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## org.jboss.txbridge.ba.datamgmt
Class DataManagerProvider

    java.lang.Object
      org.jboss.txbridge.ba.datamgmt.DataManagerProvider

    public class DataManagerProvider

extends java.lang.Object

This component is responsible for ensuring that a proper Data Manager is provided during execution of a service or a datamgmt action. It associates datamgmt managers with proper threads of execution.

Version:
  0.1
Author:
  Maciej P. Machulak (mmachulak@redhat.com)

Field Summary
`private static java.util.concurrent.ConcurrentMap<java.lang.Long,DataManager>` | `cmList`
`private static DataManagerProvider` | `cmp`
`private static org.apache.log4j.Logger` | `log`

Constructor Summary
`private` | `DataManagerProvider()`

Method Summary
`void` | `associateCompensationManager(java.lang.Long thread, DataManager cmp)` This method associates a datamgmt manager with a given thread of execution.
`DataManager` | `getCompensationManager(java.lang.Long thread)` This method returns the datamgmt manager object associated to a certain thread of execution.
`static DataManagerProvider` | `getSingletonInstance()` Returns the instance fo a datamgmt manager provider.
`void` | `removeCompensationManager(java.lang.Long thread)` This method removes the association of a thread and a datamgmt manager.

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

Field Detail

### log

    private static org.apache.log4j.Logger log

### cmp

    private static volatile DataManagerProvider cmp

### cmList

    private static java.util.concurrent.ConcurrentMap<java.lang.Long,DataManager> cmList

Constructor Detail

### DataManagerProvider

    private DataManagerProvider()

Method Detail

### getSingletonInstance

    public static DataManagerProvider getSingletonInstance()

  Returns the instance fo a datamgmt manager provider.

  Returns:
    the datamgmt manager.

### associateCompensationManager

    public void associateCompensationManager(java.lang.Long thread,
                                             DataManager cmp)

  This method associates a datamgmt manager with a given thread of execution.

  Parameters:
    `thread` - is the thread for which the datamgmt manager should be associated.
    `cmp` - is the datamgmt manager, which should be associated.

### getCompensationManager

    public DataManager getCompensationManager(java.lang.Long thread)

  This method returns the datamgmt manager object associated to a certain thread of execution. If there is no datamgmt manager associated to a certain thread of execution then it means the service is being executed outside the scope of the Business Activity and a dummy datamgmt manager is simply returned.

  Parameters:
    `thread` - thread ID for which the datamgmt manager should be returned.
  Returns:
    the DataManager object.

### removeCompensationManager

    public void removeCompensationManager(java.lang.Long thread)

  This method removes the association of a thread and a datamgmt manager.

  Parameters:
    `thread` - is the thread for which the associaction should be removed.

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