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Java Source Code / Java Documentation » Database ORM » MMBase » org.mmbase.module.database   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.mmbase.module.database.ConnectionWrapper       org.mmbase.module.database.MultiConnectionImplementation MultiConnectionImplementation public class MultiConnectionImplementation extends ConnectionWrapper implements MultiConnection(Code) MultiConnection is a replacement class for Connection it provides you a multiplexed and reuseable connections from the connection pool. The main function of this class is to 'log' (keep) the last sql statement passed to it. Another function is to keep state (i.e. notifying that it is busy), and to make itself available again to teh connectionpool once it is finished (closed). author:    vpro author:    Pierre van Rooden version:    $Id: MultiConnectionImplementation.java,v 1.2 2007/12/06 08:05:51 michiel Exp $ since:    MMBase-1.9 (as 'MultiConnection' in < 1.9) Field Summary final public static  int CON_BUSY      final public static  int CON_FAILED      final public static  int CON_FINISHED      final public static  int CON_UNUSED       String lastSql       MultiPool parent      public static  long queries       Exception stackTrace      public  int state      Constructor Summary public   MultiConnectionImplementation(MultiPool parent, Connection con)      Method Summary public  boolean checkAfterException()      Tries to fix the this connection, if it proves to be broken. public  boolean checkSQLError(Exception e)      public  void claim()      public  void close()      public  Statement createStatement()      public  Statement createStatement(int resultSetType, int resultSetConcurrency)      public  Statement createStatement(int type, int concurrency, int holdability)      public  String getLastSQL()      public  MultiPool getParent()      public  Connection getRealConnection()      Return the underlying real connection. public  Exception getStackTrace()      public  int getStartTime()      Returns the moment on which the last SQL statement was started in seconds after 1970. public  long getStartTimeMillis()      Returns the moment on which the last SQL statement was started in milliseconds after 1970. public  String getStateString()      public  int getUsage()      public  void realclose()      public  void release()      public  void resetUsage()      public  void setAutoCommit(boolean enableAutoCommit)      If "autoCommit" is true, then all subsequent SQL statements will be executed and committed as individual transactions. public  void setLastSQL(String sql)      public  String toString()      public  void wrap(Connection con)      Field Detail CON_BUSY final public static int CON_BUSY(Code) CON_FAILED final public static int CON_FAILED(Code) CON_FINISHED final public static int CON_FINISHED(Code) CON_UNUSED final public static int CON_UNUSED(Code) lastSql String lastSql(Code) parent MultiPool parent(Code) queries public static long queries(Code) stackTrace Exception stackTrace(Code) state public int state(Code) Constructor Detail MultiConnectionImplementation public MultiConnectionImplementation(MultiPool parent, Connection con)(Code) since:    MMBase-1.7 Method Detail checkAfterException public boolean checkAfterException() throws SQLException(Code) Tries to fix the this connection, if it proves to be broken. It is supposed to be broken if the query "SELECT 1 FROM checkSQLError public boolean checkSQLError(Exception e)(Code) claim public void claim()(Code) close public void close() throws SQLException(Code) Close connections createStatement public Statement createStatement() throws SQLException(Code) createStatement returns an SQL Statement object createStatement public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException(Code) createStatement returns an SQL Statement object createStatement public Statement createStatement(int type, int concurrency, int holdability) throws SQLException(Code) since:    MMBase 1.5, JDBC 1.4 getLastSQL public String getLastSQL()(Code) getParent public MultiPool getParent()(Code) getRealConnection public Connection getRealConnection()(Code) Return the underlying real connection. NOTE: use with extreme caution! MMBase is supposed to look after it's own connections. This method is public only for the reason that specific database implementations need access to this connection in order to safely clear them before they can be put back in the connection pool. #unwrap(Connection.class) getStackTrace public Exception getStackTrace()(Code) getStartTime public int getStartTime()(Code) Returns the moment on which the last SQL statement