Examples of org.apache.derby.iapi.sql.conn.LanguageConnectionFactory

org.apache.derby.iapi.sql.conn.LanguageConnectionFactory
Factory interface for items specific to a connection in the language system. This is expected to be used internally, and so is not in Language.Interface.
This Factory provides pointers to other language factories; the LanguageConnectionContext holds more dynamic information, such as prepared statements and whether a commit has occurred or not.
This Factory is for internal items used throughout language during a connection. Things that users need for the Database API are in LanguageFactory in Language.Interface.
This factory returns (and thus starts) all the other per-database language factories. So there might someday be properties as to which ones to start (attributes, say, like level of optimization). If the request is relative to a specific connection, the connection is passed in. Otherwise, they are assumed to be database-wide services. @see org.apache.derby.iapi.sql.LanguageFactory @author ames

        getBuiltinSystemSchemas();


    // REMIND: actually, we're supposed to get the DataValueFactory
    // out of the connection context...this is a bit of a shortcut.
    // We get the DataValueFactory early in order to help bootstrap the system catalogs.
    LanguageConnectionFactory langConnFactory = (LanguageConnectionFactory) Monitor.bootServiceModule(
      create, this, LanguageConnectionFactory.MODULE, startParams);


    dvf = langConnFactory.getDataValueFactory();
    exFactory = (ExecutionFactory) Monitor.bootServiceModule(
                            create, this,
                            ExecutionFactory.MODULE,
                            startParams);

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  {
    ContextManager cm = lcc.getContextManager();
    DependencyManager dm;
    ProviderInfo[] providerInfo;


    LanguageConnectionFactory  lcf = lcc.getLanguageConnectionFactory();


    DataDictionary dd = getDataDictionary();




    /*
    ** If we are a trigger, then we have to go ahead
    ** and locate the trigger's table descriptor and
    ** push it on the lcc.  This is expensive, but
    ** pretty atypical since trigger actions aren't
    ** likely to be invalidated too often.  Also, when
    ** possible, we already have the triggerTable.
    */
    if (type == SPS_TYPE_TRIGGER && triggerTable == null)
    {
      String uuidStr = name.substring(49);
      triggerTable = dd.getTableDescriptor(recreateUUID(uuidStr));
      if (SanityManager.DEBUG)
      {
        if (triggerTable == null)
        {
          SanityManager.THROWASSERT("couldn't find trigger table for trigger sps "+name);
        }
      }
    }


    if (triggerTable != null)
    {
      lcc.pushTriggerTable(triggerTable);
    }


    // stored statements always stored as unicode.
    Statement       stmt = lcf.getStatement(dd.getSchemaDescriptor(compSchemaId, null), text, true);


    try
    {
      preparedStatement = (ExecPreparedStatement) stmt.prepareStorable(
                lcc,

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    TransactionController       tc
  )
    throws StandardException
  {
    ContextManager cm = lcc.getContextManager();
    LanguageConnectionFactory  lcf = lcc.getLanguageConnectionFactory();


    DataDictionary dd = getDataDictionary();




    /*
    ** If we are a trigger, then we have to go ahead
    ** and locate the trigger's table descriptor and
    ** push it on the lcc.  This is expensive, but
    ** pretty atypical since trigger actions aren't
    ** likely to be invalidated too often.  Also, when
    ** possible, we already have the triggerTable.
    */
    if (type == SPS_TYPE_TRIGGER && triggerTable == null)
    {
            // 49 because name consists of (see CreateTriggerConstantAction):
            // TRIGGER<ACTN|WHEN>_<UUID:36>_<UUID:36>
      String uuidStr = name.substring(49);
      triggerTable = dd.getTableDescriptor(recreateUUID(uuidStr));
      if (SanityManager.DEBUG)
      {
        if (triggerTable == null)
        {
          SanityManager.THROWASSERT("couldn't find trigger table for trigger sps "+name);
        }
      }
    }


    if (triggerTable != null)
    {
      lcc.pushTriggerTable(triggerTable);
    }


    // stored statements always stored as unicode.
    Statement       stmt = lcf.getStatement(dd.getSchemaDescriptor(compSchemaId, null), text, true);


    try
    {
      preparedStatement = (ExecPreparedStatement) stmt.prepareStorable(
                lcc,

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        getBuiltinSystemSchemas();


