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クラス org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer

org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancerに対する継承グラフ

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説明

The Request Load Balancer should implement the load balancing of the requests among the backend nodes.

The requests comes from the Request Controller and are sent to the Connection Managers.

作者:
Emmanuel Cecchet

Vadim Kassin

バージョン:
1.0

AbstractLoadBalancer.java の 57 行で定義されています。

Public メソッド

int getRAIDbLevel ()
void setRAIDbLevel (int raidbLevel)
int getParsingGranularity ()
void setParsingGranularity (int parsingGranularity)
abstract java.sql.ResultSet execReadRequest (SelectRequest request) throws SQLException
abstract int execWriteRequest (AbstractWriteRequest request) throws AllBackendsFailedException, SQLException
abstract ResultSet execWriteRequestWithKeys (AbstractWriteRequest request) throws AllBackendsFailedException, SQLException
abstract ResultSet execReadOnlyReadStoredProcedure (StoredProcedure proc) throws SQLException
abstract ResultSet execReadStoredProcedure (StoredProcedure proc) throws SQLException
abstract int execWriteStoredProcedure (StoredProcedure proc) throws SQLException
abstract void begin (TransactionMarkerMetaData tm) throws SQLException
abstract void commit (TransactionMarkerMetaData tm) throws AllBackendsFailedException, SQLException
abstract void rollback (TransactionMarkerMetaData tm) throws AllBackendsFailedException, SQLException
abstract void enableBackend (DatabaseBackend db, boolean writeEnabled) throws SQLException
abstract void disableBackend (DatabaseBackend db) throws SQLException
void setWeight (String name, int w) throws SQLException
abstract String getInformation ()
abstract String getXmlImpl ()
String getXml ()

Protected メソッド

 AbstractLoadBalancer (VirtualDatabase vdb, int raidbLevel, int parsingGranularity) throws SQLException
ResultSet executeStatementOnBackend (SelectRequest request, DatabaseBackend backend, Connection c) throws SQLException, BadConnectionException

Protected 変数

VirtualDatabase vdb
int raidbLevel
int parsingGranularity

Static Protected 変数

Trace logger

コンストラクタとデストラクタ

org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.AbstractLoadBalancer (  VirtualDatabase  vdb,
int  raidbLevel,
int  parsingGranularity
)  throws SQLException [protected]
 

Generic constructor that sets some member variables and checks that backends are in the disabled state

引数:
vdb The virtual database this load balancer belongs to
raidbLevel The RAIDb level of this load balancer
parsingGranularity The parsing granularity needed by this load balancer

AbstractLoadBalancer.java の 88 行で定義されています。

参照先 org.objectweb.cjdbc.controller.virtualdatabase.VirtualDatabase.acquireReadLockBackendLists(), org.objectweb.cjdbc.controller.backend.DatabaseBackend.disable(), org.objectweb.cjdbc.common.log.Trace.error(), org.objectweb.cjdbc.controller.virtualdatabase.VirtualDatabase.getBackends(), org.objectweb.cjdbc.controller.backend.DatabaseBackend.getName(), org.objectweb.cjdbc.controller.backend.DatabaseBackend.isReadEnabled, org.objectweb.cjdbc.common.log.Trace.isWarnEnabled(), org.objectweb.cjdbc.controller.backend.DatabaseBackend.isWriteEnabled, org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.raidbLevel, org.objectweb.cjdbc.controller.virtualdatabase.VirtualDatabase.releaseReadLockBackendLists(), org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.vdb, と org.objectweb.cjdbc.common.log.Trace.warn(). 

00090   {
00091     this.raidbLevel = raidbLevel;
00092     this.parsingGranularity = parsingGranularity;
00093     this.vdb = vdb;
00094     try
00095     {
00096       vdb.acquireReadLockBackendLists();
00097     }
00098     catch (InterruptedException e)
00099     {
00100       String msg = Translate.get(
00101           "loadbalancer.backendlist.acquire.readlock.failed", e);
00102       logger.error(msg);
00103       throw new SQLException(msg);
00104     }
00105     int size = vdb.getBackends().size();
00106     ArrayList backends = vdb.getBackends();
00107     for (int i = 0; i < size; i++)
00108     {
00109       DatabaseBackend backend = (DatabaseBackend) backends.get(i);
00110       if (backend.isReadEnabled() || backend.isWriteEnabled())
00111       {
00112         if (logger.isWarnEnabled())
00113           logger.warn(Translate.get(
00114               "loadbalancer.constructor.backends.not.disabled", backend
00115                   .getName()));
00116         backend.disable();
00117       }
00118     }
00119     vdb.releaseReadLockBackendLists();
00120   }

メソッド

abstract void org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.begin (  TransactionMarkerMetaData  tm  )  throws SQLException [pure virtual]
 

Begin a new transaction.

引数:
tm The transaction marker metadata
例外:
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

参照元 org.objectweb.cjdbc.controller.requestmanager.distributed.DistributedRequestManager.begin().

abstract void org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.commit (  TransactionMarkerMetaData  tm  )  throws AllBackendsFailedException, SQLException [pure virtual]
 

Commit a transaction.

