IHLLMetadata (Ignite 2.17.0)

All Known Implementing Classes:

HLLMetadata
```
public interface IHLLMetadata
```
The metadata and parameters associated with a HLL.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`explicitAuto()`
`boolean`	`explicitOff()`
`HLLType`	`HLLType()`
`int`	`log2ExplicitCutoff()`
`int`	`registerCountLog2()`
`int`	`registerWidth()`
`int`	`schemaVersion()`
`boolean`	`sparseEnabled()`

- Method Detail
  - schemaVersion
```
int schemaVersion()
```
    Returns:
    
    the schema version of the HLL. This will never be null.
  - HLLType
```
HLLType HLLType()
```
    Returns:
    
    the type of the HLL. This will never be null.
  - registerCountLog2
```
int registerCountLog2()
```
    Returns:
    
    the log-base-2 of the register count parameter of the HLL. This will always be greater than or equal to 4 and less than or equal to 31.
  - registerWidth
```
int registerWidth()
```
    Returns:
    
    the register width parameter of the HLL. This will always be greater than or equal to 1 and less than or equal to 8.
  - log2ExplicitCutoff
```
int log2ExplicitCutoff()
```
    Returns:
    
    the log-base-2 of the explicit cutoff cardinality. This will always be greater than or equal to zero and less than 31, per the specification.
  - explicitOff
```
boolean explicitOff()
```
    Returns:
    
    true if the HLLType.EXPLICIT representation has been disabled. false otherwise.
  - explicitAuto
```
boolean explicitAuto()
```
    Returns:
    
    true if the HLLType.EXPLICIT representation cutoff cardinality is set to be automatically chosen, false otherwise.
  - sparseEnabled
```
boolean sparseEnabled()
```
    Returns:
    
    true if the HLLType.SPARSE representation is enabled.