changes to StorageAdapter needed for vector samples

Author: normen662

fdb-extensions/src/main/java/com/apple/foundationdb/async/hnsw/AccessInfo.java

@@ -0,0 +1,54 @@
+/*
+ * AccessInfo.java
+ *
+ * This source file is part of the FoundationDB open source project
+ *
+ * Copyright 2015-2025 Apple Inc. and the FoundationDB project authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.apple.foundationdb.async.hnsw;
+
+import com.apple.foundationdb.linear.RealVector;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+class AccessInfo {
+    @Nonnull
+    private final EntryNodeReference entryNodeReference;
+
+    @Nullable
+    private final RealVector centroid;
+
+    public AccessInfo(@Nonnull final EntryNodeReference entryNodeReference, @Nullable final RealVector centroid) {
+        this.entryNodeReference = entryNodeReference;
+        this.centroid = centroid;
+    }
+
+    @Nonnull
+    public EntryNodeReference getEntryNodeReference() {
+        return entryNodeReference;
+    }
+
+    @Nullable
+    public RealVector getCentroid() {
+        return centroid;
+    }
+
+    @Nonnull
+    public AccessInfo withNewEntryNodeReference(@Nonnull final EntryNodeReference entryNodeReference) {
+        return new AccessInfo(entryNodeReference, centroid);
+    }
+}

fdb-extensions/src/main/java/com/apple/foundationdb/async/hnsw/AggregatedVector.java

@@ -0,0 +1,67 @@
+/*
+ * AggregatedVector.java
+ *
+ * This source file is part of the FoundationDB open source project
+ *
+ * Copyright 2015-2025 Apple Inc. and the FoundationDB project authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.apple.foundationdb.async.hnsw;
+
+import com.apple.foundationdb.linear.RealVector;
+
+import javax.annotation.Nonnull;
+
+public class AggregatedVector {
+    private final int partialCount;
+    @Nonnull
+    private final RealVector partialVector;
+
+    public AggregatedVector(final int partialCount, @Nonnull final RealVector partialVector) {
+        this.partialCount = partialCount;
+        this.partialVector = partialVector;
+    }
+
+    public int getPartialCount() {
+        return partialCount;
+    }
+
+    @Nonnull
+    public RealVector getPartialVector() {
+        return partialVector;
+    }
+
+    @Override
+    public final boolean equals(final Object o) {
+        if (!(o instanceof AggregatedVector)) {
+            return false;
+        }
+
+        final AggregatedVector that = (AggregatedVector)o;
+        return partialCount == that.partialCount && partialVector.equals(that.partialVector);
+    }
+
+    @Override
+    public int hashCode() {
+        int result = partialCount;
+        result = 31 * result + partialVector.hashCode();
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        return "AggregatedVector[" + partialCount + ", " + partialVector + "]";
+    }
+}