    // REMIND: actually, we're supposed to get the DataValueFactory
    // out of the connection context...this is a bit of a shortcut.
    // We get the DataValueFactory early in order to help bootstrap the system catalogs.
    LanguageConnectionFactory langConnFactory = (LanguageConnectionFactory) Monitor.bootServiceModule(
      create, this, LanguageConnectionFactory.MODULE, startParams);


    dvf = langConnFactory.getDataValueFactory();
    exFactory = (ExecutionFactory) Monitor.bootServiceModule(
                            create, this,
                            ExecutionFactory.MODULE,
                            startParams);

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        getBuiltinSystemSchemas();


    // REMIND: actually, we're supposed to get the DataValueFactory
    // out of the connection context...this is a bit of a shortcut.
    // We get the DataValueFactory early in order to help bootstrap the system catalogs.
    LanguageConnectionFactory langConnFactory = (LanguageConnectionFactory) Monitor.bootServiceModule(
      create, this, LanguageConnectionFactory.MODULE, startParams);


    dvf = langConnFactory.getDataValueFactory();
    exFactory = (ExecutionFactory) Monitor.bootServiceModule(
                            create, this,
                            ExecutionFactory.MODULE,
                            startParams);

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      if (!initialized)
      {
        LanguageConnectionContext lcc = ConnectionUtil.getCurrentLCC();


        tc = lcc.getTransactionExecute();
        LanguageConnectionFactory lcf = lcc.getLanguageConnectionFactory();
        LockFactory lf = lcf.getAccessFactory().getLockFactory();
        lockTable = lf.makeVirtualLockTable();
        initialized = true;
        tabInfo = new TableNameInfo(lcc, true);
      }

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  {
    ContextManager cm = lcc.getContextManager();
    DependencyManager dm;
    ProviderInfo[] providerInfo;


    LanguageConnectionFactory  lcf = lcc.getLanguageConnectionFactory();


    DataDictionary dd = getDataDictionary();




    /*
    ** If we are a trigger, then we have to go ahead
    ** and locate the trigger's table descriptor and
    ** push it on the lcc.  This is expensive, but
    ** pretty atypical since trigger actions aren't
    ** likely to be invalidated too often.  Also, when
    ** possible, we already have the triggerTable.
    */
    if (type == SPS_TYPE_TRIGGER && triggerTable == null)
    {
      String uuidStr = name.substring(49);
      triggerTable = dd.getTableDescriptor(recreateUUID(uuidStr));
      if (SanityManager.DEBUG)
      {
        if (triggerTable == null)
        {
          SanityManager.THROWASSERT("couldn't find trigger table for trigger sps "+name);
        }
      }
    }


    if (triggerTable != null)
    {
      lcc.pushTriggerTable(triggerTable);
    }


    // stored statements always stored as unicode.
    Statement       stmt = lcf.getStatement(dd.getSchemaDescriptor(compSchemaId, null), text, true);


    try
    {
      preparedStatement = (ExecPreparedStatement) stmt.prepareStorable(
                lcc,

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              DataDictionary dd = getDataDictionary();
              SchemaDescriptor compSchema;
              compSchema = dd.getSchemaDescriptor(vd.getCompSchemaId(), null);
              CompilerContext newCC = lcc.pushCompilerContext(compSchema);
              Parser  pa = newCC.getParser();
              LanguageConnectionFactory  lcf = lcc.getLanguageConnectionFactory();


              // Since this is always nested inside another SQL
              // statement, so topLevel flag should be false
              CreateViewNode cvn = (CreateViewNode)pa.parseStatement(
                        vd.getViewText());

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       @exception StandardException Thrown if module cannot be booted.
   *
   */
  public void boot(boolean create, Properties startParams) throws StandardException 
  {    
    LanguageConnectionFactory lcf = (LanguageConnectionFactory)  Monitor.findServiceModule(this, LanguageConnectionFactory.MODULE);
    PropertyFactory pf = lcf.getPropertyFactory();
    if (pf != null)
      pf.addPropertySetNotification(new LanguageDbPropertySetter());


    emptySet = new GenericParameterValueSet(null, 0, false);
  }

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{


  public static AccessFactory getAccessFactory() throws SQLException
  {
    LanguageConnectionContext lcc = ConnectionUtil.getCurrentLCC();
    LanguageConnectionFactory lcf = lcc.getLanguageConnectionFactory();
    return (AccessFactory)lcf.getAccessFactory();
  }

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