[CARBONDATA-607] Cleanup ValueCompressionHolder class and all sub-classes

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0-incubating
• Component/s: core
• Assignee: Jihong Ma
• Reporter: Jihong Ma
• Created: 07/Jan/17 16:55
• Updated: 11/Jan/17 07:36
• Resolved: 11/Jan/17 07:36

Description

Rewrite ValueCompressionHolder class as a base class for compressing or uncompressing numeric data for measurement column chunk.

refactor all sub-classes under
org.apache.carbondata.core.datastorage.store.compression.decimal.*
org.apache.carbondata.core.datastorage.store.compression.nonDecimal.*
org.apache.carbondata.core.datastorage.store.compression.none.*
org.apache.carbondata.core.datastorage.store.compression.type.*

as part of the work, also fix a performance bug to avoid creating unnecessary compression/uncompression value holder during compression or decompression.

Issue Links

• links to: GitHub Pull Request #505