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new eec9657 [FLINK-12253][table-common] Add a TINYINT type
eec9657 is described below
commit eec9657e20f996596956f412b06a2160d0642e4e
Author: Timo Walther <twal...@apache.org>
AuthorDate: Tue Apr 30 17:14:48 2019 +0200
[FLINK-12253][table-common] Add a TINYINT type
---
.../table/types/logical/LogicalTypeVisitor.java | 2 +
.../flink/table/types/logical/TinyIntType.java | 91 ++++++++++++++++++++++
.../apache/flink/table/types/LogicalTypesTest.java | 14 ++++
3 files changed, 107 insertions(+)
diff --git
a/flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/logical/LogicalTypeVisitor.java
b/flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/logical/LogicalTypeVisitor.java
index 2ec9ca5..7fa368e 100644
---
a/flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/logical/LogicalTypeVisitor.java
+++
b/flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/logical/LogicalTypeVisitor.java
@@ -41,5 +41,7 @@ public interface LogicalTypeVisitor<R> {
R visit(DecimalType decimalType);
+ R visit(TinyIntType tinyIntType);
+
R visit(LogicalType other);
}
diff --git
a/flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/logical/TinyIntType.java
b/flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/logical/TinyIntType.java
new file mode 100644
index 0000000..d42bcef
--- /dev/null
+++
b/flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/logical/TinyIntType.java
@@ -0,0 +1,91 @@
+/*
+ * 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.flink.table.types.logical;
+
+import org.apache.flink.annotation.PublicEvolving;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * Logical type of a 1-byte signed integer with values from -128 to 127.
+ *
+ * <p>The serialized string representation is {@code TINYINT}.
+ */
+@PublicEvolving
+public final class TinyIntType extends LogicalType {
+
+ private static final String FORMAT = "TINYINT";
+
+ private static final Set<String> NULL_OUTPUT_CONVERSION = conversionSet(
+ Byte.class.getName());
+
+ private static final Set<String> NOT_NULL_INPUT_OUTPUT_CONVERSION =
conversionSet(
+ Byte.class.getName(),
+ byte.class.getName());
+
+ private static final Class<?> DEFAULT_CONVERSION = Byte.class;
+
+ public TinyIntType(boolean isNullable) {
+ super(isNullable, LogicalTypeRoot.TINYINT);
+ }
+
+ public TinyIntType() {
+ this(true);
+ }
+
+ @Override
+ public LogicalType copy(boolean isNullable) {
+ return new TinyIntType(isNullable);
+ }
+
+ @Override
+ public String asSerializableString() {
+ return withNullability(FORMAT);
+ }
+
+ @Override
+ public boolean supportsInputConversion(Class<?> clazz) {
+ return
NOT_NULL_INPUT_OUTPUT_CONVERSION.contains(clazz.getName());
+ }
+
+ @Override
+ public boolean supportsOutputConversion(Class<?> clazz) {
+ if (isNullable()) {
+ return NULL_OUTPUT_CONVERSION.contains(clazz.getName());
+ }
+ return
NOT_NULL_INPUT_OUTPUT_CONVERSION.contains(clazz.getName());
+ }
+
+ @Override
+ public Class<?> getDefaultConversion() {
+ return DEFAULT_CONVERSION;
+ }
+
+ @Override
+ public List<LogicalType> getChildren() {
+ return Collections.emptyList();
+ }
+
+ @Override
+ public <R> R accept(LogicalTypeVisitor<R> visitor) {
+ return visitor.visit(this);
+ }
+}
diff --git
a/flink-table/flink-table-common/src/test/java/org/apache/flink/table/types/LogicalTypesTest.java
b/flink-table/flink-table-common/src/test/java/org/apache/flink/table/types/LogicalTypesTest.java
index def5d76..7bc90f0 100644
---
a/flink-table/flink-table-common/src/test/java/org/apache/flink/table/types/LogicalTypesTest.java
+++
b/flink-table/flink-table-common/src/test/java/org/apache/flink/table/types/LogicalTypesTest.java
@@ -23,6 +23,7 @@ import org.apache.flink.table.types.logical.BooleanType;
import org.apache.flink.table.types.logical.CharType;
import org.apache.flink.table.types.logical.DecimalType;
import org.apache.flink.table.types.logical.LogicalType;
+import org.apache.flink.table.types.logical.TinyIntType;
import org.apache.flink.table.types.logical.VarBinaryType;
import org.apache.flink.table.types.logical.VarCharType;
import org.apache.flink.util.InstantiationUtil;
@@ -121,6 +122,19 @@ public class LogicalTypesTest {
);
}
+ @Test
+ public void testTinyIntType() {
+ testAll(
+ new TinyIntType(),
+ "TINYINT",
+ "TINYINT",
+ new Class[]{Byte.class, byte.class},
+ new Class[]{Byte.class},
+ new LogicalType[]{},
+ new TinyIntType(false)
+ );
+ }
+
//
--------------------------------------------------------------------------------------------
private static void testAll(
