org.teiid.query.tempdata

Class TempTableStore

java.lang.Object

org.teiid.query.tempdata.TempTableStore

public class TempTableStore
extends Object

TempTableStores are transactional, but do not act as full resource manager. This means we are effectively 1PC and don't allow any heuristic exceptions on commit. Table state snapshoting and a Synchronization are used to perform the appropriate commit/rollback actions. Full row level MVCC would be a good next step as it would remove the cost of state cloning and would allow for concurrent read/write transactions.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TempTableStore.RecursiveTableProcessor
static class	TempTableStore.TableProcessor
class	TempTableStore.TempTableSynchronization
static interface	TempTableStore.TransactionCallback
static class	TempTableStore.TransactionMode

Field Summary

Fields

Modifier and Type	Field and Description
static String	TEIID_MAX_RECURSION

Constructor Summary

Constructors

Constructor and Description
TempTableStore(String sessionID, TempTableStore.TransactionMode transactionMode)

Method Summary

Modifier and Type	Method and Description
TempMetadataStore	getMetadataStore()
TempTableStore	getParentTempTableStore()
HashMap<String,TempTableStore.TableProcessor>	getProcessors()
boolean	hasTempTable(String tempTableName, boolean checkParent)
void	removeTempTableByName(String tempTableName, CommandContext context)
void	removeTempTables()
void	setParentTempTableStore(TempTableStore parentTempTableStore)
void	setProcessors(HashMap<String,TempTableStore.TableProcessor> plans)
void	setUpdatable(String name, boolean updatable)

Methods inherited from class java.lang.Object

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

Field Detail

TEIID_MAX_RECURSION

public static final String TEIID_MAX_RECURSION

See Also:

Constant Field Values

Constructor Detail

TempTableStore

public TempTableStore(String sessionID,
                      TempTableStore.TransactionMode transactionMode)

Method Detail

setParentTempTableStore

public void setParentTempTableStore(TempTableStore parentTempTableStore)

getParentTempTableStore

public TempTableStore getParentTempTableStore()

hasTempTable

public boolean hasTempTable(String tempTableName,
                            boolean checkParent)

setProcessors

public void setProcessors(HashMap<String,TempTableStore.TableProcessor> plans)

removeTempTableByName

public void removeTempTableByName(String tempTableName,
                                  CommandContext context)
                           throws TeiidProcessingException

Throws:

TeiidProcessingException

getMetadataStore

public TempMetadataStore getMetadataStore()

removeTempTables

public void removeTempTables()
                      throws TeiidComponentException

Throws:

TeiidComponentException

setUpdatable

public void setUpdatable(String name,
                         boolean updatable)

getProcessors

public HashMap<String,TempTableStore.TableProcessor> getProcessors()