org.apache.spark.sql.sources
Interfaces 
CatalystScan
CreatableRelationProvider
HadoopFsRelationProvider
InsertableRelation
PrunedFilteredScan
PrunedScan
RelationProvider
SchemaRelationProvider
TableScan
Classes 
And
BaseRelation
EqualTo
Filter
GreaterThan
GreaterThanOrEqual
HadoopFsRelation
In
IsNotNull
IsNull
LessThan
LessThanOrEqual
Not
Or
OutputWriter
OutputWriterFactory
StringContains
StringEndsWith
StringStartsWith