10.9.1.0-src/BUILDING.html
db-derby-10.8.1.2-src/plugins/eclipse/Readme.txt
Download the Apache Derby source zip.
Extract the zip.
Change to the source directory.
db-derby-10.9.1.0-src
Perform the following ant targets.
ant -quiet clobber
ant -quiet buildsource
ant -quiet buildjars
Build the core plugin.
ant plugin
You should now have a derby_core_plugin_10.9.1.zip file in the db-derby-10.9.1.0-src/jars/sane directory.
Note: Your Eclipse IDE should not be running. Extract the derby core plugin created by the ant plugin task above and copy the contents to your Eclipse plugins directory.
Run Eclipse.
Import the org.apache.derby.ui from the source tree.
(Import > General > Existing Projects into Workspace)
Open the plugin.xml file
On the Overview tab, bump up the version number to let's say 1.1.4.
Save the file.
The bug(s) are in ...
1.)package org.apache.derby.ui.popup.actions.AddDerbyNature.java
2.)package org.apache.derby.ui.popup.actions.RemoveDerbyNature.java
Where the .setStatus method are called in these two units.
Note: ( from the javadoc of ApplicationWindow )
void org.eclipse.jface.window.ApplicationWindow.setStatus(String message)
Sets or clears the message displayed in this window's status line (if it has >one). This method has no effect if the window does not have a status line.
Parameters:
message the status message, or null to clear it
So let's assume the IDE doesn't have a status line, so this call has no effect according to the Java doc.
Commenting out these method calls from:
AddDerbyNature.java
//((ApplicationWindow) window).setStatus(Messages.ADDING_NATURE);
//((ApplicationWindow) window).setStatus(Messages.DERBY_NATURE_ADDED);
RemoveDerbyNature.java
//((ApplicationWindow)window).setStatus(Messages.REMOVING_NATURE);
//((ApplicationWindow)window).setStatus(Messages.DERBY_NATURE_REMOVED);
Test(s):
Run As Eclipse Application.
Create a project. Maybe call it “org.apache.derby.ui.test”.
Right Click on project / Select Add Apache Derby nature
No error.
Right Click on project / Select Remove Apache Derby nature
No error.
Add the nature again to test the other menu items.
Right Click on project / Select Add Apache Derby nature
Right Click on project / Select Start Derby Network Server
No error, server was started.
From the console log ... Sun Jan 27 17:51:29 EST 2013 : Security manager installed using the Basic server security policy. Sun Jan 27 17:51:29 EST 2013 : Apache Derby Network Server - 10.9.1.0 - (Unversioned directory) started and ready to accept connections on port 1527
Note: Not sure what the Unversioned directory message means
Right Click on project / Select Stop Derby Network Server
No error, server was stopped.
Sun Jan 27 17:53:32 EST 2013 : Apache Derby Network Server - 10.9.1.0 - (Unversioned directory) shutdown
Start the server back up …
Right Click on project / Select Start Derby Network Server
create a sql folder.
create a test.sql file
my test sql file.
connect 'jdbc:derby://localhost:1527/TESTDB;create=true;user=test;password=test;';
-- drop User Indexes - ignore error if first time creating
drop index UserNameIdx1;
-- drop the table if it exists - ignore error if first time creating
drop table TEST_USER;
-- create the table
create table TEST_USER (
ID integer generated by default as identity,
USER_NAME varchar(255) not null,
FIRST_NAME varchar(255),
LAST_NAME varchar(255),
PASSWORD varchar(255),
ENABLED integer,
CREATED_STAMP timestamp,
CREATED_TX_STAMP timestamp,
LAST_UPDATED_STAMP timestamp,
LAST_UPDATED_TX_STAMP timestamp,
constraint TEST_USER_PK primary key (ID)
);
-- insert some data -- oops --- will mess with the ID generator, see the alter table restart line below.
insert into TEST_USER values(0, 'admin','admin','admin','admin',1,'2013-01-18 12:00:00.000','2013-01-18 12:00:00.000','2013-01-18 12:00:00.000','2013-01-18 12:00:00.000');
-- make the USER_NAME unique
create unique index UserNameIdx1 on TEST_USER(USER_NAME);
-- reset the generator
alter table TEST_USER alter column ID restart with 1;
Right click on file > Apache Derby > Run SQL Script using 'ij'
Refesh the projects workspace, now there should be a TESTDB folder.
Database was created. Ok.
Create a zip.
Right click on project > Export
Click on Plug-in Development > Deplyable plug-ins and fragments.
Destination Tab
Archive file
/derby_ui_plugin_1.1.4-fix.zip
Options Tab
Unselect Package plugins as individual JAR archives
Click finish.
Close / Exit the test instance.
Exit Eclipse.
Extract the zip that you just created from above.
Copy it's contents to the plugins directory to your Eclipse (Juno) plugins directory.
Restart Eclipse. Create a new project.
You should be able to install an Apache Derby (10.9.1) nature onto your projects.
Note: if you built this with Java 7, don't expect it to work for any lesser JVM version.
回答2:
The Derby UI plugin for Eclipse has not been maintained for several years, I believe, as none of the regular Derby committers uses that plugin, and there have not been any volunteers from the community to maintain it. So I think it only works with older versions of Eclipse.
I suspect that it is not very much work to bring it up to date to make it work with current Eclipse. If you are interested in that functionality, I'm sure the Derby community would love to hear from you!
See also: Is it possible to use derby from apache in Eclipse now that they stopped developing the derby plugin for Eclipse?
来源：https://stackoverflow.com/questions/11400225/where-did-the-apache-derby-eclipse-plug-in-go