com.liferay.portal.kernel.search
Interfaces 
BooleanClause
BooleanClauseOccur
BooleanQuery
BooleanQueryFactory
Document
Hits
Indexer
IndexerRegistry
IndexSearcher
IndexWriter
OpenSearch
PortalSearchEngine
Query
SearchEngine
SearchPermissionChecker
TermQuery
TermQueryFactory
Classes 
BooleanClauseOccurImpl
BooleanQueryFactoryUtil
DocumentComparator
DocumentComparatorOrderBy
DocumentImpl
DocumentSummary
Field
HitsImpl
IndexerRegistryUtil
InvokerIndexer
SearchEngineUtil
Sort
StringQueryImpl
TermQueryFactoryUtil
Exceptions 
ParseException
SearchException