get page size for all pages

Author: Neenu1995

java-bigquery/google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/TableResult.java

@@ -100,12 +100,18 @@ public String getNextPageToken() {
   @Override
   public TableResult getNextPage() {
     if (getPageNoSchema().hasNextPage()) {
+      Page<FieldValueList> nextPageNoSchema = getPageNoSchema().getNextPage();
+      long nextRows =
+          nextPageNoSchema.getValues() != null
+              ? (long) Iterables.size(nextPageNoSchema.getValues())
+              : 0L;
       return TableResult.newBuilder()
           .setSchema(getSchema())
           .setTotalRows(getTotalRows())
-          .setPageNoSchema(getPageNoSchema().getNextPage())
+          .setPageNoSchema(nextPageNoSchema)
           .setQueryId(getQueryId())
           .setJobCreationReason(getJobCreationReason())
+          .setRowsInPage(nextRows)
           .build();
     }
     return null;

java-bigquery/google-cloud-bigquery/src/test/java/com/google/cloud/bigquery/TableResultTest.java

@@ -71,7 +71,7 @@ void testNullSchema() {
     assertThat(next.getSchema()).isNull();
     assertThat(next.hasNextPage()).isFalse();
     assertThat(next.getNextPageToken()).isNull();
-    assertThat(next.getRowsInPage()).isNull();
+    assertThat(next.getRowsInPage()).isEqualTo(1L);
     assertThat(next.getValues()).containsExactly(newFieldValueList("2"));
     assertThat(next.getNextPage()).isNull();
 
@@ -103,7 +103,7 @@ void testSchema() {
     assertThat(next.getSchema()).isEqualTo(SCHEMA);
     assertThat(next.hasNextPage()).isFalse();
     assertThat(next.getNextPageToken()).isNull();
-    assertThat(next.getRowsInPage()).isNull();
+    assertThat(next.getRowsInPage()).isEqualTo(1L);
     assertThat(next.getValues())
         .containsExactly(newFieldValueList("2").withSchema(SCHEMA.getFields()));
     assertThat(next.getNextPage()).isNull();