Package org.apache.derby.iapi.sql.conn

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

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            checkNotOnInsertRow();

            setupContextStack();
           
            LanguageConnectionContext lcc = getEmbedConnection().getLanguageConnection();
            StatementContext statementContext = null;
           
            //now construct the delete where current of sql
            try {
                StringBuffer deleteWhereCurrentOfSQL = new StringBuffer("DELETE FROM ");
                CursorActivation activation = lcc.lookupCursorActivation(getCursorName());
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           * error. (Cache the LanguageConnectionContext)
           */
          LanguageConnectionContext lcc = getEmbedConnection()
              .getLanguageConnection();
                    // No timeout for this operation (use 0)
          StatementContext statementContext =
                        lcc.pushStatementContext(isAtomic,
             concurrencyOfThisResultSet==JDBC20Translation.CONCUR_READ_ONLY,
             getSQLText(),
                                                 getParameterValueSet(),
                                                 false, 0L);
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                         boolean sync,
                         int commitflag,
                         boolean requestedByUser)
     throws StandardException
  {
    StatementContext statementContext = getStatementContext();
    if (requestedByUser  &&
      (statementContext != null) &&
      statementContext.inUse() &&
      statementContext.isAtomic())
    {
      throw StandardException.newException(SQLState.LANG_NO_COMMIT_IN_NESTED_CONNECTION);
    }

    // Log commit to error log, if appropriate
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    *
   * @exception StandardException thrown on failure
   */
  private void doRollback(boolean xa, boolean requestedByUser) throws StandardException
  {
    StatementContext statementContext = getStatementContext();
    if (requestedByUser &&
      (statementContext != null) &&
      statementContext.inUse() &&
      statementContext.isAtomic())
    {
      throw StandardException.newException(SQLState.LANG_NO_ROLLBACK_IN_NESTED_CONNECTION);
    }

    // Log rollback to error log, if appropriate
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    cc.setInUse(true);

    // Save off the current isolation level on entry so that it gets restored
    cc.setEntryIsolationLevel( getCurrentIsolationLevel());

    StatementContext sc = getStatementContext();
    if (sc.getSystemCode())
      cc.setReliability(CompilerContext.INTERNAL_SQL_LEGAL);

    /*
     * Set the compilation schema when its UUID is available.
     * i.e.:  Schema may not have been physically created yet, so
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    int          parentStatementDepth = statementDepth;
    boolean        inTrigger = false;
    boolean        parentIsAtomic = false;

    // by default, assume we are going to use the outermost statement context
    StatementContext  statementContext = statementContexts[0];

    /*
    ** If we haven't allocated any statement contexts yet, allocate
    ** the outermost stmt context now and push it.
    */
    if (statementContext == null)
    {
      statementContext = statementContexts[0] = new GenericStatementContext(this);
    }
    else if (statementDepth > 0)
    {
      StatementContext  parentStatementContext;
      /*
      ** We also cache a 2nd statement context, though we still
      ** push and pop it. Note, new contexts are automatically pushed.
      */
      if (statementDepth == 1)
      {
        statementContext = statementContexts[1];

        if (statementContext == null)
          statementContext = statementContexts[1] = new GenericStatementContext(this);
        else
          statementContext.pushMe();

        parentStatementContext = statementContexts[0];
      }
      else
      {
        parentStatementContext = getStatementContext();
        statementContext = new GenericStatementContext(this);
      }

      inTrigger = parentStatementContext.inTrigger() || (outermostTrigger == parentStatementDepth);
      parentIsAtomic = parentStatementContext.isAtomic();
      statementContext.setSQLAllowed(parentStatementContext.getSQLAllowed(), false);
      if (parentStatementContext.getSystemCode())
        statementContext.setSystemCode();
    }

    incrementStatementDepth();

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  /**
   * @see LanguageConnectionContext#setIsolationLevel
   */
  public void setIsolationLevel(int isolationLevel) throws StandardException
  {
    StatementContext stmtCtxt = getStatementContext();
    if (stmtCtxt!= null && stmtCtxt.inTrigger())
      throw StandardException.newException(SQLState.LANG_NO_XACT_IN_TRIGGER, getTriggerExecutionContext().toString());

    // find if there are any held cursors from previous isolation level.
    // if yes, then throw an exception that isolation change not allowed until
    // the held cursors are closed.
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     */
  public void checkCancellationFlag()
        throws
            StandardException
  {
        StatementContext localStatementContext = getLanguageConnectionContext().getStatementContext();           
        if (localStatementContext == null) {
            return;
        }

        if (localStatementContext.isCancelled()) {
            throw StandardException.newException(SQLState.LANG_STATEMENT_CANCELLED_OR_TIMED_OUT);
        }
    }
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    {
      if (! isTopResultSet)
      {
        /* This is simply for RunTimeStats */
        /* We first need to get the subquery tracking array via the StatementContext */
        StatementContext sc = activation.getLanguageConnectionContext().getStatementContext();
        subqueryTrackingArray = sc.getSubqueryTrackingArray();
      }
      nextTime += getElapsedMillis(beginTime);
    }
      return result;
  }
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        /* Push and pop a StatementContext around a next call
         * so that the ResultSet will get correctly closed down
         * on an error.
         * (Cache the LanguageConnectionContext)
         */
                StatementContext statementContext =
                    lcc.pushStatementContext(isAtomic,
               concurrencyOfThisResultSet==java.sql.ResultSet.CONCUR_READ_ONLY,
               getSQLText(),
               getParameterValueSet(),
                                             false, timeoutMillis);
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Related Classes of org.apache.derby.iapi.sql.conn.StatementContext

  • org.apache.derby.iapi.types.SQLBinary
  • org.apache.derby.iapi.types.SQLChar
  • org.apache.derby.impl.jdbc.EmbedConnection
  • org.apache.derby.impl.jdbc.EmbedConnection30
  • org.apache.derby.impl.jdbc.EmbedConnectionContext
  • org.apache.derby.impl.jdbc.EmbedResultSet
  • org.apache.derby.impl.jdbc.EmbedResultSet20
  • org.apache.derby.impl.sql.compile.DropSchemaNode
  • org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext
  • org.apache.derby.impl.sql.depend.BasicDependencyManager
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