com.ibm.websphere.rsadapter
Class Sybase11DataStoreHelper

java.lang.Object
  |
  +--com.ibm.websphere.rsadapter.GenericDataStoreHelper
        |
        +--com.ibm.websphere.rsadapter.SybaseDataStoreHelper
              |
              +--com.ibm.websphere.rsadapter.Sybase11DataStoreHelper
All Implemented Interfaces:
DataStoreHelper, java.io.Serializable
public class Sybase11DataStoreHelper
extends SybaseDataStoreHelper
implements java.io.Serializable

Sybase11DataStoreHelper is a DataStoreHelper implementation customized for Sybase 11.9.2. It allows for plugging in function specific to Sybase 11.9.2. When mapping a SQLException, the SQLException mappings from the SybaseDataStoreHelper are searched first, and subsequently, if no match is found, the SQLException mappings from the GenericDataStoreHelper are searched. If you have additional requirements on Sybase 11.9.2, consider subclassing this implementation.

Since:
WAS 5.0.1
See Also:
Serialized Form

Field Summary
 
Fields inherited from class com.ibm.websphere.rsadapter.GenericDataStoreHelper
EOLN, genErrorMap, resBundle
 
Fields inherited from interface com.ibm.websphere.rsadapter.DataStoreHelper
CLOUDSCAPE_HELPER, CLOUDSCAPE_NETWORK_SERVER_HELPER, CONNECTJDBC_HELPER, CUSTOM_HELPER, DATADIRECT_HELPER, DB2_390_HELPER, DB2_390_LOCAL_HELPER, DB2_400_HELPER, DB2_HELPER, DB2_UNIVERSAL_HELPER, GENERIC_HELPER, INFORMIX_HELPER, MSSQL_HELPER, ORACLE_HELPER, POTENTIAL_DEADLOCK, POTENTIAL_LOST_UPDATE, SEQUELINK_HELPER, SYBASE_HELPER, SYBASE11_HELPER, TX_REPEATABLE_READ_FORUPDATE, TX_SERIALIZABLE_FORUPDATE, UPDATE_ON_READONLY, WSCONNECTJDBC_HELPER
 
Constructor Summary
Sybase11DataStoreHelper(java.util.Properties props)
          This Sybase11DataStoreHelper constructor creates a new Sybase11DataStoreHelper based on the DataStoreHelper properties provided.
 
Method Summary
 int getIsolationLevel(com.ibm.websphere.appprofile.accessintent.AccessIntent aIntent)
          This method determines the transaction isolation level based on the specified AccessIntent.
 int getLockType(com.ibm.websphere.appprofile.accessintent.AccessIntent intent)
          This method returns a lock type constant based on the update hint value of the specified AccessIntent.
 
Methods inherited from class com.ibm.websphere.rsadapter.SybaseDataStoreHelper
doConnectionSetup, doStatementCleanup, findMappingClass, getPrintWriter, setUserDefinedMap, showLockInfo
 
Methods inherited from class com.ibm.websphere.rsadapter.GenericDataStoreHelper
calcPartitionNumber, doConnectionCleanup, getMetaData, getResultSetConcurrency, getResultSetType, getXAExceptionContents, hasLostUpdateOrDeadLockOccurred, isBatchUpdateSupportedWithAccessIntent, isConnectionError, mapException, mapException, modifyXAFlag, processGenericCredentials, processSQL, processSQL
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Sybase11DataStoreHelper

public Sybase11DataStoreHelper(java.util.Properties props)
This Sybase11DataStoreHelper constructor creates a new Sybase11DataStoreHelper based on the DataStoreHelper properties provided. The properties parameter is provided only for future extensibility and is currently unused.

Parameters:
props - DataStoreHelper properties.
Method Detail

getIsolationLevel

public int getIsolationLevel(com.ibm.websphere.appprofile.accessintent.AccessIntent aIntent)
                      throws javax.resource.ResourceException
This method determines the transaction isolation level based on the specified AccessIntent. If the AccessIntent parameter is null, a default value should be returned that is appropriate for the database backend.

For Sybase 11, java.sql.Connection.TRANSACTION_READ_COMMITTED is returned in all cases, except when the AccessIntent is AccessIntent.PESSIMISTIC_UPDATE_LOCK_HINT_EXCLUSIVE, in which case java.sql.Connection.TRANSACTION_SERIALIZABLE is returned.

Specified by:
getIsolationLevel in interface DataStoreHelper
Overrides:
getIsolationLevel in class SybaseDataStoreHelper
Returns:
A transaction isolation level appropriate for the specified AccessIntent.
Throws:
javax.resource.ResourceException - If a transaction isolation level cannot be determined from the AccessIntent.
See Also:
AccessIntent, Connection

getLockType

public int getLockType(com.ibm.websphere.appprofile.accessintent.AccessIntent intent)

This method returns a lock type constant based on the update hint value of the specified AccessIntent. The lock type is used by the persistence manager to determine which locking hints are used on a SELECT statement.

Specified by:
getLockType in interface DataStoreHelper
Overrides:
getLockType in class GenericDataStoreHelper
Parameters:
intent - An AccessIntent
Returns:
the lock type constant. Valid values are defined in com.ibm.websphere.rsadaper.WSInteractionSpec:
  • LOCKTYPE_SELECT
  • LOCKTYPE_SELECT_FOR_UPDATE
See Also:
AccessIntent, com.ibm.websphere.rsadaper.WSInteractionSpec

 

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IBM is a trademark of the IBM Corporation in the United States, other countries, or both.