was started in seconds after 1970. getStartTimeMillis public long getStartTimeMillis()(Code) Returns the moment on which the last SQL statement was started in milliseconds after 1970. getStateString public String getStateString()(Code) getUsage public int getUsage()(Code) realclose public void realclose() throws SQLException(Code) Close connections release public void release()(Code) resetUsage public void resetUsage()(Code) since:    MMBase-1.8 setAutoCommit public void setAutoCommit(boolean enableAutoCommit) throws SQLException(Code) If "autoCommit" is true, then all subsequent SQL statements will be executed and committed as individual transactions. Otherwise (if "autoCommit" is false) then subsequent SQL statements will all be part of the same transaction , which must be explicitly committed with either a "commit" or "rollback" call. By default new connections are initialized with autoCommit "true". setLastSQL public void setLastSQL(String sql)(Code) toString public String toString()(Code) wrap public void wrap(Connection con)(Code) Fields inherited from org.mmbase.module.database.ConnectionWrapper protected Connection con(Code)(Java Doc) Methods inherited from org.mmbase.module.database.ConnectionWrapper public void clearWarnings() throws SQLException(Code)(Java Doc) public void close() throws SQLException(Code)(Java Doc) public void commit() throws SQLException(Code)(Java Doc) public Array createArrayOf(String typeName, Object[] elements) throws SQLException(Code)(Java Doc) public Statement createStatement() throws SQLException(Code)(Java Doc) public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException(Code)(Java Doc) public Statement createStatement(int type, int concurrency, int holdability) throws SQLException(Code)(Java Doc) public Struct createStruct(String typeName, Object[] attributes) throws SQLException(Code)(Java Doc) public boolean getAutoCommit() throws SQLException(Code)(Java Doc) public String getCatalog() throws SQLException(Code)(Java Doc) public String getClientInfo(String name) throws SQLException(Code)(Java Doc) public Properties getClientInfo() throws SQLException(Code)(Java Doc) public int getHoldability() throws SQLException(Code)(Java Doc) public DatabaseMetaData getMetaData() throws SQLException(Code)(Java Doc) public int getTransactionIsolation() throws SQLException(Code)(Java Doc) public Map getTypeMap() throws SQLException(Code)(Java Doc) public SQLWarning getWarnings() throws SQLException(Code)(Java Doc) public boolean isClosed() throws SQLException(Code)(Java Doc) public boolean isReadOnly() throws SQLException(Code)(Java Doc) public boolean isValid(int i) throws SQLException(Code)(Java Doc) public boolean isWrapperFor(Class iface)(Code)(Java Doc) public String nativeSQL(String query) throws SQLException(Code)(Java Doc) public CallableStatement prepareCall(String sql) throws SQLException(Code)(Java Doc) public CallableStatement prepareCall(String sql, int i, int y) throws SQLException(Code)(Java Doc) public CallableStatement prepareCall(String sql, int type, int concurrency, int holdability) throws SQLException(Code)(Java Doc) public PreparedStatement prepareStatement(String sql) throws SQLException(Code)(Java Doc) public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException(Code)(Java Doc) public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException(Code)(Java Doc) public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException(Code)(Java Doc) public PreparedStatement prepareStatement(String sql, int type, int concurrency, int holdability) throws SQLException(Code)(Java Doc) public PreparedStatement prepareStatement(String sql, int i, int y) throws SQLException(Code)(Java Doc) public void releaseSavepoint(Savepoint savepoint) throws SQLException(Code)(Java Doc) public void rollback() throws SQLException(Code)(Java Doc) public void rollback(Savepoint savepoint) throws SQLException(Code)(Java Doc) public void setAutoCommit(boolean enableAutoCommit) throws SQLException(Code)(Java Doc) public void setCatalog(String catalog) throws SQLException(Code)(Java Doc) public void setHoldability(int holdability) throws SQLException(Code)(Java Doc) protected void setLastSQL(String sql)(Code)(Java Doc) public void setReadOnly(boolean readOnly) throws SQLException(Code)(Java Doc) public Savepoint setSavepoint() throws SQLException(Code)(Java Doc) public Savepoint setSavepoint(String name) throws SQLException(Code)(Java Doc) public void setTransactionIsolation(int level) throws SQLException(Code)(Java Doc) public void setTypeMap(Map mp) throws SQLException(Code)(Java Doc) public T unwrap(Class<T> iface)(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)