Can one import an entire workspace into eclipse? - java

I have searched around the interwebs and have failed to find the answer to this question so I thought I would ask the wise people here.
I reformatted my computer recently and I backed up all my data including my Eclipse workspace but I failed to export my projects using Eclipse itself. I replaced my workspace file back into Eclipse but it does not show any of my projects as run-able Eclipse projects. Is there a provision to import a whole workspace into Eclipse? Is there information in other files that Eclipse requires or will I just need to manual rebuild the project? Thanks for your help and advice all.

You need to browse earlier workspace. Projects inside workspace automatically appears in project panel. However if they don't, goto File-> import menu and select "import existing" and browse to project folder in workspace. It should work.

You can right click on the Package Explorer and select Import. There is an option called Existing projects into workspace. Select that and then select your folder. It will show importable projects. Select them all and import.

You can open directly a Workspace created with an earlier version Eclipse. The new instance will then update the Workspace to the newer metadata configuration. This might prevent earlier Eclipse versions of opening the updated Workspace.
To deal with this I keep Workspaces of different Eclipse versions in different folders, in a structure like this:
Eclipse.Neon
├── Workspace.DomainA
└── Workspace.DomainB
Eclipse.Oxygen
├── Workspace.DomainX
└── Workspace.DomainY
If I wish to import, say, DomainA to Eclipse Oxygen I simply copy it to the Eclipse.Oxygen folder:
cp -r Eclipse.Neon/Workspace.DomainA Eclipse.Oxygen/
And then open that Workspace with Oxygen.
One final note: Workspace management is considerably easier if projects are kept outside its folder, e.g. in a general code versioning folder like git or svn.

Related

Can I convert eclipse source folders into packages?

I've forked a Github project, used Eclipse to clone it locally, and imported that as a general project into Eclipse.
The accompanying .project file is an Eclipse .project file with the proper "nature" and "buildCommand" xml tags.
So it seems like a valid Eclipse project. However, I'm unable to specify a run configuration or configure the build path.
When I select the Build Path popup menu item, it says "no actions available" in grayed out text. When I select "Run/Run As" from the main menu,
it shows (none applicable). I'm wondering if the problem is that the project imported completely as source folders:
There are no packages to speak of. I created another project from scratch, and created the proper source folders and packages as needed
to match the package statements in the source code. After manually importing the source from the git repo, I can build and run that project.
If the lack of packages is indeed the problem, is there a quick way in Eclipse to convert source folders to packages?
What you did is you have probably cloned the repo in Eclipse and then Imported this project through a New Project Wizard, because in GitHub there is no existing .project (and no .classpath) files.
The "New Project Wizard" will create a set of defaults for a java project (I suspect that you selected just that), but is anaware of Maven structure, so all source folders will not be recognized and you will end up having to define them on your own. Worse, you will be unaware of any special parts of the Maven build that might be configured within pom.xml.
Because this project uses Maven for building, it would be better to use M2Eclipse while importing it. Install it using Help->Install new software.
Then there are a couple of steps required to make it use all Eclipse features.
Keep your cloned copy of the repository or clone again if you want to start from scratch. Then use File->Import feature to import a maven project into the workspace. Select Exisiting Maven Projects and point to the directory containing pom.xml file in the cloned repo. This will use Maven integration in Eclipse to generate .project and .classpath files based on pom.xml contents, so you will be able to more closely mimic Maven build in Eclipse. All source folders should be properly discovered this way. Eclipse might want to install some additional integrations for Maven features that this particular project uses. Let it, if that is the case.
Now, you will have the project operational and compiling in Eclipse, but it will not be aware that it is managed by Git... This is because M2Eclipse and Git Team provider are not integrated (at least they weren't when I last checked). In order to be able to commit to the repository in Eclipse, remove the project from workspace, but without deleting contents. Then, import from Repository view using Import Projects/Import exsisting Eclipse projects. Since necessary .project file is already generated, Eclipse will autodiscover the project and will use the right configuration prepared earlier by M2Eclipse.
In the end you will have a properly configured Maven project with Git as a team provider for it.
If this is a project meant to be built by Maven that contains a pom.xml file, install M2E before importing the project from your local cloned repository. It will handle this.
Right click at root of project select properties, in the sources tab add the folder "src/main/java" as source folder
Other way is to configure facet as java

