Github user tomatophantastico commented on a diff in the pull request:
https://github.com/apache/metamodel/pull/153#discussion_r130083327
--- Diff: core/src/main/java/org/apache/metamodel/convert/Converters.java
---
@@ -136,15 +135,19 @@ public static DataContext
addTypeConverters(DataContext dataContext, Map<Column,
* used (eg. with the {@link #addTypeConverters(DataContext,
Map)}
* method) to decorate the DataContext with type converters.
*/
- public static Map<Column, TypeConverter<?, ?>>
autoDetectConverters(DataContext dataContext, Column[] columns,
+ public static Map<Column, TypeConverter<?, ?>>
autoDetectConverters(DataContext dataContext, final List<Column> columns,
int sampleSize) {
- columns = MetaModelHelper.getColumnsBySuperType(columns,
SuperColumnType.LITERAL_TYPE);
final Map<Column, TypeConverter<?, ?>> result = new
HashMap<Column, TypeConverter<?, ?>>();
- Table[] tables = MetaModelHelper.getTables(columns);
- for (Table table : tables) {
- Column[] tableColumns = MetaModelHelper.getTableColumns(table,
columns);
- autoDetectConvertersInternally(dataContext, table,
tableColumns, sampleSize, result);
- }
+ columns.stream()
+ .filter(col -> col.getType() != null)
+ .filter(col ->
col.getType().getSuperType().equals(SuperColumnType.LITERAL_TYPE))
+ // group by table
+ .collect(Collectors.toMap(Column::getTable,Arrays::asList))
+ //and detect it
+ .forEach((tab, cols) ->{
+
autoDetectConvertersInternally(dataContext,tab,cols,sampleSize,result);
--- End diff --
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