[GitHub] [nifi] tpalfy commented on a change in pull request #4104: NIFI-7159

[GitBox <gi...@apache.org>]

tpalfy commented on a change in pull request #4104: NIFI-7159
URL: https://github.com/apache/nifi/pull/4104#discussion_r389051423
 
 

 ##########
 File path: nifi-commons/nifi-record/src/main/java/org/apache/nifi/serialization/record/type/DecimalDataType.java
 ##########
 @@ -0,0 +1,72 @@
+/*
+ * 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.nifi.serialization.record.type;
+
+import org.apache.nifi.serialization.record.DataType;
+import org.apache.nifi.serialization.record.RecordFieldType;
+
+public class DecimalDataType extends DataType {
+
+    private final int precision;
+    private final int scale;
+
+    public DecimalDataType(int precision, int scale) {
+        super(RecordFieldType.DECIMAL, null);
+        this.precision = precision;
+        this.scale = scale;
+    }
+
+    public int getPrecision() {
+        return precision;
+    }
+
+    public int getScale() {
+        return scale;
+    }
+
+    @Override
+    public RecordFieldType getFieldType() {
+        return RecordFieldType.DECIMAL;
+    }
+
+    @Override
+    public int hashCode() {
+        return 31 + 41 * getFieldType().hashCode() + 41 * Integer.hashCode(precision) * Integer.hashCode(scale); // Need to confirm this hash * hash is correct
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (obj == this) {
+            return true;
+        }
+        if (obj == null) {
+            return false;
+        }
+        if (!(obj instanceof DecimalDataType)) {
+            return false;
+        }
+
+        final DecimalDataType other = (DecimalDataType) obj;
+        return precision == other.getPrecision() && scale == other.getScale();
+    }
+
+    @Override
+    public String toString() {
+        return "DECIMAL" + Integer.toString(precision) + Integer.toString(scale);
 
 Review comment:
   Might be a good idea to add underscores (for example) so it looks like this:
   `DECIMAL_11_11`
   instead of this:
   `DECIMAL1111`
   
   Btw `Integer.toString` is redundant with the string literal plus '+' operator (makes it a bit less readable).
   

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