Future Plans for Root IO
• Dynamically build representations
– StreamerInfo à JavaByteCode à machine code
– Different objects depending on:
• How object was stored
• Version of object in file (schema evolution)
– Expect to have this ready October/November
• Use java.nio package in Java 1.4 (due end of
year)
– Provides more efficient IO for large binary files
– Provides support for memory mapped IO
• Expect to get very good performance