521665: Name convention

rename Entity.nameMatches() to Entity.nameEquals()
rename Relationship to RelationType
rename Join to JoinType
rename Operation to ComparisonOperator

Change-Id: I728256647cccf2db718623d35a5c73283ebbe230
Signed-off-by: Florian Schmitt <florian.schmitt@atos.net>
15 files changed