Github user gparai commented on a diff in the pull request:
https://github.com/apache/drill/pull/610#discussion_r85036776
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/BooleanType.java
---
@@ -0,0 +1,67 @@
+/**
+ * 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.drill.exec.expr.fn.impl;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Enum that contains two boolean types: TRUE and FALSE.
+ * Each has numeric representation and list of allowed literals.
+ * List of literals is formed according to
+ * {@link <a
href="https://www.postgresql.org/docs/9.6/static/datatype-boolean.html";>Postgre
Documentation</a>}
+ */
+public enum BooleanType {
+ TRUE(1, Arrays.asList("t", "true", "y", "yes", "on", "1")),
+ FALSE(0, Arrays.asList("f", "false", "n", "no", "off", "0"));
+
+ private int numericValue;
+ private List<String> literals;
+
+ BooleanType(int numericValue, List<String> literals) {
+ this.numericValue = numericValue;
+ this.literals = literals;
+ }
+
+ public int getNumericValue() {
+ return numericValue;
--- End diff --
Please correct alignment here and in getLiterals()
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