org.apache.lucene.codecs.mockintblock

Class MockVariableIntBlockPostingsFormat

java.lang.Object

org.apache.lucene.codecs.PostingsFormat

org.apache.lucene.codecs.mockintblock.MockVariableIntBlockPostingsFormat

All Implemented Interfaces:

NamedSPILoader.NamedSPI

public final class MockVariableIntBlockPostingsFormat
extends PostingsFormat

A silly test codec to verify core support for variable sized int block encoders is working. The int encoder used here writes baseBlockSize ints at once, if the first int is <= 3, else 2*baseBlockSize.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MockVariableIntBlockPostingsFormat.MockIntFactory If the first value is <= 3, writes baseBlockSize vInts at once, otherwise writes 2*baseBlockSize vInts.

Field Summary

Fields inherited from class org.apache.lucene.codecs.PostingsFormat

EMPTY

Constructor Summary

Constructors

Constructor and Description
MockVariableIntBlockPostingsFormat()
MockVariableIntBlockPostingsFormat(int baseBlockSize)

Method Summary

Modifier and Type	Method and Description
FieldsConsumer	fieldsConsumer(SegmentWriteState state) Writes a new segment
FieldsProducer	fieldsProducer(SegmentReadState state) Reads a segment.
String	toString()

Methods inherited from class org.apache.lucene.codecs.PostingsFormat

availablePostingsFormats, forName, getName, reloadPostingsFormats

Methods inherited from class java.lang.Object

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

Constructor Detail

MockVariableIntBlockPostingsFormat

public MockVariableIntBlockPostingsFormat()

MockVariableIntBlockPostingsFormat

public MockVariableIntBlockPostingsFormat(int baseBlockSize)

Method Detail

toString

public String toString()

Overrides:

toString in class PostingsFormat

fieldsConsumer

public FieldsConsumer fieldsConsumer(SegmentWriteState state)
                              throws IOException

Description copied from class: PostingsFormat

Writes a new segment

Specified by:

fieldsConsumer in class PostingsFormat

Throws:

IOException

fieldsProducer

public FieldsProducer fieldsProducer(SegmentReadState state)
                              throws IOException

Description copied from class: PostingsFormat

Reads a segment. NOTE: by the time this call returns, it must hold open any files it will need to use; else, those files may be deleted. Additionally, required files may be deleted during the execution of this call before there is a chance to open them. Under these circumstances an IOException should be thrown by the implementation. IOExceptions are expected and will automatically cause a retry of the segment opening logic with the newly revised segments.

Specified by:

fieldsProducer in class PostingsFormat

Throws:

IOException