htsjdk.samtools.cram.structure

Class CompressorCache

java.lang.Object

htsjdk.samtools.cram.structure.CompressorCache

public class CompressorCache
extends java.lang.Object

Maintain a cache of reusable compressor instances in order to reduce the need to repeatedly instantiate them, since some, like the RANS de/compressor, allocate large numbers (~256k) of small temporary objects every time they're instantiated.

Constructor Summary

Constructors

Constructor and Description
CompressorCache()

Method Summary

Modifier and Type	Method and Description
ExternalCompressor	getCompressorForMethod(BlockCompressionMethod compressionMethod, int compressorSpecificArg) Return a compressor if its in our cache, otherwise spin one up and cache it and return it.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompressorCache

public CompressorCache()

Method Detail

getCompressorForMethod

public ExternalCompressor getCompressorForMethod(BlockCompressionMethod compressionMethod,
                                                 int compressorSpecificArg)

Return a compressor if its in our cache, otherwise spin one up and cache it and return it.

Parameters:

compressionMethod -

compressorSpecificArg -

Returns:

a cached compressor instance