--- /dev/null
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.arrow.adapter.jdbc.consumer;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import org.apache.arrow.vector.TinyIntVector;
+
+/**
+ * Consumer which consume tinyInt type values from {@link ResultSet}.
+ * Write the data to {@link org.apache.arrow.vector.TinyIntVector}.
+ */
+public abstract class TinyIntConsumer {
+
+ /**
+ * Creates a consumer for {@link TinyIntVector}.
+ */
+ public static JdbcConsumer<TinyIntVector> createConsumer(TinyIntVector vector, int index, boolean nullable) {
+ if (nullable) {
+ return new NullableTinyIntConsumer(vector, index);
+ } else {
+ return new NonNullableTinyIntConsumer(vector, index);
+ }
+ }
+
+ /**
+ * Nullable consumer for tiny int.
+ */
+ static class NullableTinyIntConsumer extends BaseConsumer<TinyIntVector> {
+
+ /**
+ * Instantiate a TinyIntConsumer.
+ */
+ public NullableTinyIntConsumer(TinyIntVector vector, int index) {
+ super(vector, index);
+ }
+
+ @Override
+ public void consume(ResultSet resultSet) throws SQLException {
+ byte value = resultSet.getByte(columnIndexInResultSet);
+ if (!resultSet.wasNull()) {
+ // for fixed width vectors, we have allocated enough memory proactively,
+ // so there is no need to call the setSafe method here.
+ vector.set(currentIndex, value);
+ }
+ currentIndex++;
+ }
+ }
+
+ /**
+ * Non-nullable consumer for tiny int.
+ */
+ static class NonNullableTinyIntConsumer extends BaseConsumer<TinyIntVector> {
+
+ /**
+ * Instantiate a TinyIntConsumer.
+ */
+ public NonNullableTinyIntConsumer(TinyIntVector vector, int index) {
+ super(vector, index);
+ }
+
+ @Override
+ public void consume(ResultSet resultSet) throws SQLException {
+ byte value = resultSet.getByte(columnIndexInResultSet);
+ // for fixed width vectors, we have allocated enough memory proactively,
+ // so there is no need to call the setSafe method here.
+ vector.set(currentIndex, value);
+ currentIndex++;
+ }
+ }
+}