Interface | Description |
---|---|
Attribute |
Base interface for attributes.
|
AttributeReflector |
This interface is used to reflect contents of
AttributeSource or AttributeImpl . |
Bits |
Interface for Bitset-like structures.
|
BytesRefIterator |
A simple iterator interface for
BytesRef iteration. |
MutableBits |
Extension of Bits for live documents.
|
NamedSPILoader.NamedSPI |
Interface to support
NamedSPILoader.lookup(String) by name. |
RollingBuffer.Resettable |
Implement to reset an instance
|
Class | Description |
---|---|
ArrayUtil |
Methods for manipulating arrays.
|
AttributeImpl |
Base class for Attributes that can be added to a
AttributeSource . |
AttributeSource |
An AttributeSource contains a list of different
AttributeImpl s,
and methods to add and get them. |
AttributeSource.AttributeFactory |
An AttributeFactory creates instances of
AttributeImpl s. |
AttributeSource.State |
This class holds the state of an AttributeSource.
|
Bits.MatchAllBits |
Bits impl of the specified length with all bits set.
|
Bits.MatchNoBits |
Bits impl of the specified length with no bits set.
|
BitUtil |
A variety of high efficiency bit twiddling routines.
|
BroadWord |
Methods and constants inspired by the article
"Broadword Implementation of Rank/Select Queries" by Sebastiano Vigna, January 30, 2012:
algorithm 1:
BroadWord.bitCount(long) , count of set bits in a long
algorithm 2: BroadWord.select(long, int) , selection of a set bit in a long ,
bytewise signed smaller <8 operator: BroadWord.smallerUpTo7_8(long,long) . |
ByteBlockPool |
Class that Posting and PostingVector use to write byte
streams into shared fixed-size byte[] arrays.
|
ByteBlockPool.Allocator |
Abstract class for allocating and freeing byte
blocks.
|
ByteBlockPool.DirectAllocator |
A simple
ByteBlockPool.Allocator that never recycles. |
ByteBlockPool.DirectTrackingAllocator |
A simple
ByteBlockPool.Allocator that never recycles, but
tracks how much total RAM is in use. |
BytesRef |
Represents byte[], as a slice (offset + length) into an
existing byte[].
|
BytesRefArray |
A simple append only random-access
BytesRef array that stores full
copies of the appended bytes in a ByteBlockPool . |
BytesRefHash |
BytesRefHash is a special purpose hash-map like data-structure
optimized for BytesRef instances. |
BytesRefHash.BytesStartArray |
Manages allocation of the per-term addresses.
|
BytesRefHash.DirectBytesStartArray |
A simple
BytesRefHash.BytesStartArray that tracks
memory allocation using a private Counter
instance. |
CharsRef |
Represents char[], as a slice (offset + length) into an existing char[].
|
CloseableThreadLocal<T> |
Java's builtin ThreadLocal has a serious flaw:
it can take an arbitrarily long amount of time to
dereference the things you had stored in it, even once the
ThreadLocal instance itself is no longer referenced.
|
CollectionUtil |
Methods for manipulating (sorting) collections.
|
CommandLineUtil |
Class containing some useful methods used by command line tools
|
Constants |
Some useful constants.
|
Counter |
Simple counter class
|
DocIdBitSet |
Simple DocIdSet and DocIdSetIterator backed by a BitSet
|
DoubleBarrelLRUCache<K extends DoubleBarrelLRUCache.CloneableKey,V> |
Simple concurrent LRU cache, using a "double barrel"
approach where two ConcurrentHashMaps record entries.
|
DoubleBarrelLRUCache.CloneableKey |
Object providing clone(); the key class must subclass this.
|
FieldCacheSanityChecker |
Provides methods for sanity checking that entries in the FieldCache
are not wasteful or inconsistent.
|
FieldCacheSanityChecker.Insanity |
Simple container for a collection of related CacheEntry objects that
in conjunction with each other represent some "insane" usage of the
FieldCache.
|
FieldCacheSanityChecker.InsanityType |
An Enumeration of the different types of "insane" behavior that
may be detected in a FieldCache.
|
FilterIterator<T> |
An
Iterator implementation that filters elements with a boolean predicate. |
FixedBitSet |
BitSet of fixed length (numBits), backed by accessible (
FixedBitSet.getBits() )
long[], accessed with an int index, implementing Bits and
DocIdSet . |
FixedBitSet.FixedBitSetIterator |
A
DocIdSetIterator which iterates over set bits in a
FixedBitSet . |
GrowableByteArrayDataOutput |
A
DataOutput that can be used to build a byte[]. |
IndexableBinaryStringTools | Deprecated
Implement
TermToBytesRefAttribute and store bytes directly
instead. |
InfoStream |
Debugging API for Lucene classes such as
IndexWriter
and SegmentInfos . |
InPlaceMergeSorter |
Sorter implementation based on the merge-sort algorithm that merges
in place (no extra memory will be allocated). |
IntBlockPool |
A pool for int blocks similar to
ByteBlockPool |
IntBlockPool.Allocator |
Abstract class for allocating and freeing int
blocks.
