Uses of Package
org.apache.lucene.util

Packages that use org.apache.lucene.util

Package	Description
org.apache.lucene.analysis	API and code to convert text into indexable/searchable tokens.
org.apache.lucene.analysis.tokenattributes	General-purpose attributes for text analysis.
org.apache.lucene.codecs	Codecs API: API for customization of the encoding and structure of the index.
org.apache.lucene.codecs.compressing	StoredFieldsFormat that allows cross-document and cross-field compression of stored fields.
org.apache.lucene.codecs.lucene3x	Codec to support Lucene 3.x indexes (readonly)
org.apache.lucene.codecs.lucene40	Lucene 4.0 file format.
org.apache.lucene.codecs.lucene41	Lucene 4.1 file format.
org.apache.lucene.codecs.lucene42	Lucene 4.2 file format.
org.apache.lucene.codecs.lucene45	Lucene 4.5 file format.
org.apache.lucene.codecs.lucene46	Lucene 4.6 file format.
org.apache.lucene.codecs.perfield	Postings format that can delegate to different formats per-field.
org.apache.lucene.document	The logical representation of a Document for indexing and searching.
org.apache.lucene.index	Code to maintain and access indices.
org.apache.lucene.search	Code to search indices.
org.apache.lucene.search.payloads	The payloads package provides Query mechanisms for finding and using payloads.
org.apache.lucene.search.similarities	This package contains the various ranking models that can be used in Lucene.
org.apache.lucene.search.spans	The calculus of spans.
org.apache.lucene.util	Some utility classes.
org.apache.lucene.util.automaton	Finite-state automaton for regular expressions.
org.apache.lucene.util.fst	Finite state transducers
org.apache.lucene.util.mutable	Comparable object wrappers
org.apache.lucene.util.packed	Packed integer arrays and streams.

Classes in org.apache.lucene.util used by org.apache.lucene.analysis

Class	Description
Attribute	Base interface for attributes.
AttributeImpl	Base class for Attributes that can be added to a AttributeSource.
AttributeReflector	This interface is used to reflect contents of AttributeSource or AttributeImpl.
AttributeSource	An AttributeSource contains a list of different AttributeImpls, and methods to add and get them.
AttributeSource.AttributeFactory	An AttributeFactory creates instances of AttributeImpls.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].

Classes in org.apache.lucene.util used by org.apache.lucene.analysis.tokenattributes

Class	Description
Attribute	Base interface for attributes.
AttributeImpl	Base class for Attributes that can be added to a AttributeSource.
AttributeReflector	This interface is used to reflect contents of AttributeSource or AttributeImpl.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].

Classes in org.apache.lucene.util used by org.apache.lucene.codecs

Class	Description
Bits	Interface for Bitset-like structures.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].
FixedBitSet	BitSet of fixed length (numBits), backed by accessible (FixedBitSet.getBits()) long[], accessed with an int index, implementing Bits and DocIdSet.
MutableBits	Extension of Bits for live documents.
NamedSPILoader.NamedSPI	Interface to support NamedSPILoader.lookup(String) by name.

Classes in org.apache.lucene.util used by org.apache.lucene.codecs.compressing

Class	Description
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].

Classes in org.apache.lucene.util used by org.apache.lucene.codecs.lucene3x

Class	Description
NamedSPILoader.NamedSPI	Interface to support NamedSPILoader.lookup(String) by name.

Classes in org.apache.lucene.util used by org.apache.lucene.codecs.lucene40

Class	Description
Bits	Interface for Bitset-like structures.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].
MutableBits	Extension of Bits for live documents.
NamedSPILoader.NamedSPI	Interface to support NamedSPILoader.lookup(String) by name.

Classes in org.apache.lucene.util used by org.apache.lucene.codecs.lucene41

Class	Description
Bits	Interface for Bitset-like structures.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].
NamedSPILoader.NamedSPI	Interface to support NamedSPILoader.lookup(String) by name.

Classes in org.apache.lucene.util used by org.apache.lucene.codecs.lucene42

Class	Description
NamedSPILoader.NamedSPI	Interface to support NamedSPILoader.lookup(String) by name.

Classes in org.apache.lucene.util used by org.apache.lucene.codecs.lucene45

Class	Description
Bits	Interface for Bitset-like structures.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].
NamedSPILoader.NamedSPI	Interface to support NamedSPILoader.lookup(String) by name.

Classes in org.apache.lucene.util used by org.apache.lucene.codecs.lucene46

Class	Description
NamedSPILoader.NamedSPI	Interface to support NamedSPILoader.lookup(String) by name.

Classes in org.apache.lucene.util used by org.apache.lucene.codecs.perfield

Class	Description
NamedSPILoader.NamedSPI	Interface to support NamedSPILoader.lookup(String) by name.

Classes in org.apache.lucene.util used by org.apache.lucene.document

Class	Description
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].

