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ASF GitHub Bot commented on FLINK-3702: --------------------------------------- Github user ggevay commented on a diff in the pull request: https://github.com/apache/flink/pull/2094#discussion_r76040566 --- Diff: flink-core/src/main/java/org/apache/flink/api/java/typeutils/PojoTypeInfo.java --- @@ -317,7 +308,39 @@ public int getFieldIndex(String fieldName) { return new PojoSerializer<T>(getTypeClass(), fieldSerializers, reflectiveFields, config); } - + + @Override + @PublicEvolving + public <F> FieldAccessor<T, F> getFieldAccessor(String fieldExpression, ExecutionConfig config) { + + FieldAccessor.FieldExpressionDecomposition decomp = FieldAccessor.decomposeFieldExpression(fieldExpression); + + // get field + PojoField field = null; + TypeInformation<?> fieldType = null; + for (int i = 0; i < fields.length; i++) { + if (fields[i].getField().getName().equals(decomp.head)) { + field = fields[i]; + fieldType = fields[i].getTypeInformation(); + break; + } + } + if (field == null) { + throw new InvalidFieldReferenceException("Unable to find field \""+decomp.head+"\" in type "+this+"."); + } + + if(decomp.tail == null) { --- End diff -- a0939f7762fa5ac71e5975a36fc31c39fd0cf5dd > DataStream API PojoFieldAccessor doesn't support nested POJOs > ------------------------------------------------------------- > > Key: FLINK-3702 > URL: https://issues.apache.org/jira/browse/FLINK-3702 > Project: Flink > Issue Type: Improvement > Components: DataStream API > Affects Versions: 1.0.0 > Reporter: Robert Metzger > Assignee: Gabor Gevay > > The {{PojoFieldAccessor}} (which is used by {{.sum(String)}} and similar > methods) doesn't support nested POJOs right now. > As part of FLINK-3697 I'll add a check for a nested POJO and fail with an > exception. -- This message was sent by Atlassian JIRA (v6.3.4#6332)