danny0405 commented on a change in pull request #9994: [FLINK-14322][table-api]
Add watermark information in TableSchema
URL: https://github.com/apache/flink/pull/9994#discussion_r341425950
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File path:
flink-table/flink-table-common/src/main/java/org/apache/flink/table/api/TableSchema.java
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@@ -54,44 +58,70 @@
private final DataType[] fieldDataTypes;
- private final Map<String, Integer> fieldNameToIndex;
+ /** Mapping from qualified field name to (nested) field type. */
+ private final Map<String, DataType> typesByName;
- private TableSchema(String[] fieldNames, DataType[] fieldDataTypes) {
+ private final List<WatermarkSpec> watermarkSpecs;
+
+ private TableSchema(String[] fieldNames, DataType[] fieldDataTypes,
List<WatermarkSpec> watermarkSpecs) {
this.fieldNames = Preconditions.checkNotNull(fieldNames);
this.fieldDataTypes =
Preconditions.checkNotNull(fieldDataTypes);
+ this.watermarkSpecs =
Preconditions.checkNotNull(watermarkSpecs);
if (fieldNames.length != fieldDataTypes.length) {
- throw new TableException(
+ throw new ValidationException(
Review comment:
+1 to move all the checks to builder, these sanity check should not happen
in the constructor.
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