[jena] branch main updated: GH-1419: Implement DatasetGraph.size in order to pass tests

[an...@apache.org]

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andy pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/jena.git


The following commit(s) were added to refs/heads/main by this push:
     new 1226e212dc GH-1419: Implement DatasetGraph.size in order to pass tests
1226e212dc is described below

commit 1226e212dce12dd43ad85f4e8d2b887102d88703
Author: Andy Seaborne <an...@apache.org>
AuthorDate: Sun Jul 3 19:55:45 2022 +0100

    GH-1419: Implement DatasetGraph.size in order to pass tests
---
 .../org/apache/jena/dboe/storage/system/DatasetGraphStorage.java   | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/jena-db/jena-dboe-storage/src/main/java/org/apache/jena/dboe/storage/system/DatasetGraphStorage.java b/jena-db/jena-dboe-storage/src/main/java/org/apache/jena/dboe/storage/system/DatasetGraphStorage.java
index 6079e5c1d5..40215bb93f 100644
--- a/jena-db/jena-dboe-storage/src/main/java/org/apache/jena/dboe/storage/system/DatasetGraphStorage.java
+++ b/jena-db/jena-dboe-storage/src/main/java/org/apache/jena/dboe/storage/system/DatasetGraphStorage.java
@@ -205,4 +205,11 @@ public class DatasetGraphStorage extends DatasetGraphBaseFind implements Databas
         storage.removeAll(graphName, Node.ANY, Node.ANY, Node.ANY);
         prefixes.deleteAll(graphName);
     }
+
+    @Override
+    public long size() {
+        // Slow!
+        return stream()
+                .map(Quad::getGraph).filter(gn->!Quad.isDefaultGraph(gn)).distinct().count();
+    }
 }