How to import a spring project in STS

Just by a mistake I had deleted a spring project in STS.To use it back I borrowed the same project from my friend in zip format but when I tried to import it says
Some projects cannot be imported because they already exist in the workspace
Following is the way I tried to import
file->import->general->existing projects into worspace->select archive file
and after browse when I select the zip project
Some projects cannot be imported because they already exist in the workspace
and the finish button and next button are in disabled state.Please help me
The workspace in STS/Eclipse is not automatically the same as the file structure that you have on disc in your workspace directory. You can have projects in this workspace folder or somewhere else on disc.
To get them into your project explorer (and access them from inside STS/Eclipse), you need to import them (Import Existing Projects into Workspace). Then you can select the folder where those projects are located in. In case you have those projects already in your workspace folder on disc, you can choose the workspace folder as root folder in the wizard. It will show all the projects that exist on disc in that folder and grey those out that are already imported/referenced in your workspace in Eclipse.
Make sure it is really not in workspace, also if there aren't any other projects with the same name. If not, just delete the .metadata folder or create a new workspace.
Check if you still have the project in folder of the workspace on disk. You may have deleted in STS, without checking 'Delete on disk'. So, the project may be still there in the workspace folder though its deleted in STS.
I get this issue from time to time. Usually I just open a new workspace but sounds like you don't want to loose other projects.
I simply open the.project file in my project and change the name of the project in name tag.
Good Luck!
Probably whey you 'accidentally deleted' your project, you only deleted it from the Eclipse workspace, but not from the actual workspace folder on your hard-drive (as other people pointed out, Eclipse can arbitrarily map workspace projects to files on disk, so it is possible for a project to be 'deleted' from your Eclipse workspace but still exist on disk.
The good news is the files you deleted are actually still there.
Instead of importing your project from a zip, you may just want to import those files from the workspace folder back into your Eclipse workspace.
Generally this kind of problems not occurred you can go to Project option and clean and than restart STS.
May be STS is not synched with the latest configured project.
When you launch Spring Tools Suite, it will ask you to Select directory as workspace as below:
If the directory you selected here (i.e., workspace directory) is the same as the directory where the project that you are going to import resides, then you will get Some projects cannot be imported because they already exist in the workspace.
Therefore, to solve the issue,
Close Spring Tool Suite
Create a new directory
Launch Spring Tool Suite again
And, select that as your workspace
Launch the application and you would be able to import as you mentioned in your question
It solved my problem.
Hope it helps..
Happy Coding!!
the problem is that when you delete a project maybe sts only close it.
Try View Menu --> uncheck closed projects
Now you will see all closed project, simply delete it.

Eclipse doesn't show projects in package explorer

I keep my workspace folder in the Dropbox folder so I can use it on different computers. Usually there isn't a problem. Today however I opened Eclipse and found it doesn't show the projects in the package explorer.
I checked and it's set to the correct workspace folder.
I tried to Import existing projects into workspace, but Eclipse doesn't allow importing the projects because 'they already exist in the workspace' - even though they don't appear.
Will appreciate your help.
Keep your project files in DropBox. You shouldn't share a workspace like that -- it will inevitably lead to issues like the one you describe.
That is, keep the project folder, along with the .project, .classpath, and .settings/ in your shared Dropbox space. Create a new workspace on each computer, then "Import existing project" into each workspace, selecting your project in Dropbox, being sure to unselect "copy projects into workspace".
I don't have idea about using dropBox-BUT-However
For your question::
I tried to Import existing projects into workspace, but Eclipse doesn't allow importing the projects because 'they already exist in the workspace' - even though they don't appear.
Possibility:: Projects are not in Eclipse explorer but a copy of it exists in the workspace folder so eclipse is not allowing you to add the projects with same name again.
Solution:: Create a new workspace and then use dropbox to import the projects.
What you can also try is do
Create new General Project
Select in current workspace
Create project with name of an already existing project in your workspace
I seem to remember using this to "hydrate" already existing projects in my workspace into the eclipse package explorer.
This happened to me and it was because I inadvertently filtered out some of the files in the filters option in the Package Explorer.
Inside PackageExplorer -> Small drop down on top right side -> Filters
Un-select all and see if your files are now visible. Worked for me.

Eclipse Error Logging - Not Showing Because of imported from GIT?

I have just started using the built in GIT functionality of Eclipse and I have everything set up and working, my problem as of now is that I realized my project that I imported from GIT is not reporting errors in my Java like the local copy would. I've tried the following,
Project -> Clean
When I right click on the property files of the folder I can't seem to choose a Java Builder.
It depends on how you import your Java (Git managed) project into the Eclipse workspace.
See "Importing a GitHub project into Eclipse" as an example.
The key is for your Eclipse project to reference the sources in the git repo folder (kept outside the Eclipse workspace folder, in any place you want).

How to use TortoiseSVN together with Eclipse

I want to use TortoiseSVN together with Eclipse.
For now I just want to try it out.
So I use a local folder as repository.
I have installed TortoiseSVN 1.7.13.
I created a folder called 'REPOSITORY' and chose 'Create repository here' from
the context menu.
As other websites told, I installed Subclipse 1.8.22 in Eclipse.
I use the SVNKit1.7.9 as client or connector (Whatever it is called).
I had already some projects in eclipse's workspace.
From the context menu I chose 'Team->Share Project'.
That is what other websites told to do.
It did show the normal commit dialog and so on.
The projects are marked as commited but the folder 'REPOSITORY'
is still small in size.
It seems, that the projects where not copied or moved to the repository.
At work we have a server based SVN. I just want to have something like that at home.
Did I miss something?
Isn't it the purpose of the SVN repository to hold a copy of the projects?
So the commited projects should be inside the REPOSITORY, right?
Greetings
Mike
Apparently, you have to manually import the project in Eclipse into the repository created with TortoiseSVN before actually committing to it.
This other page might help you. It gives a very detailed walkthrough of how to set up exactly the kind of local system you want. In essence:
In Eclipse, delete the project but not its contents (Delete project contents on disk unchecked). This will leave the project's folder under your workspace location untouched.
Outside Eclipse, import the project folder into the repository previously created with TortoiseSVN (Right click on folder > TortoiseSVN > Import and select the URL of the repository). Once imported, you may wish to delete the project folder.
Back in Eclipse, checkout the project from TortoiseSVN's repository (e.g. Right click on Package Explorer > Import.. > SVN > Projects from SVN).
Hope that helps.
If your project's folder structure and package structure are the same, you can use Eclipse Subversive. It's just a plugin for eclipse and provides all features of TortoiseSVN

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