question: public static IndexData create ( TableImpl table , ByteBuffer tableBuffer , int number , JetFormat format ) throws IOException { int uniqueEntryCountOffset = ( format . OFFSET_INDEX_DEF_BLOCK + ( number * format . SIZE_INDEX_DEFINITION ) + 4 ) ; int uniqueEntryCount = tableBuffer . getInt ( uniqueEntryCountOffset ) ; return new IndexData ( table , number , uniqueEntryCount , uniqueEntryCountOffset ) ; }
target:  Creates an IndexData appropriate for the given table, using information from the given table definition buffer.