Package org.apache.lucene.index

Support for testing of indexes.

The primary classes are:

• RandomIndexWriter: Randomizes the indexing experience.
• MockRandomMergePolicy: MergePolicy that makes random decisions.

Interface Summary

Interface	Description
RandomIndexWriter.TestPoint	Simple interface that is executed for each TP InfoStream component message.

Class Summary

Class	Description
AlcoholicMergePolicy	Merge policy for testing, it is like an alcoholic.
AllDeletedFilterReader	Filters the incoming reader and makes all documents appear deleted.
AssertingDirectoryReader	A DirectoryReader that wraps all its subreaders with AssertingLeafReader
AssertingLeafReader	A FilterLeafReader that can be used to apply additional checks for tests.
AssertingLeafReader.AssertingBinaryDocValues	Wraps a BinaryDocValues but with additional asserts
AssertingLeafReader.AssertingBits	Wraps a Bits but with additional asserts
AssertingLeafReader.AssertingFields	Wraps a Fields but with additional asserts
AssertingLeafReader.AssertingImpactsEnum	Wraps a ImpactsEnum with additional checks
AssertingLeafReader.AssertingNumericDocValues	Wraps a NumericDocValues but with additional asserts
AssertingLeafReader.AssertingPointValues	Wraps a SortedSetDocValues but with additional asserts
AssertingLeafReader.AssertingPostingsEnum	Wraps a docsenum with additional checks
AssertingLeafReader.AssertingSortedDocValues	Wraps a SortedDocValues but with additional asserts
AssertingLeafReader.AssertingSortedNumericDocValues	Wraps a SortedNumericDocValues but with additional asserts
AssertingLeafReader.AssertingSortedSetDocValues	Wraps a SortedSetDocValues but with additional asserts
AssertingLeafReader.AssertingTerms	Wraps a Terms but with additional asserts
BaseCompoundFormatTestCase	Abstract class to do basic tests for a compound format.
BaseCompressingDocValuesFormatTestCase	Extends BaseDocValuesFormatTestCase to add compression checks.
BaseDocValuesFormatTestCase	Abstract class to do basic tests for a docvalues format.
BaseFieldInfoFormatTestCase	Abstract class to do basic tests for fis format.
BaseLiveDocsFormatTestCase	Abstract class that performs basic testing of a codec's LiveDocsFormat.
BaseMergePolicyTestCase	Base test case for MergePolicy.
BaseMergePolicyTestCase.IOStats	Statistics about bytes written to storage.
BaseMergePolicyTestCase.MockMergeContext	Simple mock merge context for tests
BaseNormsFormatTestCase	Abstract class to do basic tests for a norms format.
BasePointsFormatTestCase	Abstract class to do basic tests for a points format.
BasePostingsFormatTestCase	Abstract class to do basic tests for a postings format.
BaseSegmentInfoFormatTestCase	Abstract class to do basic tests for si format.
BaseStoredFieldsFormatTestCase	Base class aiming at testing stored fields formats.
BaseTermVectorsFormatTestCase	Base class aiming at testing term vectors formats.
BaseTermVectorsFormatTestCase.RandomTokenStream	Produces a random TokenStream based off of provided terms.
BaseTestCheckIndex	Base class for CheckIndex tests.
FieldFilterLeafReader	A FilterLeafReader that exposes only a subset of fields from the underlying wrapped reader.
ForceMergePolicy	A MergePolicy that only returns forced merges.
IndexWriterMaxDocsChanger	Accessor to make some package protected methods in IndexWriter available for testing.
MergingCodecReader	CodecReader wrapper that performs all reads using the merging instance of the index formats.
MergingDirectoryReaderWrapper	DirectoryReader wrapper that uses the merge instances of the wrapped CodecReaders.
MismatchedDirectoryReader	A DirectoryReader that wraps all its subreaders with MismatchedLeafReader
MismatchedLeafReader	Shuffles field numbers around to try to trip bugs where field numbers are assumed to always be consistent across segments.
MockRandomMergePolicy	MergePolicy that makes random decisions for testing.
OwnCacheKeyMultiReader	A MultiReader that has its own cache key, occasionally useful for testing purposes.
PerThreadPKLookup	Utility class to do efficient primary-key (only 1 doc contains the given term) lookups by segment, re-using the enums.
PointsStackTracker	Simple utility class to track the current BKD stack based solely on calls to PointValues.IntersectVisitor.compare(byte[], byte[]).
RandomCodec	Codec that assigns per-field random postings formats.
RandomIndexWriter	Silly class that randomizes the indexing experience.
RandomPostingsTester	Helper class extracted from BasePostingsFormatTestCase to exercise a postings format.
RandomPostingsTester.FieldAndTerm	Holds one field, term and ord.
RandomPostingsTester.SeedPostings	Given the same random seed this always enumerates the same random postings
SuppressingConcurrentMergeScheduler	A ConcurrentMergeScheduler that ignores AlreadyClosedException.
ThreadedIndexingAndSearchingTestCase	Utility class that spawns multiple indexing and searching threads.

Enum Summary

Enum	Description
BaseTermVectorsFormatTestCase.Options	A combination of term vectors options.
RandomPostingsTester.Option	Which features to test.