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Adding item to a filtered List [message #1828496]

Wed, 10 June 2020 19:09

Ralf Heydenreich

Messages: 235
Registered: July 2009

Senior Member

Hi all,
I've using GlazedList with NatTable. If I filter the list, it is reduced to the items matching the filter. Now, if I change that element I get an exception while refreshing the list:

21:05:40.161 [Equinox Log Thread - Equinox Container: 9adc8e4d-3c44-497f-ad11-6d744d75bec9] ERROR org.eclipse.e4.ui.workbench - Internal Error
java.lang.IndexOutOfBoundsException: Cannot add at 2 on list of size 1
	at ca.odell.glazedlists.TransformedList.add(TransformedList.java:73) ~[na:na]
	at ca.odell.glazedlists.impl.Diff.replaceAll(Diff.java:84) ~[na:na]
	at ca.odell.glazedlists.impl.Diff.replaceAll(Diff.java:29) ~[na:na]
	at ca.odell.glazedlists.GlazedLists.replaceAll(GlazedLists.java:69) ~[na:na]
	at de.mypackage.MyListTable.lambda$1(MyListTable.java:373) ~[na:na]
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40) ~[na:na]
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:185) ~[na:na]
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3963) ~[na:na]
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3590) ~[na:na]
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1160) ~[na:na]
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) ~[na:na]
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1049) ~[na:na]
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) ~[na:na]
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:166) ~[na:na]
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) ~[na:na]
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137) ~[na:na]
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107) ~[na:na]
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) ~[na:na]
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) ~[org.eclipse.equinox.launcher_1.5.600.v20191014-2022.jar:na]
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) ~[org.eclipse.equinox.launcher_1.5.600.v20191014-2022.jar:na]
	at org.eclipse.equinox.launcher.Main.run(Main.java:1465) ~[org.eclipse.equinox.launcher_1.5.600.v20191014-2022.jar:na]
	at org.eclipse.equinox.launcher.Main.main(Main.java:1438) ~[org.eclipse.equinox.launcher_1.5.600.v20191014-2022.jar:na]

I've called

GlazedLists.replaceAll(treeFilteredIssues, listFromDatabase, false);

How can I fix this? Thanks in advance,

Ralf

[Updated on: Wed, 10 June 2020 19:15]

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Re: Adding item to a filtered List [message #1828498 is a reply to message #1828496]

Wed, 10 June 2020 21:10

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

Hard to tell without a context. But maybe the reason is that no write lock is acquired.

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Re: Adding item to a filtered List [message #1828503 is a reply to message #1828498]

Thu, 11 June 2020 05:59

Ralf Heydenreich

Messages: 235
Registered: July 2009

Senior Member

Hi,
I think the reason is that treeFilteredIssues only has one element (the one matching the filter), but listFromDatabase is the complete list of all relevant records from database. So, a "replaceAll" fails because there are not "enough" entries in the list. But I don't know how to handle this. I've built the layer stack according to one of your GlazedLists examples.

/Ralf

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Re: Adding item to a filtered List [message #1828525 is a reply to message #1828503]

Thu, 11 June 2020 11:07

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

And why are you not operating on the base EventList instead of the FilterList? The filter and the tree structure should reapply because of the change Events fired by the base list changes.

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