IFilter (apache-cassandra API)

All Superinterfaces:

java.lang.AutoCloseable, SharedCloseable

All Known Implementing Classes:

AlwaysPresentFilter, BloomFilter
```
public interface IFilter
extends SharedCloseable
```

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface IFilter.FilterKey

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(IFilter.FilterKey key)`
`void`	`clear()`
`void`	`close()`
`boolean`	`isPresent(IFilter.FilterKey key)`
`long`	`offHeapSize()`	Returns the amount of memory in bytes used off heap.
`long`	`serializedSize()`
`IFilter`	`sharedCopy()`

Methods inherited from interface org.apache.cassandra.utils.concurrent.SharedCloseable
addTo, close

- Method Detail
  - add
```
void add(IFilter.FilterKey key)
```
  - isPresent
```
boolean isPresent(IFilter.FilterKey key)
```
  - clear
```
void clear()
```
  - serializedSize
```
long serializedSize()
```
  - close
```
void close()
```
    Specified by:
    
    close in interface java.lang.AutoCloseable
  - sharedCopy
```
IFilter sharedCopy()
```
    Specified by:
    
    sharedCopy in interface SharedCloseable
    
    Returns:
    
    a new instance of the object representing the same state and backed by the same underlying resources. Coordinates with the original (and other instances) when the underlying resource should be closed. Throws an exception if the shared resource has already been closed.
  - offHeapSize
```
long offHeapSize()
```
    Returns the amount of memory in bytes used off heap.
    
    Returns:
    
    the amount of memory in bytes used off heap