引数:
tm The transaction marker metadata
例外:
AllBackendsFailedException if all backends failed to execute the request
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

abstract void org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.disableBackend (  DatabaseBackend  db  )  throws SQLException [pure virtual]
 

Disable a backend without further check. Ask the corresponding connection manager to finalize the connections if needed. This method should not be called directly but instead should access the RequestManager.disableBackeknd(...) method.

引数:
db The database backend to disable
例外:
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

参照元 org.objectweb.cjdbc.controller.loadbalancer.BackendWorkerThread.run().

abstract void org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.enableBackend (  DatabaseBackend  db,
boolean  writeEnabled
)  throws SQLException [pure virtual]
 

Enable a backend without further check. The backend is at least read enabled but could also be enabled for writes. Ask the corresponding connection manager to initialize the connections if needed.

引数:
db The database backend to enable
writeEnabled True if the backend must be enabled for writes
例外:
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

参照元 org.objectweb.cjdbc.controller.requestmanager.distributed.DistributedRequestManager.enableBackend().

abstract ResultSet org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.execReadOnlyReadStoredProcedure (  StoredProcedure  proc  )  throws SQLException [pure virtual]
 

Call a read-only stored procedure that returns a ResultSet. The stored procedure will be executed by one node only.

引数:
proc the stored procedure call
戻り値:
a java.sql.ResultSet value
例外:
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_LPRF, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_LPRF, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec_WRR, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

abstract java.sql.ResultSet org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.execReadRequest (  SelectRequest  request  )  throws SQLException [pure virtual]
 

Perform a read request. It is up to the implementation to choose to which backend node(s) this request should be sent.

引数:
request an SelectRequest
戻り値:
the corresponding java.sql.ResultSet
例外:
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_LPRF, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_LPRF, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec_WRR, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

abstract ResultSet org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.execReadStoredProcedure (  StoredProcedure  proc  )  throws SQLException [pure virtual]
 

Call a stored procedure that returns a ResultSet. This stored procedure can possibly perform writes and will therefore be cexuted by all nodes.

引数:
proc the stored procedure call
戻り値:
a java.sql.ResultSet value
例外:
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

ResultSet org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.executeStatementOnBackend (  SelectRequest  request,
DatabaseBackend  backend,
Connection  c
)  throws SQLException, BadConnectionException [protected]
 

Execute a statement on a backend. If the execution fails, the connection is checked for validity. If the connection was not valid, the query is automatically retried on a new connection.

引数:
request the request to execute
backend the backend on which the request is executed
c connection used to create the statement
戻り値:
the ResultSet
例外:
SQLException if an error occurs

AbstractLoadBalancer.java の 251 行で定義されています。

参照先 java.sql.Statement.executeQuery(), java.sql.Statement.setCursorName(), java.sql.Statement.setFetchSize(), java.sql.Statement.setMaxRows(), java.sql.Statement.setQueryTimeout(), org.objectweb.cjdbc.controller.backend.DriverCompliance.supportSetCursorName, org.objectweb.cjdbc.controller.backend.DriverCompliance.supportSetFetchSize, org.objectweb.cjdbc.controller.backend.DriverCompliance.supportSetMaxRows, と org.objectweb.cjdbc.controller.backend.DriverCompliance.supportSetQueryTimeout.

参照元 org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDB.execReadRequest(). 

00254   {
00255     ResultSet rs = null;
00256     try
00257     {
00258       backend.addPendingReadRequest(request);
00259       String sql = request.getSQL();
00260       // Rewrite the query if needed
00261       sql = backend.rewriteQuery(sql);
00262       // Execute the query
00263       Statement s = c.createStatement();
00264       DriverCompliance driverCompliance = backend.getDriverCompliance();
00265       if (driverCompliance.supportSetQueryTimeout())
00266         s.setQueryTimeout(request.getTimeout());
00267       if ((request.getCursorName() != null)
00268           && (driverCompliance.supportSetCursorName()))
00269         s.setCursorName(request.getCursorName());
00270       if ((request.getFetchSize() != 0)
00271           && driverCompliance.supportSetFetchSize())
00272         s.setFetchSize(request.getFetchSize());
00273       if ((request.getMaxRows() > 0) && driverCompliance.supportSetMaxRows())
00274         s.setMaxRows(request.getMaxRows());
00275       rs = s.executeQuery(sql);
00276     }
00277     catch (SQLException e)
00278     { // Something bad happened
00279       if (backend.isValidConnection(c))
00280         throw e; // Connection is valid, throw the exception
00281       else
00282         throw new BadConnectionException();
00283     }
00284     finally
00285     {
00286       backend.removePendingRequest(request);
00287     }
00288     return rs;
00289   }

abstract int org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.execWriteRequest (  AbstractWriteRequest  request  )  throws AllBackendsFailedException, SQLException [pure virtual]
 

Perform a write request. This request should usually be broadcasted to all nodes.

