-Added methods to retrieves the non-empty domain range sizes from a fragment for a given name or dimension.

Author: DimitrisStaratzis

src/main/java/io/tiledb/java/api/FragmentInfo.java

@@ -50,6 +50,48 @@ public FragmentInfo(Context ctx, String uri, EncryptionType encryptionType, Stri
     }
   }
 
+  /**
+   * Retrieves the non-empty domain range sizes from a fragment for a given dimension index.
+   * Applicable to var-sized dimensions.
+   *
+   * @param fragmentID The fragment ID
+   * @param dimensionID The dimension name
+   * @return The non-empty domain range sizes from a fragment for a given dimension index.
+   * @throws TileDBError
+   */
+  public Pair<Long, Long> getNonEmptyDomainVarSizeFromIndex(long fragmentID, long dimensionID)
+      throws TileDBError {
+    SWIGTYPE_p_unsigned_long_long startSize = tiledb.new_ullp();
+    SWIGTYPE_p_unsigned_long_long endSize = tiledb.new_ullp();
+
+    ctx.handleError(
+        tiledb.tiledb_fragment_info_get_non_empty_domain_var_size_from_index(
+            ctx.getCtxp(), fragmentInfop, fragmentID, dimensionID, startSize, endSize));
+    return new Pair(
+        tiledb.ullp_value(startSize).longValue(), tiledb.ullp_value(endSize).longValue());
+  }
+
+  /**
+   * Retrieves the non-empty domain range sizes from a fragment for a given dimension name.
+   * Applicable to var-sized dimensions.
+   *
+   * @param fragmentID The fragment ID
+   * @param dimensionName The dimension name
+   * @return The non-empty domain range sizes from a fragment for a given dimension name
+   * @throws TileDBError
+   */
+  public Pair<Long, Long> getNonEmptyDomainVarSizeFromName(long fragmentID, String dimensionName)
+      throws TileDBError {
+    SWIGTYPE_p_unsigned_long_long startSize = tiledb.new_ullp();
+    SWIGTYPE_p_unsigned_long_long endSize = tiledb.new_ullp();
+
+    ctx.handleError(
+        tiledb.tiledb_fragment_info_get_non_empty_domain_var_size_from_name(
+            ctx.getCtxp(), fragmentInfop, fragmentID, dimensionName, startSize, endSize));
+    return new Pair(
+        tiledb.ullp_value(startSize).longValue(), tiledb.ullp_value(endSize).longValue());
+  }
+
   /**
    * Returns the number of fragments.
    *

src/test/java/io/tiledb/java/api/FragmentInfoTest.java

@@ -493,6 +493,48 @@ public void testNonEmptyDomainVar() throws Exception {
     }
   }
 
+  @Test
+  public void testNonEmptyDomainVarSize() throws Exception {
+    int testFragmentCount = 10;
+    createSparseVarDimArray();
+
+    // Write three fragments
+    for (int i = 0; i < testFragmentCount; ++i) {
+      writeSparseVarDimArray();
+    }
+
+    FragmentInfo info = new FragmentInfo(ctx, arrayURI);
+
+    long numFragments = info.getFragmentNum();
+
+    for (int i = 0; i < numFragments; ++i) {
+      Array arr = new Array(ctx, arrayURI);
+      Domain domain = arr.getSchema().getDomain();
+      for (int dim = 0; dim < domain.getNDim(); ++dim) {
+        Dimension dimension = domain.getDimension(dim);
+
+        // Test getNonEmptyDomainVarSizeFromIndex
+        Pair p = info.getNonEmptyDomainVarSizeFromIndex(i, dim);
+
+        Assert.assertEquals(
+            p.getFirst(), arr.getNonEmptyDomainVarSizeFromIndex(dim).getFirst().longValue());
+        Assert.assertEquals(
+            p.getSecond(), arr.getNonEmptyDomainVarSizeFromIndex(dim).getSecond().longValue());
+
+        // Test getNonEmptyDomainVarSizeFromName
+        p = info.getNonEmptyDomainVarSizeFromName(i, dimension.getName());
+
+        // Test getNonEmptyDomainVarSizeFromName
+        Assert.assertEquals(
+            p.getFirst(),
+            arr.getNonEmptyDomainVarSizeFromName(dimension.getName()).getFirst().longValue());
+        Assert.assertEquals(
+            p.getSecond(),
+            arr.getNonEmptyDomainVarSizeFromName(dimension.getName()).getSecond().longValue());
+      }
+    }
+  }
+
   @Test
   public void testGetCellNumVar() throws Exception {
     int testFragmentCount = 10;