Module org.elasticsearch.server

Package org.elasticsearch.index.codec.tsdb.pipeline.numeric

Class NumericBlockEncoder

java.lang.Object

org.elasticsearch.index.codec.tsdb.pipeline.numeric.NumericBlockEncoder

public final class NumericBlockEncoder
extends Object

Per-field block encoder owning a mutable EncodingContext.

A single instance encodes all blocks for one field. The context holds per-block mutable state (stage bitmap, metadata buffer, value count) that is cleared via EncodingContext.clear() at the start of each block and reused for the next. This zero-allocation-per-block design avoids GC pressure on the encode hot path, but makes the instance NOT thread-safe: concurrent callers must each obtain their own instance via NumericEncoder.newBlockEncoder().

Method Summary

Modifier and Type	Method	Description
int	blockSize()	Returns the number of values per block.
void	encode(long[] values, int valueCount, org.apache.lucene.store.DataOutput out)	Encodes a block of values through the pipeline.

Methods inherited from class java.lang.Object

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

Method Details

encode

public void encode(long[] values,
 int valueCount,
 org.apache.lucene.store.DataOutput out)
            throws IOException

Encodes a block of values through the pipeline.

Parameters:

values - the values to encode (modified in-place by transform stages)

valueCount - the number of valid values

out - the data output to write the encoded block to

Throws:

IOException - if an I/O error occurs

blockSize

public int blockSize()

Returns the number of values per block.

Returns:

the number of values per block