Hintergrund

Die Volltextsuche sortiert gefundene Objekte nach Label

Problem

In der Funktion QuickSearchCommand::sortResult() werden Objekte nach ihrem Label sortiert. Wenn ein Objekt kein Label (null) hat, produziert dies eine NullPointerEx:

Caused by: java.lang.NullPointerException
	at java.base/java.util.Comparator.lambda$comparing$77a9974f$1(Comparator.java:469)
	at java.base/java.util.TimSort.binarySort(TimSort.java:296)
	at java.base/java.util.TimSort.sort(TimSort.java:239)
	at java.base/java.util.Arrays.sort(Arrays.java:1515)
	at java.base/java.util.ArrayList.sort(ArrayList.java:1750)
	at java.base/java.util.Collections.sort(Collections.java:179)
	at com.top_logic.element.layout.meta.search.quick.QuickSearchCommand.sortResult(QuickSearchCommand.java:411)
	at com.top_logic.element.layout.meta.search.quick.AbstractSearchCommand.convertSearchResultSet(AbstractSearchCommand.java:365)
	at com.top_logic.element.layout.meta.search.quick.AbstractSearchCommand.search(AbstractSearchCommand.java:230)
	at com.top_logic.element.layout.meta.search.quick.AbstractSearchCommand.executeCommand(AbstractSearchCommand.java:190)
	at com.top_logic.element.layout.meta.search.quick.QuickSearchView$1.handleKeyEvent(QuickSearchView.java:153)
	at com.top_logic.layout.form.model.AbstractFormField.dispatchKeyEvent(AbstractFormField.java:712)
	at com.top_logic.layout.form.control.AbstractFormFieldControlBase.dispatchKeyEvent(AbstractFormFieldControlBase.java:103)
	at com.top_logic.layout.basic.KeyCodeHandler.execute(KeyCodeHandler.java:84)
	at com.top_logic.layout.basic.AbstractControlBase.executeCommand(AbstractControlBase.java:787)
	at com.top_logic.layout.basic.component.ControlSupport.executeCommand(ControlSupport.java:189)
	at com.top_logic.layout.basic.component.ControlComponent$DispatchAction.handleCommand(ControlComponent.java:210)
	at com.top_logic.tool.boundsec.CommandHandlerUtil.handleCommand(CommandHandlerUtil.java:27)
	at com.top_logic.mig.html.layout.LayoutComponent.dispatchCommand(LayoutComponent.java:2442)
	at com.top_logic.mig.html.layout.CommandDispatcher.internalDispatchCommand(CommandDispatcher.java:427)

Lösung

Zur Sortierung wird der LabelComparator benutzt. Dieser ist null-fest und sortiert zusätzlich bzgl. der Locale des Nutzers.

Test

Kein Test.