Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2843#discussion_r227624952
--- Diff:
core/src/main/java/org/apache/carbondata/core/constants/CarbonCommonConstants.java
---
@@ -23,86 +23,26 @@
import org.apache.carbondata.core.util.CarbonProperty;
public final class CarbonCommonConstants {
- /**
- * surrogate value of null
- */
- public static final int DICT_VALUE_NULL = 1;
- /**
- * surrogate value of null for direct dictionary
- */
- public static final int DIRECT_DICT_VALUE_NULL = 1;
- /**
- * integer size in bytes
- */
- public static final int INT_SIZE_IN_BYTE = 4;
- /**
- * short size in bytes
- */
- public static final int SHORT_SIZE_IN_BYTE = 2;
- /**
- * DOUBLE size in bytes
- */
- public static final int DOUBLE_SIZE_IN_BYTE = 8;
- /**
- * LONG size in bytes
- */
- public static final int LONG_SIZE_IN_BYTE = 8;
- /**
- * byte to KB conversion factor
- */
- public static final int BYTE_TO_KB_CONVERSION_FACTOR = 1024;
- /**
- * BYTE_ENCODING
- */
- public static final String BYTE_ENCODING = "ISO-8859-1";
- /**
- * measure meta data file name
- */
- public static final String MEASURE_METADATA_FILE_NAME = "/msrMetaData_";
-
- /**
- * set the segment ids to query from the table
- */
- public static final String CARBON_INPUT_SEGMENTS =
"carbon.input.segments.";
-
- /**
- * key prefix for set command.
'carbon.datamap.visible.dbName.tableName.dmName = false' means
- * that the query on 'dbName.table' will not use the datamap 'dmName'
- */
- @InterfaceStability.Unstable
- public static final String CARBON_DATAMAP_VISIBLE =
"carbon.datamap.visible.";
-
- /**
- * Fetch and validate the segments.
- * Used for aggregate table load as segment validation is not required.
- */
- public static final String VALIDATE_CARBON_INPUT_SEGMENTS =
"validate.carbon.input.segments.";
+ private CarbonCommonConstants() {
+ }
/**
--- End diff --
To make this description more easier to find, suggest to use:
```
//////////////////////////////////////////////////////////////////////////////////////////
// System level property start here
//////////////////////////////////////////////////////////////////////////////////////////
// System level property is the global property for CarbonData
// application, these properties are stored in a singleton instance
// so that all processing logic in CarbonData uses the same
// property value
```
And you can write the description for Table level property and others
---