引数:
request an AbstractWriteRequest
戻り値:
number of rows affected by the request
例外:
AllBackendsFailedException if all backends failed to execute the request
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

abstract ResultSet org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.execWriteRequestWithKeys (  AbstractWriteRequest  request  )  throws AllBackendsFailedException, SQLException [pure virtual]
 

Perform a write request and return a ResultSet containing the auto generated keys.

引数:
request an AbstractWriteRequest
戻り値:
auto generated keys
例外:
AllBackendsFailedException if all backends failed to execute the request
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

abstract int org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.execWriteStoredProcedure (  StoredProcedure  proc  )  throws SQLException [pure virtual]
 

Call a stored procedure that performs an update.

引数:
proc the stored procedure call
戻り値:
number of rows affected
例外:
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

abstract String org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.getInformation (   )  [pure virtual]
 

Get information about the Request Load Balancer

戻り値:
String containing information

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB_LPRF, org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_LPRF, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_LPRF, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec_RR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec_WRR, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

int org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.getParsingGranularity (   ) 
 

Get the needed query parsing granularity.

戻り値:
needed query parsing granularity

AbstractLoadBalancer.java の 151 行で定義されています。

参照元 org.objectweb.cjdbc.controller.requestmanager.RequestManager.setLoadBalancer(). 

00152   {
00153     return parsingGranularity;
00154   }

int org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.getRAIDbLevel (   ) 
 

Returns the RAIDbLevel.

戻り値:
int the RAIDb level

AbstractLoadBalancer.java の 131 行で定義されています。

参照先 org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.raidbLevel.

参照元 org.objectweb.cjdbc.controller.requestmanager.RequestManager.assignAndCheckSchedulerLoadBalancerValidity(). 

00132   {
00133     return raidbLevel;
00134   }

String org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.getXml (   ) 
 

参照:
org.objectweb.cjdbc.common.xml.XmlComponent.getXml()

AbstractLoadBalancer.java の 385 行で定義されています。

参照先 org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.getXmlImpl(). 

00386   {
00387     StringBuffer info = new StringBuffer();
00388     info.append("<" + DatabasesXmlTags.ELT_LoadBalancer + ">");
00389     info.append(getXmlImpl());
00390     info.append("</" + DatabasesXmlTags.ELT_LoadBalancer + ">");
00391     return info.toString();
00392   }

abstract String org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.getXmlImpl (   )  [pure virtual]
 

Get information about the Request Load Balancer in xml

戻り値:
String containing information, xml formatted

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

参照元 org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.getXml().

abstract void org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.rollback (  TransactionMarkerMetaData  tm  )  throws AllBackendsFailedException, SQLException [pure virtual]
 

Rollback a transaction.

引数:
tm The transaction marker metadata
例外:
AllBackendsFailedException if all backends failed to execute the request
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.paralleldb.ParallelDB, org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBを実装しています.

void org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.setParsingGranularity (  int  parsingGranularity  ) 
 

Set the needed query parsing granularity.

引数:
parsingGranularity the granularity to set

AbstractLoadBalancer.java の 161 行で定義されています。 

00162   {
00163     this.parsingGranularity = parsingGranularity;
00164   }

void org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.setRAIDbLevel (  int  raidbLevel  ) 
 

Sets the RAIDbLevel.

引数:
raidbLevel The RAIDb level to set

AbstractLoadBalancer.java の 141 行で定義されています。 

00142   {
00143     this.raidbLevel = raidbLevel;
00144   }

void org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.setWeight (  String  name,
int  w
)  throws SQLException
 

Associate a weight to a backend identified by its logical name.

引数:
name the backend name
w the weight
例外:
SQLException if an error occurs

org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2_WRR, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec_WRR, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBで再定義されています。

AbstractLoadBalancer.java の 359 行で定義されています。 

00360   {
00361     throw new SQLException("Weight is not supported by this load balancer");
00362   }

変数

Trace org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.logger [static, protected]
 

初期値:

 Trace
                                       .getLogger("org.objectweb.cjdbc.controller.loadbalancer")

org.objectweb.cjdbc.controller.loadbalancer.raidb0.RAIDb0, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1, org.objectweb.cjdbc.controller.loadbalancer.raidb1.RAIDb1ec, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2, org.objectweb.cjdbc.controller.loadbalancer.raidb2.RAIDb2ec, と org.objectweb.cjdbc.controller.loadbalancer.singledb.SingleDBで再定義されています。

AbstractLoadBalancer.java の 76 行で定義されています。

int org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.parsingGranularity [protected]
 

AbstractLoadBalancer.java の 74 行で定義されています。

int org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.raidbLevel [protected]
 

AbstractLoadBalancer.java の 73 行で定義されています。

参照元 org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.AbstractLoadBalancer(), と org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.getRAIDbLevel().

VirtualDatabase org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.vdb [protected]
 

AbstractLoadBalancer.java の 72 行で定義されています。

参照元 org.objectweb.cjdbc.controller.loadbalancer.AbstractLoadBalancer.AbstractLoadBalancer().

このクラスの説明は次のファイルから生成されました:
CJDBCversion1.0rc6に対してWed May 5 18:02:20 2004に生成されました。 doxygen 1.3.6