|
IntBlockPool.DirectAllocator |
A simple
IntBlockPool.Allocator that never recycles. |
IntBlockPool.SliceReader |
A
IntBlockPool.SliceReader that can read int slices written by a IntBlockPool.SliceWriter |
IntBlockPool.SliceWriter |
A
IntBlockPool.SliceWriter that allows to write multiple integer slices into a given IntBlockPool . |
IntroSorter | |
IntsRef |
Represents int[], as a slice (offset + length) into an
existing int[].
|
IOUtils |
This class emulates the new Java 7 "Try-With-Resources" statement.
|
LongBitSet |
BitSet of fixed length (numBits), backed by accessible (
LongBitSet.getBits() )
long[], accessed with a long index. |
LongsRef |
Represents long[], as a slice (offset + length) into an
existing long[].
|
LongValues |
Abstraction over an array of longs.
|
MapOfSets<K,V> |
Helper class for keeping Lists of Objects associated with keys.
|
MathUtil |
Math static utility methods.
|
MergedIterator<T extends Comparable<T>> |
Provides a merged sorted view from several sorted iterators.
|
NamedSPILoader<S extends NamedSPILoader.NamedSPI> |
Helper class for loading named SPIs from classpath (e.g.
|
NamedThreadFactory |
A default
ThreadFactory implementation that accepts the name prefix
of the created threads as a constructor argument. |
NumericUtils |
This is a helper class to generate prefix-encoded representations for numerical values
and supplies converters to represent float/double values as sortable integers/longs.
|
NumericUtils.IntRangeBuilder | |
NumericUtils.LongRangeBuilder | |
OfflineSorter |
On-disk sorting of byte arrays.
|
OfflineSorter.BufferSize |
A bit more descriptive unit for constructors.
|
OfflineSorter.ByteSequencesReader |
Utility class to read length-prefixed byte[] entries from an input.
|
OfflineSorter.ByteSequencesWriter |
Utility class to emit length-prefixed byte[] entries to an output stream for sorting.
|
OpenBitSet |
An "open" BitSet implementation that allows direct access to the array of words
storing the bits.
|
OpenBitSetDISI |
OpenBitSet with added methods to bulk-update the bits
from a
DocIdSetIterator . |
OpenBitSetIterator |
An iterator to iterate over set bits in an OpenBitSet.
|
PagedBytes |
Represents a logical byte[] as a series of pages.
|
PagedBytes.Reader |
Provides methods to read BytesRefs from a frozen
PagedBytes.
|
PForDeltaDocIdSet |
DocIdSet implementation based on pfor-delta encoding. |
PForDeltaDocIdSet.Builder |
A builder for
PForDeltaDocIdSet . |
PrintStreamInfoStream |
InfoStream implementation over a
PrintStream
such as System.out . |
PriorityQueue<T> |
A PriorityQueue maintains a partial ordering of its elements such that the
least element can always be found in constant time.
|
QueryBuilder |
Creates queries from the
Analyzer chain. |
RamUsageEstimator |
Estimates the size (memory representation) of Java objects.
|
RecyclingByteBlockAllocator |
A
ByteBlockPool.Allocator implementation that recycles unused byte
blocks in a buffer and reuses them in subsequent calls to
RecyclingByteBlockAllocator.getByteBlock() . |
RecyclingIntBlockAllocator |
A
IntBlockPool.Allocator implementation that recycles unused int
blocks in a buffer and reuses them in subsequent calls to
RecyclingIntBlockAllocator.getIntBlock() . |
RefCount<T> |
Manages reference counting for a given object.
|
RollingBuffer<T extends RollingBuffer.Resettable> |
Acts like forever growing T[], but internally uses a
circular buffer to reuse instances of T.
|
SentinelIntSet |
A native int hash-based set where one value is reserved to mean "EMPTY" internally.
|
SetOnce<T> |
A convenient class which offers a semi-immutable object wrapper
implementation which allows one to set the value of an object exactly once,
and retrieve it many times.
|
SloppyMath |
Math functions that trade off accuracy for speed.
|
SmallFloat |
Floating point numbers smaller than 32 bits.
|
Sorter |
Base class for sorting algorithms implementations.
|
SPIClassIterator<S> |
Helper class for loading SPI classes from classpath (META-INF files).
|
StringHelper |
Methods for manipulating strings.
|
TimSorter | |
ToStringUtils |
Helper methods to ease implementing
Object.toString() . |
UnicodeUtil |
Class to encode java's UTF16 char[] into UTF8 byte[]
without always allocating a new byte[] as
String.getBytes(StandardCharsets.UTF_8) does.
|
VirtualMethod<C> |
A utility for keeping backwards compatibility on previously abstract methods
(or similar replacements).
|
WAH8DocIdSet |
DocIdSet implementation based on word-aligned hybrid encoding on
words of 8 bits. |
WAH8DocIdSet.Builder |
A builder for
WAH8DocIdSet s. |
WeakIdentityMap<K,V> |
Implements a combination of
WeakHashMap and
IdentityHashMap . |
Enum | Description |
---|---|
RamUsageEstimator.JvmFeature |
JVM diagnostic features.
|
Version |
Use by certain classes to match version compatibility
across releases of Lucene.
|
Exception | Description |
---|---|
BytesRefHash.MaxBytesLengthExceededException | |
SetOnce.AlreadySetException |
Thrown when
SetOnce.set(Object) is called more than once. |
ThreadInterruptedException |
Thrown by lucene on detecting that Thread.interrupt() had
been called.
|
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