Class DeflateWithPresetDictCompressionMode
- java.lang.Object
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- org.apache.lucene.codecs.compressing.CompressionMode
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- org.apache.lucene.codecs.lucene87.DeflateWithPresetDictCompressionMode
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public final class DeflateWithPresetDictCompressionMode extends CompressionMode
A compression mode that trades speed for compression ratio. Although compression and decompression might be slow, this compression mode should provide a good compression ratio. This mode might be interesting if/when your index size is much bigger than your OS cache.
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Nested Class Summary
Nested Classes Modifier and Type Class Description private static class
DeflateWithPresetDictCompressionMode.DeflateWithPresetDictCompressor
private static class
DeflateWithPresetDictCompressionMode.DeflateWithPresetDictDecompressor
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Field Summary
Fields Modifier and Type Field Description private static int
DICT_SIZE_FACTOR
private static int
NUM_SUB_BLOCKS
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Fields inherited from class org.apache.lucene.codecs.compressing.CompressionMode
FAST, FAST_DECOMPRESSION, HIGH_COMPRESSION
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Constructor Summary
Constructors Constructor Description DeflateWithPresetDictCompressionMode()
Sole constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Compressor
newCompressor()
Create a newCompressor
instance.Decompressor
newDecompressor()
Create a newDecompressor
instance.java.lang.String
toString()
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Field Detail
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NUM_SUB_BLOCKS
private static final int NUM_SUB_BLOCKS
- See Also:
- Constant Field Values
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DICT_SIZE_FACTOR
private static final int DICT_SIZE_FACTOR
- See Also:
- Constant Field Values
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Method Detail
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newCompressor
public Compressor newCompressor()
Description copied from class:CompressionMode
Create a newCompressor
instance.- Specified by:
newCompressor
in classCompressionMode
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newDecompressor
public Decompressor newDecompressor()
Description copied from class:CompressionMode
Create a newDecompressor
instance.- Specified by:
newDecompressor
in classCompressionMode
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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