Classes in org.apache.lucene.util used by org.apache.lucene.index

Class	Description
AttributeSource	An AttributeSource contains a list of different AttributeImpls, and methods to add and get them.
Bits	Interface for Bitset-like structures.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].
BytesRefIterator	A simple iterator interface for BytesRef iteration.
InfoStream	Debugging API for Lucene classes such as IndexWriter and SegmentInfos.
MutableBits	Extension of Bits for live documents.
SetOnce	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.
Version	Use by certain classes to match version compatibility across releases of Lucene.

Classes in org.apache.lucene.util used by org.apache.lucene.search

Class	Description
Attribute	Base interface for attributes.
AttributeImpl	Base class for Attributes that can be added to a AttributeSource.
AttributeSource	An AttributeSource contains a list of different AttributeImpls, and methods to add and get them.
Bits	Interface for Bitset-like structures.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].
BytesRefIterator	A simple iterator interface for BytesRef iteration.
Counter	Simple counter class
PriorityQueue	A PriorityQueue maintains a partial ordering of its elements such that the least element can always be found in constant time.

Classes in org.apache.lucene.util used by org.apache.lucene.search.payloads

Class	Description
Bits	Interface for Bitset-like structures.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].

Classes in org.apache.lucene.util used by org.apache.lucene.search.similarities

Class	Description
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].

Classes in org.apache.lucene.util used by org.apache.lucene.search.spans

Class	Description
Bits	Interface for Bitset-like structures.

Classes in org.apache.lucene.util used by org.apache.lucene.util

Class	Description
Attribute	Base interface for attributes.
AttributeImpl	Base class for Attributes that can be added to a AttributeSource.
AttributeReflector	This interface is used to reflect contents of AttributeSource or AttributeImpl.
AttributeSource	An AttributeSource contains a list of different AttributeImpls, and methods to add and get them.
AttributeSource.AttributeFactory	An AttributeFactory creates instances of AttributeImpls.
AttributeSource.State	This class holds the state of an AttributeSource.
Bits	Interface for Bitset-like structures.
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.
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].
BytesRefHash.BytesStartArray	Manages allocation of the per-term addresses.
BytesRefIterator	A simple iterator interface for BytesRef iteration.
CharsRef	Represents char[], as a slice (offset + length) into an existing char[].
Counter	Simple counter class
DoubleBarrelLRUCache.CloneableKey	Object providing clone(); the key class must subclass this.
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.
FixedBitSet	BitSet of fixed length (numBits), backed by accessible (FixedBitSet.getBits()) long[], accessed with an int index, implementing Bits and DocIdSet.
InfoStream	Debugging API for Lucene classes such as IndexWriter and SegmentInfos.
IntBlockPool	A pool for int blocks similar to ByteBlockPool
IntBlockPool.Allocator	Abstract class for allocating and freeing int blocks.
IntsRef	Represents int[], as a slice (offset + length) into an existing int[].
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[].
NamedSPILoader.NamedSPI	Interface to support NamedSPILoader.lookup(String) by name.
NumericUtils.IntRangeBuilder	Callback for NumericUtils.splitIntRange(org.apache.lucene.util.NumericUtils.IntRangeBuilder, int, int, int).
NumericUtils.LongRangeBuilder	Callback for NumericUtils.splitLongRange(org.apache.lucene.util.NumericUtils.LongRangeBuilder, int, long, long).
OpenBitSet	An "open" BitSet implementation that allows direct access to the array of words storing the bits.
PagedBytes.PagedBytesDataInput
PagedBytes.PagedBytesDataOutput
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.
RamUsageEstimator.JvmFeature	JVM diagnostic features.
RollingBuffer.Resettable	Implement to reset an instance
SetOnce	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.
Sorter	Base class for sorting algorithms implementations.
SPIClassIterator	Helper class for loading SPI classes from classpath (META-INF files).
Version	Use by certain classes to match version compatibility across releases of Lucene.
VirtualMethod	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 WAH8DocIdSets.
WeakIdentityMap	Implements a combination of WeakHashMap and IdentityHashMap.

Classes in org.apache.lucene.util used by org.apache.lucene.util.automaton

Class	Description
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].
IntsRef	Represents int[], as a slice (offset + length) into an existing int[].

Classes in org.apache.lucene.util used by org.apache.lucene.util.fst

Class	Description
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].
CharsRef	Represents char[], as a slice (offset + length) into an existing char[].
IntsRef	Represents int[], as a slice (offset + length) into an existing int[].

Classes in org.apache.lucene.util used by org.apache.lucene.util.mutable

Class	Description
BytesRef	Represents byte[], as a slice (offset + length) into an existing byte[].

Classes in org.apache.lucene.util used by org.apache.lucene.util.packed

Class	Description
LongsRef	Represents long[], as a slice (offset + length) into an existing long[].
LongValues	Abstraction over an array of longs.