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## com.tangosol.io
Class AsyncBinaryStoreManager

    java.lang.Object
      com.tangosol.io.AsyncBinaryStoreManager

All Implemented Interfaces:
  BinaryStoreManager

    public class AsyncBinaryStoreManager

extends java.lang.Object
implements BinaryStoreManager

An AsyncBinaryStoreManager is a wrapper BinaryStoreManager that creates wrapper AsyncBinaryStore objects. An AsyncBinaryStore is a BinaryStore wrapper that performs the "O" portion of its I/O asynchronously (on a daemon thread.) Since the "O" portion is passed along to the wrapped BinaryStore on a separate thread, only read operations are blocking, thus the BinaryStore operations on a whole appear much faster. (It is somewhat analogous to a write-behind cache.)

In order for the AsyncBinaryStore objects to be used in situations that require a BinaryStoreManager, this class provides a manager for the AsyncBinaryStore objects, but to create the BinaryStore objects that will be wrapped by the AsyncBinaryStore objects, this AsyncBinaryStoreManager class has to be provided with an underlying BinaryStoreManager to wrap.

Since:
  Coherence 2.5
Author:
  cp 2004.06.18

Constructor Summary
`AsyncBinaryStoreManager(BinaryStoreManager manager)` Construct an AsyncBinaryStoreManager.
`AsyncBinaryStoreManager(BinaryStoreManager manager, int cbMax)` Construct an AsyncBinaryStoreManager.

Method Summary
`BinaryStore` | `createBinaryStore()` Factory method: Returns a new BinaryStore.
`void` | `destroyBinaryStore(BinaryStore store)` Lifecycle method: Destroy a BinaryStore previously created by this manager.
`protected BinaryStoreManager` | `getBinaryStoreManager()`
`protected java.util.Map` | `getBinaryStoreMap()`
`protected int` | `getQueuedLimit()`
`protected AsyncBinaryStore` | `instantiateAsyncBinaryStore(BinaryStore store)` Factory method: Instantiate an AsyncBinaryStore.

Constructor Detail

### AsyncBinaryStoreManager

    public AsyncBinaryStoreManager(BinaryStoreManager manager)

  Construct an AsyncBinaryStoreManager. An AsyncBinaryStoreManager creates and destroys AsyncBinaryStore objects, which wrap other BinaryStore objects to provide asynchronous write operations.

  Parameters:
    `manager` - the BinaryStoreManager to wrap

### AsyncBinaryStoreManager

    public AsyncBinaryStoreManager(BinaryStoreManager manager,
                                   int cbMax)

  Construct an AsyncBinaryStoreManager. An AsyncBinaryStoreManager creates and destroys AsyncBinaryStore objects, which wrap other BinaryStore objects to provide asynchronous write operations.

  Parameters:
    `manager` - the BinaryStoreManager to wrap
    `cbMax` - the maximum number of bytes to queue before blocking

Method Detail

### createBinaryStore

    public BinaryStore createBinaryStore()

  Factory method: Returns a new BinaryStore.

  Specified by:
    `createBinaryStore` in interface `BinaryStoreManager`
  Returns:
    a new BinaryStore object

### destroyBinaryStore

    public void destroyBinaryStore(BinaryStore store)

  Lifecycle method: Destroy a BinaryStore previously created by this manager.

  Specified by:
    `destroyBinaryStore` in interface `BinaryStoreManager`
  Parameters:
    `store` - a BinaryStore object previously created by this manager

### getBinaryStoreManager

    protected BinaryStoreManager getBinaryStoreManager()

  Returns:
    the wrapped BinaryStoreManager

### getBinaryStoreMap

    protected java.util.Map getBinaryStoreMap()

  Returns:
    the map of created AsyncBinaryStore objects and their corresponding wrapped BinaryStore objects

### getQueuedLimit

    protected int getQueuedLimit()

  Returns:
    the maximum number of pending bytes to allow to accumulate for async I/O in each of the AsyncBinaryStore objects created by this manager

### instantiateAsyncBinaryStore

    protected AsyncBinaryStore instantiateAsyncBinaryStore(BinaryStore store)

  Factory method: Instantiate an AsyncBinaryStore.

  Returns:
    a new AsyncBinaryStore

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