com.metamatrix.common.buffer.storage.memory
Class MemoryStorageManager

java.lang.Object
  com.metamatrix.common.buffer.storage.memory.MemoryStorageManager

All Implemented Interfaces:

StorageManager

public class MemoryStorageManager
extends java.lang.Object
implements StorageManager

Field Summary

Fields inherited from interface com.metamatrix.common.buffer.StorageManager

TYPE_DATABASE, TYPE_FILE, TYPE_MEMORY, TYPE_REMOTE

Constructor Summary

MemoryStorageManager()

Method Summary

void	addBatch(TupleSourceID storageID, TupleBatch batch, java.lang.String[] types) Add a batch to the storage manager.
TupleBatch	getBatch(TupleSourceID storageID, int beginRow, java.lang.String[] types) Returns a batch of tuples, starting at row beginRow.
int	getStorageType() Get the type of storage as defined by constants.
void	initialize(java.util.Properties props) Initialize the storage manager given the specified properties.
void	removeBatch(TupleSourceID sourceID, int beginRow) Remove a batch from this storage as specified.
void	removeBatches(TupleSourceID storageID) Remove all batches for the specified tuple source.
void	shutdown() Shut down the Storage Manager.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MemoryStorageManager

public MemoryStorageManager()

Method Detail

initialize

public void initialize(java.util.Properties props)
                throws MetaMatrixComponentException

Description copied from interface: StorageManager

Initialize the storage manager given the specified properties. Properties are typically specific to the particular storage manager.

Specified by:

initialize in interface StorageManager

Throws:

MetaMatrixComponentException - indicating a non-business-related exception (such as a communication exception)

See Also:

StorageManager.initialize(Properties)

getStorageType

public int getStorageType()

Description copied from interface: StorageManager

Get the type of storage as defined by constants.

Specified by:

getStorageType in interface StorageManager

Returns:

Storage type

See Also:

StorageManager.getStorageType()

addBatch

public void addBatch(TupleSourceID storageID,
                     TupleBatch batch,
                     java.lang.String[] types)
              throws MetaMatrixComponentException

Description copied from interface: StorageManager

Add a batch to the storage manager.

Specified by:

addBatch in interface StorageManager

types - a hint to the StorageManager about the types of data in the batch

Throws:

MetaMatrixComponentException - indicating a non-business-related exception (such as a communication exception)

See Also:

StorageManager#addBatch(TupleSourceID, TupleBatch)

getBatch

public TupleBatch getBatch(TupleSourceID storageID,
                           int beginRow,
                           java.lang.String[] types)
                    throws TupleSourceNotFoundException,
                           MetaMatrixComponentException

Description copied from interface: StorageManager

Returns a batch of tuples, starting at row beginRow. The batch will only be found if the batch that was added begins at beginRow.

Specified by:

getBatch in interface StorageManager

types - a hint to the StorageManager about the types of data in the batch

Returns:

batch of tuples starting at row beginRow

Throws:

TupleSourceNotFoundException - indicating the sourceID is unknown

MetaMatrixComponentException - indicating a non-business-related exception (such as a communication exception)

See Also:

StorageManager#getBatch(TupleSourceID, int, int)

removeBatch

public void removeBatch(TupleSourceID sourceID,
                        int beginRow)
                 throws TupleSourceNotFoundException,
                        MetaMatrixComponentException

Description copied from interface: StorageManager

Remove a batch from this storage as specified. If the tuple source is unknown or the batch is unknown, a TupleSourceNotFoundException is thrown.

Specified by:

removeBatch in interface StorageManager

Throws:

TupleSourceNotFoundException - indicating the sourceID is unknown

MetaMatrixComponentException - indicating a non-business-related exception (such as a communication exception)

See Also:

com.metamatrix.common.buffer.StorageManager#removeBatch(TupleSourceID, int, int)

removeBatches

public void removeBatches(TupleSourceID storageID)
                   throws MetaMatrixComponentException

Description copied from interface: StorageManager

Remove all batches for the specified tuple source. If no batches exist, no exception is thrown.

Specified by:

removeBatches in interface StorageManager

Throws:

MetaMatrixComponentException - indicating a non-business-related exception (such as a communication exception)

See Also:

StorageManager#removeStorageArea(TupleSourceID)

shutdown

public void shutdown()

Description copied from interface: StorageManager

Shut down the Storage Manager.

Specified by:

shutdown in interface StorageManager

See Also:

StorageManager.shutdown()