CompressionType

java.lang.Object
- java.lang.Enum<CompressionType>
- - org.rocksdb.CompressionType

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<CompressionType>
```
public enum CompressionType
extends java.lang.Enum<CompressionType>
```
Enum CompressionType
DB contents are stored in a set of blocks, each of which holds a sequence of key,value pairs. Each block may be compressed before being stored in a file. The following enum describes which compression method (if any) is used to compress a block.

Enum Constant Summary

Enum Constants
Enum Constant and Description
`BZLIB2_COMPRESSION`
`DISABLE_COMPRESSION_OPTION`
`LZ4_COMPRESSION`
`LZ4HC_COMPRESSION`
`NO_COMPRESSION`
`SNAPPY_COMPRESSION`
`XPRESS_COMPRESSION`
`ZLIB_COMPRESSION`
`ZSTD_COMPRESSION`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static CompressionType`	`getCompressionType(byte byteIdentifier)` Get the CompressionType enumeration value by passing the byte identifier to this method.
`static CompressionType`	`getCompressionType(java.lang.String libraryName)` Get the CompressionType enumeration value by passing the library name to this method.
`java.lang.String`	`getLibraryName()` Returns the library name of the compression type identified by the enumeration value.
`byte`	`getValue()` Returns the byte value of the enumerations value.
`static CompressionType`	`valueOf(java.lang.String name)` Returns the enum constant of this type with the specified name.
`static CompressionType[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - NO_COMPRESSION
```
public static final CompressionType NO_COMPRESSION
```
  - SNAPPY_COMPRESSION
```
public static final CompressionType SNAPPY_COMPRESSION
```
  - ZLIB_COMPRESSION
```
public static final CompressionType ZLIB_COMPRESSION
```
  - BZLIB2_COMPRESSION
```
public static final CompressionType BZLIB2_COMPRESSION
```
  - LZ4_COMPRESSION
```
public static final CompressionType LZ4_COMPRESSION
```
  - LZ4HC_COMPRESSION
```
public static final CompressionType LZ4HC_COMPRESSION
```
  - XPRESS_COMPRESSION
```
public static final CompressionType XPRESS_COMPRESSION
```
  - ZSTD_COMPRESSION
```
public static final CompressionType ZSTD_COMPRESSION
```
  - DISABLE_COMPRESSION_OPTION
```
public static final CompressionType DISABLE_COMPRESSION_OPTION
```
- Method Detail
  - values
```
public static CompressionType[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (CompressionType c : CompressionType.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static CompressionType valueOf(java.lang.String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
    
    java.lang.NullPointerException - if the argument is null
  - getCompressionType
```
public static CompressionType getCompressionType(java.lang.String libraryName)
```
    Get the CompressionType enumeration value by passing the library name to this method.
    
    If library cannot be found the enumeration value NO_COMPRESSION will be returned.
    
    Parameters:
    
    libraryName - compression library name.
    
    Returns:
    
    CompressionType instance.
  - getCompressionType
```
public static CompressionType getCompressionType(byte byteIdentifier)
```
    Get the CompressionType enumeration value by passing the byte identifier to this method.
    
    Parameters:
    
    byteIdentifier - of CompressionType.
    
    Returns:
    
    CompressionType instance.
    
    Throws:
    
    java.lang.IllegalArgumentException - If CompressionType cannot be found for the provided byteIdentifier
  - getValue
```
public byte getValue()
```
    Returns the byte value of the enumerations value.
    
    Returns:
    
    byte representation
  - getLibraryName
```
public java.lang.String getLibraryName()
```
    Returns the library name of the compression type identified by the enumeration value.
    
    Returns:
    
    library name

Enum CompressionType

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

NO_COMPRESSION

SNAPPY_COMPRESSION

ZLIB_COMPRESSION

BZLIB2_COMPRESSION

LZ4_COMPRESSION

LZ4HC_COMPRESSION

XPRESS_COMPRESSION

ZSTD_COMPRESSION

DISABLE_COMPRESSION_OPTION

Method Detail

values

valueOf

getCompressionType

getCompressionType

getValue

getLibraryName