org.apache.lucene.codecs.uniformsplit.sharedterms

Class STBlockLine.Serializer

java.lang.Object

org.apache.lucene.codecs.uniformsplit.BlockLine.Serializer

org.apache.lucene.codecs.uniformsplit.sharedterms.STBlockLine.Serializer

All Implemented Interfaces:

Accountable

Enclosing class:

STBlockLine

public static class STBlockLine.Serializer
extends BlockLine.Serializer

Reads block lines encoded incrementally, with all fields corresponding to the term of the line.

This class extends BlockLine.Serializer, so it keeps a state of the previous term read to decode the next term.

Field Summary

Fields inherited from class org.apache.lucene.codecs.uniformsplit.BlockLine.Serializer

currentTerm

Constructor Summary

Constructors

Constructor and Description
Serializer()

Method Summary

Modifier and Type	Method and Description
static int[]	readFieldIds(DataInput termStatesInput, int numFields) Reads all the field ids in the current block line of the provided input.
static void	readFieldTermStatesMap(DataInput termStatesInput, DeltaBaseTermStateSerializer termStateSerializer, BlockHeader blockHeader, FieldInfos fieldInfos, Map<String,BlockTermState> fieldTermStatesMap) Reads all the BlockTermState of all the field in the current block line of the provided input.
static BlockTermState	readTermStateForField(int fieldId, DataInput termStatesInput, DeltaBaseTermStateSerializer termStateSerializer, BlockHeader blockHeader, FieldInfos fieldInfos, BlockTermState reuse) Reads a single BlockTermState for the provided field in the current block line of the provided input.
static void	writeLineTermStates(DataOutput termStatesOutput, STBlockLine line, DeltaBaseTermStateSerializer encoder) Writes all the BlockTermState of the provided STBlockLine to the given output.

Methods inherited from class org.apache.lucene.codecs.uniformsplit.BlockLine.Serializer

numBitsToEncode, ramBytesUsed, readBytes, readIncrementallyEncodedTerm, readLine, writeIncrementallyEncodedTerm, writeLine, writeLineTermState

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.lucene.util.Accountable

getChildResources

Constructor Detail

Serializer

public Serializer()

Method Detail

writeLineTermStates

public static void writeLineTermStates(DataOutput termStatesOutput,
                                       STBlockLine line,
                                       DeltaBaseTermStateSerializer encoder)
                                throws IOException

Writes all the BlockTermState of the provided STBlockLine to the given output.

Throws:

IOException

readTermStateForField

public static BlockTermState readTermStateForField(int fieldId,
                                                   DataInput termStatesInput,
                                                   DeltaBaseTermStateSerializer termStateSerializer,
                                                   BlockHeader blockHeader,
                                                   FieldInfos fieldInfos,
                                                   BlockTermState reuse)
                                            throws IOException

Reads a single BlockTermState for the provided field in the current block line of the provided input.

Parameters:

termStatesInput - Data input to read the BlockTermState from.

blockHeader - Current block header.

reuse - A previous BlockTermState to reuse; or null to create a new one.

Returns:

The BlockTermState corresponding to the provided field id; or null if the field does not occur in the line.

Throws:

IOException

readFieldTermStatesMap

public static void readFieldTermStatesMap(DataInput termStatesInput,
                                          DeltaBaseTermStateSerializer termStateSerializer,
                                          BlockHeader blockHeader,
                                          FieldInfos fieldInfos,
                                          Map<String,BlockTermState> fieldTermStatesMap)
                                   throws IOException

Reads all the BlockTermState of all the field in the current block line of the provided input.

Parameters:

fieldTermStatesMap - Map filled with the term states for each field. It is cleared first.

Throws:

IOException

See Also:

readTermStateForField(int, org.apache.lucene.store.DataInput, org.apache.lucene.codecs.uniformsplit.DeltaBaseTermStateSerializer, org.apache.lucene.codecs.uniformsplit.BlockHeader, org.apache.lucene.index.FieldInfos, org.apache.lucene.codecs.BlockTermState)

readFieldIds

public static int[] readFieldIds(DataInput termStatesInput,
                                 int numFields)
                          throws IOException

Reads all the field ids in the current block line of the provided input.

Throws:

IOException