small corrections in refactored examples
ValueComparator uses ascending flag, tests
Add GenericTypeComparator
Created new SortedGrouping to move the group order from the Grouping
Minor changes for SortedGrouping
Updated JavaDocs of ReduceFunction
Minor improvements in comparator tests
Introduction of a Writable type and tests
Improved exception message in WritableTypeInfo.
Fix combiner for group reduce.
implemented infrastructure for string style annotations
added semanticpropertyutilities
implemented parsing of the strings in SemanticPropUtil
implemented semanticPropUtils class, added compatibility to operators
Added Support for Wildcards. The following is now possible "*" for all fields constant and "1->*" when the first field is forwarded to all output fields.
Filter UDFs always considers all fields as constants
Fix group reduce compilation test
Merged and adjusted semantic annotations
Removed combine methods from CoGroup function and some minor improvements.
Improved Java examples