carp84 commented on a change in pull request #8930: [FLINK-12955] HBase
LookupableTableSource
URL: https://github.com/apache/flink/pull/8930#discussion_r300952482
##########
File path:
flink-connectors/flink-hbase/src/main/java/org/apache/flink/addons/hbase/HBaseTableSchema.java
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@@ -179,8 +185,57 @@ void setCharset(String charset) {
*
* @return The charset for value strings and HBase identifiers.
*/
- String getStringCharset() {
+ public String getStringCharset() {
return this.charset;
}
+ /**
+ * A helper method returns a flat qualifiers list in defining order.
+ * Qualifier info is a Tuple3 representation:
+ * (byte[] columnFamily, byte[] qualifier, TypeInformation typeInfo)
+ */
+ public List<Tuple3<byte[], byte[], TypeInformation<?>>>
getFlatByteQualifiers() {
+ List<Tuple3<byte[], byte[], TypeInformation<?>>> qualifierList
= new ArrayList<>();
+
+ for (Map.Entry<String, Map<String, TypeInformation<?>>> entry :
familyMap.entrySet()) {
+ byte[] columnBytes = Bytes.toBytes(entry.getKey());
+ Map<String, TypeInformation<?>> qualifiers =
entry.getValue();
+ for (Map.Entry<String, TypeInformation<?>> qEntry :
qualifiers.entrySet()) {
+ qualifierList.add(new Tuple3<>(columnBytes,
Bytes.toBytes(qEntry.getKey()), qEntry.getValue()));
+ }
+ }
+ return qualifierList;
+ }
+
+ /**
+ * Adds a column defined by family, qualifier, and type to the table
schema.
+ *
+ * @param family the family name
+ * @param qualifier the qualifier name
+ * @param type the data type info of the qualifier
+ */
+ public void addColumn(String family, String qualifier,
TypeInformation<?> type) {
Review comment:
Change the method visibility to package-private
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