Package org.apache.lucene.codecs.blocktreeords

Class OrdsBlockTreeTermsWriter

java.lang.Object

org.apache.lucene.codecs.FieldsConsumer

org.apache.lucene.codecs.blocktreeords.OrdsBlockTreeTermsWriter

All Implemented Interfaces:

Closeable, AutoCloseable

public final class OrdsBlockTreeTermsWriter
extends FieldsConsumer

This is just like Lucene90BlockTreeTermsWriter, except it also stores a version per term, and adds a method to its TermsEnum implementation to seekExact only if the version is >= the specified version. The version is added to the terms index to avoid seeking if no term in the block has a high enough version. The term blocks file is .tiv and the terms index extension is .tipv.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_MAX_BLOCK_SIZE	Suggested default value for the maxItemsInBlock parameter to OrdsBlockTreeTermsWriter(SegmentWriteState,PostingsWriterBase,int,int).
static final int	DEFAULT_MIN_BLOCK_SIZE	Suggested default value for the minItemsInBlock parameter to OrdsBlockTreeTermsWriter(SegmentWriteState,PostingsWriterBase,int,int).
static final int	VERSION_CURRENT	Current terms format.
static final int	VERSION_START	Initial terms format.

Constructor Summary

Constructors

Constructor	Description
OrdsBlockTreeTermsWriter(SegmentWriteState state, PostingsWriterBase postingsWriter, int minItemsInBlock, int maxItemsInBlock)	Create a new writer.

Method Summary

Modifier and Type	Method	Description
void	close()
void	write(Fields fields, NormsProducer norms)

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

merge

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_MIN_BLOCK_SIZE

public static final int DEFAULT_MIN_BLOCK_SIZE

Suggested default value for the minItemsInBlock parameter to OrdsBlockTreeTermsWriter(SegmentWriteState,PostingsWriterBase,int,int).

See Also:

• Constant Field Values

DEFAULT_MAX_BLOCK_SIZE

public static final int DEFAULT_MAX_BLOCK_SIZE

Suggested default value for the maxItemsInBlock parameter to OrdsBlockTreeTermsWriter(SegmentWriteState,PostingsWriterBase,int,int).

See Also:

• Constant Field Values

VERSION_START

public static final int VERSION_START

Initial terms format.

See Also:

• Constant Field Values

VERSION_CURRENT

public static final int VERSION_CURRENT

Current terms format.

See Also:

• Constant Field Values

Constructor Details

OrdsBlockTreeTermsWriter

public OrdsBlockTreeTermsWriter(SegmentWriteState state,
 PostingsWriterBase postingsWriter,
 int minItemsInBlock,
 int maxItemsInBlock)
                         throws IOException

Create a new writer. The number of items (terms or sub-blocks) per block will aim to be between minItemsPerBlock and maxItemsPerBlock, though in some cases the blocks may be smaller than the min.

Throws:

IOException

Method Details

write

public void write(Fields fields,
 NormsProducer norms)
           throws IOException

Specified by:

write in class FieldsConsumer

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in class FieldsConsumer

Throws:

IOException