https://github.com/ianturton/tablejoin

A WPS Process to execute a table join between two GeoServer layers or datasets.
https://github.com/ianturton/tablejoin

geoserver process tablejoinservice tjs wps

Last synced: 7 months ago
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A WPS Process to execute a table join between two GeoServer layers or datasets.

• Host: GitHub
• URL: https://github.com/ianturton/tablejoin
• Owner: ianturton
• License: gpl-3.0
• Created: 2019-03-07T16:39:45.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2019-03-07T17:40:32.000Z (over 6 years ago)
• Last Synced: 2025-01-30T20:52:15.139Z (8 months ago)
• Topics: geoserver, process, tablejoinservice, tjs, wps
• Language: Java
• Size: 21.3 MB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Table Join Process

A WPS Process to execute a table join between two GeoServer layers or datasets.

## Building

Set the required versions of GeoTools and GeoServer in the `pom.xml` file and then

    mvn clean install

    mvn assembly:single

    

will generate a zip file called `target/tablejoin-0.0.1-SNAPSHOT-bin.zip` which can be unpacked into the GeoServer `WEB-INF/lib` directory.

## Usage

You can specify the input data sets by reference or by explict listing in the request. You must also provide a filter that is the

equivalent of an SQL where clause. It should provide a filter which is true when you want a row joined to another, if multiple 

rows match the first one found will be used. If there is no match then the row will be omitted from the output.

Try a simple join with an XML file like this, it will join the provided CSV data with the USA States Layer using the filter

`"STATE_NAME" = "State"` as the join:

    

      TableJoin:simpleJoinTables

      

        

          target

          

            

              

                

              

            

          

        

        

          source

          

            

          

        

        

          joinfilter

          

            "STATE_NAME" = "State"

          

        

      

      

        

          result