BinaryStore.KeySetAware (Java API Reference for Oracle® Coherence Community Edition)

All Superinterfaces:

BinaryStore, BinaryStore.SizeAware

Enclosing interface:

BinaryStore
```
public static interface BinaryStore.KeySetAware
extends BinaryStore.SizeAware
```
If a BinaryStore is aware of which keys that it stores, then it should implement this optional interface in order to allow that information to be efficiently communicated to an intelligent consumer of the BinaryStore interface.

Since:

Coherence 12.1.2

Nested Class Summary
- Nested classes/interfaces inherited from interface com.tangosol.io.BinaryStore
  BinaryStore.KeySetAware, BinaryStore.SizeAware

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`containsKey(Binary binKey)`	Return `true` iff this BinaryStore contains a mapping for the specified key.

Methods inherited from interface com.tangosol.io.BinaryStore
erase, eraseAll, keys, load, store

Methods inherited from interface com.tangosol.io.BinaryStore.SizeAware
size

- Method Detail
  - containsKey
```
boolean containsKey(Binary binKey)
```
    Return true iff this BinaryStore contains a mapping for the specified key.
    
    Parameters:
    
    binKey - key whose presence in the BinaryStore is to be tested
    
    Returns:
    
    true iff this BinaryStore contains a mapping for the specified key