Package org.apache.derby.iapi.services.loader

Examples of org.apache.derby.iapi.services.loader.GeneratedClass

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    ** Put them in the compilation context -- this is where
    ** they are expected.
    */
    getCompilerContext().setSavedObjects(ps.getSavedObjects());
    getCompilerContext().setCursorInfo(ps.getCursorInfo());
    GeneratedClass gc = ps.getActivationClass();
   
    return gc;
  }
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            {
              throw StandardException.newException(SQLState.LANG_STOP_AFTER_OPTIMIZING);
            }
          }

          GeneratedClass ac = qt.generate(preparedStmt.getByteCodeSaver());

          generateTime = getCurrentTimeMillis(lcc);
          /* endTimestamp only meaningful if generateTime is meaningful.
           * generateTime is meaningful if STATISTICS TIMING is ON.
           */
 
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    GenericPreparedStatement ps = cs.getPreparedStatement();

    synchronized (ps) {
      if (ps.upToDate()) {
        GeneratedClass ac = ps.getActivationClass();

        // Check to see if the statement was prepared before some change
        // in the class loading set. If this is the case then force it to be invalid
        int currentClasses =
            getLanguageConnectionFactory().getClassFactory().getClassLoaderVersion();

        if (ac.getClassLoaderVersion() != currentClasses) {
          ps.makeInvalid(DependencyManager.INTERNAL_RECOMPILE_REQUEST, this);
        }

        // note that the PreparedStatement is not kept in the cache. This is because
        // having items kept in the cache that ultimately are held onto by
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    {
      /* Has the activation class changed? */
      if (gc != ps.getActivationClass())
      {

                GeneratedClass newGC;

        // ensure the statement is valid by rePreparing it.
                // DERBY-3260: If someone else reprepares the statement at the
                // same time as we do, there's a window between the calls to
                // rePrepare() and getActivationClass() when the activation
                // class can be set to null, leading to NullPointerException
                // being thrown later. Therefore, synchronize on ps to close
                // the window.
                synchronized (ps) {
                    ps.rePrepare(getLanguageConnectionContext());
                    newGC = ps.getActivationClass();
                }

        /*
        ** If we get here, it means the PreparedStatement has been
        ** recompiled.  Get a new Activation and check whether the
        ** parameters are compatible.  If so, transfer the parameters
        ** from the old Activation to the new one, and make that the
        ** current Activation.  If not, throw an exception.
        */
        BaseActivation    newAC = (BaseActivation) newGC.newInstance(lcc);

        DataTypeDescriptor[]  newParamTypes = ps.getParameterTypes();

        /*
        ** Link the new activation to the prepared statement.
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        GenericPreparedStatement ps = cs.getPreparedStatement();

        synchronized (ps) {
            if (ps.upToDate()) {
                GeneratedClass ac = ps.getActivationClass();

                // Check to see if the statement was prepared before some change
                // in the class loading set. If this is the case then force it to be invalid
                int currentClasses =
                        getLanguageConnectionFactory().getClassFactory().getClassLoaderVersion();

                if (ac.getClassLoaderVersion() != currentClasses) {
                    ps.makeInvalid(DependencyManager.INTERNAL_RECOMPILE_REQUEST, this);
                }

                // note that the PreparedStatement is not kept in the cache. This is because
                // having items kept in the cache that ultimately are held onto by
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                  boolean scrollable)
    throws StandardException
  {
    Activation ac;
    synchronized (this) {
      GeneratedClass gc = getActivationClass();

      if (gc == null) {
        rePrepare(lcc);
        gc = getActivationClass();
      }
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            {
              throw StandardException.newException(SQLState.LANG_STOP_AFTER_OPTIMIZING);
            }
          }

          GeneratedClass ac = qt.generate(preparedStmt.getByteCodeSaver());

          generateTime = getCurrentTimeMillis(lcc);
          /* endTimestamp only meaningful if generateTime is meaningful.
           * generateTime is meaningful if STATISTICS TIMING is ON.
           */
 
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    ** Put them in the compilation context -- this is where
    ** they are expected.
    */
    getCompilerContext().setSavedObjects(ps.getSavedObjects());
    getCompilerContext().setCursorInfo(ps.getCursorInfo());
    GeneratedClass gc = ps.getActivationClass();
   
    return gc;
  }
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        ** recompiled.  Get a new Activation and check whether the
        ** parameters are compatible.  If so, transfer the parameters
        ** from the old Activation to the new one, and make that the
        ** current Activation.  If not, throw an exception.
        */
        GeneratedClass    newGC = ps.getActivationClass();

        BaseActivation    newAC = (BaseActivation) newGC.newInstance(lcc);

        DataTypeDescriptor[]  newParamTypes = ps.getParameterTypes();

        /*
        ** Link the new activation to the prepared statement.
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    LanguageConnectionContext lcc =
      (LanguageConnectionContext) ContextService.getContext
                                          (LanguageConnectionContext.CONTEXT_ID);
    ClassFactory classFactory = lcc.getLanguageConnectionFactory().getClassFactory();

    GeneratedClass gc = classFactory.loadGeneratedClass(className, byteCode);

    /*
    ** No special try catch logic to write out bad classes
    ** here.  We don't expect any problems, and in any
    ** event, we don't have the class builder available
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Related Classes of org.apache.derby.iapi.services.loader.GeneratedClass

  • org.apache.derby.impl.jdbc.EmbedPreparedStatement
  • org.apache.derby.impl.sql.compile.ExecSPSNode
  • org.apache.derby.impl.sql.compile.StatementNode
  • org.apache.derby.impl.sql.conn.GenericLanguageConnectionContext
  • org.apache.derby.impl.sql.GenericActivationHolder
  • org.apache.derby.impl.sql.GenericPreparedStatement
  • org.apache.derby.impl.sql.GenericStatement
  • org.apache.derby.impl.sql.GenericStorablePreparedStatement
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