flyrain commented on code in PR #5301:
URL: https://github.com/apache/iceberg/pull/5301#discussion_r924851645
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core/src/main/java/org/apache/iceberg/ManifestGroup.java:
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@@ -279,4 +287,84 @@ public void close() throws IOException {
}
});
}
+
+ abstract static class ScanTaskFactory<T extends ScanTask> {
+ private final String schemaAsString;
+ private final String specAsString;
+ private final DeleteFileIndex deletes;
+ private final ResidualEvaluator residuals;
+ private final boolean dropStats;
+
+ ScanTaskFactory(PartitionSpec spec, DeleteFileIndex deletes,
ResidualEvaluator residuals, boolean dropStats) {
+ this.schemaAsString = SchemaParser.toJson(spec.schema());
+ this.specAsString = PartitionSpecParser.toJson(spec);
+ this.deletes = deletes;
+ this.residuals = residuals;
+ this.dropStats = dropStats;
+ }
+
+ abstract CloseableIterable<T>
createTasks(CloseableIterable<ManifestEntry<DataFile>> entries);
+
+ String schemaAsString() {
+ return schemaAsString;
+ }
+
+ String specAsString() {
+ return specAsString;
+ }
+
+ DeleteFileIndex deletes() {
+ return deletes;
+ }
+
+ ResidualEvaluator residuals() {
+ return residuals;
+ }
+
+ boolean shouldKeepStats() {
+ return !dropStats;
+ }
+
+ abstract static class Builder<T extends ScanTask> {
Review Comment:
It is basically a mini builder with less code involved.
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