GridCacheAdapter.FutureHolder (Ignite 2.17.0)

java.lang.Object
- org.apache.ignite.internal.processors.cache.GridCacheAdapter.FutureHolder

Enclosing class:

GridCacheAdapter<K,V>
```
public static class GridCacheAdapter.FutureHolder
extends Object
```
Holder for last async operation future.

Constructor Summary

Constructors
Constructor Description

FutureHolder()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`await()`	Awaits for previous async operation to be completed.
`IgniteInternalFuture<?>`	`future()`	Gets future.
`void`	`future(@Nullable IgniteInternalFuture<?> fut)`	Sets future.
`boolean`	`holdsLock()`
`void`	`lock()`	Acquires lock.
`void`	`saveFuture(IgniteInternalFuture<?> fut)`	Saves future in the holder and adds listener that will clear holder when future is finished.
`boolean`	`tryLock()`	Tries to acquire lock.
`void`	`unlock()`	Releases lock.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - FutureHolder
```
public FutureHolder()
```
- Method Detail
  - tryLock
```
public boolean tryLock()
```
    Tries to acquire lock.
    
    Returns:
    
    Whether lock was actually acquired.
  - lock
```
public void lock()
```
    Acquires lock.
  - unlock
```
public void unlock()
```
    Releases lock.
  - holdsLock
```
public boolean holdsLock()
```
    Returns:
    
    Whether lock is held by current thread.
  - future
```
public IgniteInternalFuture<?> future()
```
    Gets future.
    
    Returns:
    
    Future.
  - future
```
public void future(@Nullable
                   @Nullable IgniteInternalFuture<?> fut)
```
    Sets future.
    
    Parameters:
    
    fut - Future.
  - await
```
public void await()
```
    Awaits for previous async operation to be completed.
  - saveFuture
```
public void saveFuture(IgniteInternalFuture<?> fut)
```
    Saves future in the holder and adds listener that will clear holder when future is finished.
    
    Parameters:
    
    fut - Future to save.