# Wiki source code of Migrating to the Eclipse Layout Kernel

Last modified by uru on 2023/07/11 10:33
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author | version | line-number | content
--- | --- | --- | ---
|  | 1 | The [[//Eclipse Layout Kernel (ELK)//>>url:http://www.eclipse.org/elk||shape="rect"]] is the official Eclipse project our layout technology will move to. As part of the move, expect changes in these areas:
|  | 2 |
|  | 3 | * Plugin names
|  | 4 | * Extension point names
|  | 5 | * Package names
|  | 6 | * Plugin structure
|  | 7 | * KGraph meta model
|  | 8 |
|  | 9 | To make migration easier for everyone, this page is intended to track all changes.
|  | 10 |
|  | 11 | * The classes formerly provided by {{code language="none"}}de.cau.cs.kieler.core{{/code}} are now to be found in {{code language="none"}}org.eclipse.elk.core{{/code}}, with the following exceptions:
|  | 12 | ** The {{code language="none"}}...properties{{/code}} package was moved to the {{code language="none"}}.graph{{/code}} plugin.
|  | 13 | ** {{code language="none"}}ForwardingInputStream{{/code}} was moved to the {{code language="none"}}...graphviz.layouter{{/code}} plugin.
|  | 14 | ** {{code language="none"}}ForkedOutputStream{{/code}} was moved to the {{code language="none"}}...graphviz.layouter{{/code}} plugin.
|  | 15 | * All pre-defined layout types now have the ID {{code language="none"}}org.eclipse.elk.type.XXX{{/code}}
|  | 16 | * All pre-defined diagram types now have the ID {{code language="none"}}org.eclipse.elk.diagram.XXX{{/code}}
|  | 17 | * All pre-defined layout options now have the ID {{code language="none"}}org.eclipse.elk.XXX{{/code}} (except for options defined by specific layout algorithms, which have the ID {{code language="none"}}org.eclipse.elk.ALGORITHM.XXX{{/code}})
|  | 18 | ** {{code language="none"}}de.cau.cs.kieler.klay.layered.portAnchor{{/code}} is now {{code language="none"}}org.eclipse.elk.portAnchor{{/code}} instead of {{code language="none"}}org.eclipse.elk.layered.portAnchor{{/code}}
|  | 19 | * All pre-defined layout algorithms now have the ID {{code language="none"}}org.eclipse.elk.algorithm.XXX{{/code}}
|  | 20 |
|  | 21 |
|  | 22 |
|  | 23 | * (((
|  | 24 | {{code language="none"}}IKielerProgressMonitor{{/code}} -> {{code language="none"}}IElkProgressMonitor{{/code}}
|  | 25 | )))
|  | 26 | * (((
|  | 27 | {{code language="none"}}ILayoutConfig{{/code}} -> {{code language="none"}}LayoutConfigurator{{/code}}
|  | 28 | )))
|  | 29 | * (((
|  | 30 | {{code language="none"}}IVolatileLayoutConfig{{/code}}
|  | 31 |
|  | 32 | *
|  | 33 |
|  | 34 | use {{code language="none"}}LayoutConfigurator{{/code}}
|  | 35 |
|  | 36 | *
|  | 37 |
|  | 38 | to set global options
|  | 39 |
|  | 40 | {{code language="java" theme="Eclipse" linenumbers="true"}}
|  | 41 | IVolatileLayoutConfig#setValue(prop, value)
|  | 42 | -->
|  | 43 | LayoutConfigurator#configure(KGraphElement.class).setProperty(prop, value)
|  | 44 | {{/code}}
|  | 45 | )))
|  | 46 | * {{code language="none"}}IDiagramLayoutManager{{/code}} -> {{code language="none"}}IDiagramLayoutConnector{{/code}}
|  | 47 | * (((
|  | 48 | {{code language="none"}}LayoutManagerService{{/code}} -> {{code language="none"}}LayoutConnectorsService{{/code}}
|  | 49 | )))
|  | 50 | * (((
|  | 51 | {{code language="none"}}LayoutListeners{{/code}}:
|  | 52 |
|  | 53 | {{code language="java" theme="Eclipse" linenumbers="true"}}
|  | 54 | DiagramLayoutEngine.INSTANCE.addLayoutTerminatedListener(new DiagramLayoutEngine.ILayoutTerminatedListener() {
|  | 55 | -->
|  | 56 | LayoutConnectorsService.getInstance().addLayoutListener(new ILayoutListener() {
|  | 57 | {{/code}}
|  | 58 | )))
|  | 59 | * (((
|  | 60 | {{code language="none"}}KimlUtil.loadDataElements(...){{/code}} -> {{code language="none"}}GraphDataUtil.loadDataElements(...){{/code}}
|  | 61 | )))
|  | 62 |
|  | 63 | Perhaps of lesser interest:
|  | 64 |
|  | 65 | * We now depend on Google Guava 15 instead of 10.
|  | 66 |
|  | 67 | == LayoutOptions ==
|  | 68 |
|  | 69 | For the moment, see [[this >>url:https://rtsys.informatik.uni-kiel.de/confluence/questions/20153317/answers/20153320||shape="rect"]]confluence question.
|  | 70 |
|  | 71 | (% style="display: none;" %)
|  | 72 | (((
|  | 73 | 521
|  | 74 | )))

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