| org.continuent.sequoia.controller.loadbalancer.raidb1.RAIDb1
 org.continuent.sequoia.controller.loadbalancer.raidb1.RAIDb1ec
All known Subclasses: org.continuent.sequoia.controller.loadbalancer.raidb1.RAIDb1ec_RR, org.continuent.sequoia.controller.loadbalancer.raidb1.RAIDb1ec_WRR,
| RAIDb1ec | | abstract public class RAIDb1ec extends RAIDb1 (Code) | | RAIDb-1 load balancer.
This class is an abstract call because the read requests coming from the
request manager are NOT treated here but in the subclasses. Transaction
management and write requests are broadcasted to all backends.
author:
Emmanuel Cecchet
version:
1.0 |
| nbOfConcurrentReads | | protected int nbOfConcurrentReads(Code) | | |
| RAIDb1ec | | public RAIDb1ec(VirtualDatabase vdb, WaitForCompletionPolicy waitForCompletionPolicy, ErrorCheckingPolicy errorCheckingPolicy, int nbOfConcurrentReads) throws Exception(Code) | | Creates a new RAIDb-1 Round Robin request load balancer. A new backend
worker thread is created for each backend.
Parameters:
vdb - the virtual database this load balancer belongs to
Parameters:
waitForCompletionPolicy - how many backends must complete beforereturning the result?
Parameters:
errorCheckingPolicy - policy to apply for error checking.
Parameters:
nbOfConcurrentReads - number of concurrent reads allowed
exception:
Exception - if an error occurs |
| Methods inherited from org.continuent.sequoia.controller.loadbalancer.raidb1.RAIDb1 | public void abort(TransactionMetaData tm) throws SQLException(Code)(Java Doc)
final public void begin(TransactionMetaData tm) throws SQLException(Code)(Java Doc)
public ExecuteResult callableStatementExecute(StoredProcedure proc, MetadataCache metadataCache) throws SQLException, AllBackendsFailedException(Code)(Java Doc)
public ControllerResultSet callableStatementExecuteQuery(StoredProcedure proc, MetadataCache metadataCache) throws SQLException, AllBackendsFailedException(Code)(Java Doc)
public ExecuteUpdateResult callableStatementExecuteUpdate(StoredProcedure proc) throws SQLException, AllBackendsFailedException(Code)(Java Doc)
public void closePersistentConnection(String login, long persistentConnectionId) throws SQLException(Code)(Java Doc)
public void commit(TransactionMetaData tm) throws SQLException(Code)(Java Doc)
public void disableBackend(DatabaseBackend db, boolean forceDisable) throws SQLException(Code)(Java Doc)
public synchronized void enableBackend(DatabaseBackend db, boolean writeEnabled) throws SQLException(Code)(Java Doc)
abstract public ControllerResultSet execSingleBackendReadRequest(SelectRequest request, MetadataCache metadataCache) throws SQLException(Code)(Java Doc)
protected ControllerResultSet executeRequestOnBackend(SelectRequest request, DatabaseBackend backend, MetadataCache metadataCache) throws SQLException, UnreachableBackendException(Code)(Java Doc)
protected Object executeStoredProcedureOnBackend(StoredProcedure proc, boolean isExecuteQuery, DatabaseBackend backend, MetadataCache metadataCache) throws SQLException, UnreachableBackendException(Code)(Java Doc)
public ControllerResultSet getPreparedStatementGetMetaData(AbstractRequest request) throws SQLException(Code)(Java Doc)
abstract public String getRaidb1Xml()(Code)(Java Doc)
public String getXmlImpl()(Code)(Java Doc)
public void openPersistentConnection(String login, long persistentConnectionId) throws SQLException(Code)(Java Doc)
public void releaseSavepoint(TransactionMetaData tm, String savepointName) throws SQLException(Code)(Java Doc)
public void rollback(TransactionMetaData tm) throws SQLException(Code)(Java Doc)
public void rollbackToSavepoint(TransactionMetaData tm, String savepointName) throws SQLException(Code)(Java Doc)
public void setSavepoint(TransactionMetaData tm, String savepointName) throws SQLException(Code)(Java Doc)
public ExecuteResult statementExecute(AbstractRequest request, MetadataCache metadataCache) throws SQLException, AllBackendsFailedException(Code)(Java Doc)
public ControllerResultSet statementExecuteQuery(SelectRequest request, MetadataCache metadataCache) throws SQLException, AllBackendsFailedException(Code)(Java Doc)
public ExecuteUpdateResult statementExecuteUpdate(AbstractWriteRequest request) throws AllBackendsFailedException, NoMoreBackendException, SQLException(Code)(Java Doc)
public GeneratedKeysResult statementExecuteUpdateWithKeys(AbstractWriteRequest request, MetadataCache metadataCache) throws AllBackendsFailedException, NoMoreBackendException, SQLException(Code)(Java Doc)
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