[ https://issues.apache.org/jira/browse/BEAM-3746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Scott Wegner reassigned BEAM-3746: ---------------------------------- Assignee: Scott Wegner (was: Kenneth Knowles) > Count.globally should override getIncompatibleGlobalWindowErrorMessage to > tell the user the usage that is currently only in javadoc > ----------------------------------------------------------------------------------------------------------------------------------- > > Key: BEAM-3746 > URL: https://issues.apache.org/jira/browse/BEAM-3746 > Project: Beam > Issue Type: Bug > Components: sdk-java-core > Reporter: Kenneth Knowles > Assignee: Scott Wegner > Priority: Major > Labels: beginner, newbie, starter > Time Spent: 1h 40m > Remaining Estimate: 0h > > https://beam.apache.org/documentation/sdks/javadoc/2.3.0/org/apache/beam/sdk/transforms/Count.html#globally-- > "Note: if the input collection uses a windowing strategy other than > GlobalWindows, use Combine.globally(Count.<T>combineFn()).withoutDefaults() > instead." > But the actual crash a user gets is: > "java.lang.IllegalStateException: Default values are not supported in > Combine.globally() if the output PCollection is not windowed by > GlobalWindows. Instead, use Combine.globally().withoutDefaults() to output an > empty PCollection if the input PCollection is empty, or > Combine.globally().asSingletonView() to get the default output of the > CombineFn if the input PCollection is empty." > There is a method that exists solely to make this actually useful, so we > should use it! -- This message was sent by Atlassian JIRA (v7.6.3#76005)