klsince commented on a change in pull request #7402:
URL: https://github.com/apache/pinot/pull/7402#discussion_r703717224
##########
File path:
pinot-common/src/main/java/org/apache/pinot/common/utils/PinotDataType.java
##########
@@ -776,30 +777,70 @@ public String toString(Object value) {
// Mapping Java class type to PinotDataType, for SV and MV value separately.
// OBJECT and OBJECT_ARRAY are default type for unknown Java types.
- private static final Map<Class<?>, PinotDataType> SINGLE_VALUE_TYPE_MAP =
new HashMap<Class<?>, PinotDataType>() {{
- put(Boolean.class, BOOLEAN);
- put(Byte.class, BYTE);
- put(Character.class, CHARACTER);
- put(Short.class, SHORT);
- put(Integer.class, INTEGER);
- put(Long.class, LONG);
- put(Float.class, FLOAT);
- put(Double.class, DOUBLE);
- put(Timestamp.class, TIMESTAMP);
- put(String.class, STRING);
- put(byte[].class, BYTES);
- }};
-
- private static final Map<Class<?>, PinotDataType> MULTI_VALUE_TYPE_MAP = new
HashMap<Class<?>, PinotDataType>() {{
- put(Byte.class, BYTE_ARRAY);
- put(Character.class, CHARACTER_ARRAY);
- put(Short.class, SHORT_ARRAY);
- put(Integer.class, INTEGER_ARRAY);
- put(Long.class, LONG_ARRAY);
- put(Float.class, FLOAT_ARRAY);
- put(Double.class, DOUBLE_ARRAY);
- put(String.class, STRING_ARRAY);
- }};
+ private static final Function<Class<?>, PinotDataType>
SINGLE_VALUE_TYPE_MAPPING = memoize(cls -> {
Review comment:
why not make this anonymous func a helper method? the ClassValue is
providing the caching mechanism, but seems not very necessary here as the func
is very lightweight.
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